Water Scarcity, Conservation, and Management

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Questions and Answers

What two sources provide most of the world's freshwater?

Surface runoff and groundwater.

What cycle ensures that water is a renewable resource?

The hydrological cycle

What fraction of the Earth’s surface is covered by water?

Three-fourths

What is one cause of variations in water resource availability?

<p>Variations in seasonal and annual precipitation.</p> Signup and view all the answers

By what year is it predicted that nearly two billion people will live in absolute water scarcity?

<p>2025</p> Signup and view all the answers

What is often the first thing people associate with water shortages?

<p>Regions with low rainfall or drought-prone areas.</p> Signup and view all the answers

What type of pots do women in Rajasthan use to collect and store water?

<p>Matkas (earthen pots)</p> Signup and view all the answers

True or False: All the earth's water is freshwater.

<p>False</p> Signup and view all the answers

Is water scarcity only a concern for regions with low rainfall?

<p>No</p> Signup and view all the answers

Explain how the hydrological cycle contributes to freshwater availability, and why this process doesn't eliminate the problem of water scarcity.

<p>The hydrological cycle renews and recharges freshwater through surface runoff and groundwater. However, it doesn't eliminate water scarcity due to uneven distribution of rainfall, seasonal variations, and increasing demand exceeding supply.</p> Signup and view all the answers

Describe a situation where a region with high annual rainfall might still experience water scarcity. What factors could contribute to this?

<p>A region with high annual rainfall might still experience water scarcity due to factors such as poor water management practices, inadequate infrastructure for water storage and distribution, high population density leading to increased demand, or high evaporation rates due to climate.</p> Signup and view all the answers

How does the concept of 'renewable resource' apply to water, and what limitations or caveats should be considered when referring to water as renewable?

<p>Water is considered a renewable resource due to the hydrological cycle. However, its renewability is limited by factors such as pollution, overuse, and climate change, which can reduce the availability of usable freshwater.</p> Signup and view all the answers

What are the main sources of freshwater, and how are these sources affected by human activities?

<p>The main sources of freshwater are surface runoff and groundwater. These sources are affected by human activities such as deforestation, urbanization which increases surface runoff, pollution, and excessive withdrawal for agriculture and industry.</p> Signup and view all the answers

Explain why simply having water on Earth ($3/4$ of the surface) does not guarantee water security for all regions or countries.

<p>Having water on Earth does not guarantee water security due to uneven distribution. Some regions may have abundant water resources, while others face scarcity due to geographical factors, climate patterns, and human activities that affect water availability and quality.</p> Signup and view all the answers

A large city is located next to a major river. Despite this, the city is facing increasing water scarcity issues. Explain some reasons why this might be the case.

<p>Despite being near a major river a city might face water scarcity due to pollution of the river, over-extraction of water for industries and agriculture, and infrastructure limitations preventing efficient water distribution.</p> Signup and view all the answers

Predict how climate change might exacerbate existing water scarcity issues in regions already prone to drought.

<p>Climate change can exacerbate water scarcity in drought-prone regions by increasing evaporation rates, altering rainfall patterns leading to prolonged droughts, and reducing snowpack which serves as a crucial water source.</p> Signup and view all the answers

What is the relationship between seasonal precipitation and water scarcity? Explain with an example.

<p>Seasonal precipitation patterns can create water scarcity issues if the majority of rainfall occurs during a short period, leading to flooding and runoff rather than groundwater recharge. For example, regions with monsoonal climates may experience intense rainfall followed by prolonged dry seasons, resulting in water stress during the dry months.</p> Signup and view all the answers

Outline some specific strategies for water conservation and management that could help mitigate the problem of water scarcity in a typically dry region.

<p>Strategies include implementing efficient irrigation techniques, capturing and storing rainwater, promoting water-wise landscaping, reducing water consumption in industries, and implementing policies for water pricing and conservation awareness.</p> Signup and view all the answers

Explain how variations in seasonal and annual precipitation contribute to water scarcity, even in regions with overall sufficient rainfall.

<p>Uneven distribution of rainfall throughout the year leads to periods of surplus followed by drought, making it difficult to manage water resources effectively for consistent supply.</p> Signup and view all the answers

Critically evaluate the assertion that water scarcity is solely a problem of regions with low rainfall, and provide examples to support your argument.

<p>Water scarcity is not solely a problem of regions with low rainfall; it also affects areas with high rainfall due to factors like pollution, inefficient water management, and overuse, such as industrial areas or densely populated cities.</p> Signup and view all the answers

Describe the limitations of relying solely on the hydrological cycle to address water scarcity issues in rapidly urbanizing areas.

<p>The hydrological cycle's natural replenishment may not keep pace with the increased demand and consumption in urban areas, compounded by reduced infiltration due to paved surfaces and pollution of water sources.</p> Signup and view all the answers

Analyze how human activities exacerbate water scarcity despite the renewability of water resources through the hydrological cycle.

<p>Pollution contaminates usable water, deforestation reduces water retention, and over-extraction depletes groundwater reserves, all of which disrupt the natural balance of the hydrological cycle and intensify water scarcity.</p> Signup and view all the answers

Predict the potential long-term effects on agricultural practices if the prediction that nearly two billion people will live in absolute water scarcity by 2025 comes to fruition.

<p>There will be a shift towards drought-resistant crops, increased reliance on efficient irrigation technologies, and potential food shortages due to reduced agricultural productivity in water-scarce regions.</p> Signup and view all the answers

Evaluate the social and economic consequences of a scenario where women have to spend significantly more time collecting water, as depicted by the image of women balancing 'matkas'.

<p>Reduced time for education and economic activities, increased health issues due to physical strain, and perpetuation of gender inequality due to the disproportionate burden on women.</p> Signup and view all the answers

Assess the role of technological innovations in mitigating water scarcity, considering both the potential benefits and drawbacks.

<p>Desalination and advanced irrigation can increase water availability, but may have environmental impacts and high costs, while water recycling reduces demand but requires sophisticated infrastructure and public acceptance.</p> Signup and view all the answers

Propose a comprehensive strategy for water conservation and management that addresses both the supply-side and demand-side challenges in a water-scarce region.

<p>Implementing rainwater harvesting, promoting efficient irrigation, reducing water wastage in industries/households, enacting stringent regulations on water pollution, and raising public awareness about water conservation.</p> Signup and view all the answers

Contrast the challenges of water scarcity in arid regions like the deserts of Rajasthan with those in water-rich but heavily populated urban centers.

<p>Arid regions face absolute water scarcity due to low rainfall, requiring strategies like water harvesting and conservation, while urban centers face scarcity due to high demand and pollution, requiring efficient distribution and wastewater treatment.</p> Signup and view all the answers

Explain how the continuous movement of water within the hydrological cycle contributes to its classification as a renewable resource, and discuss the implications if this cycle were disrupted by human activity or climate change?

<p>The hydrological cycle renews freshwater through runoff and groundwater recharge. Disruption could lead to decreased water availability or increased pollution.</p> Signup and view all the answers

Considering that approximately three-fourths of the Earth's surface is covered with water, what are the primary factors contributing to water scarcity in various regions, and how do these factors interact to exacerbate the issue?

<p>Uneven distribution, over-exploitation, pollution, and inefficient usage are key factors. These interact to reduce usable water sources.</p> Signup and view all the answers

The text mentions that by 2025, nearly two billion people will live-in absolute water scarcity. What broader geopolitical and socio-economic consequences might arise from such widespread water scarcity, and how might these consequences manifest differently in various regions?

<p>Increased conflicts over water resources, mass migrations, and economic instability are likely. These will vary based on local governance and resource management.</p> Signup and view all the answers

How does the perception that water is abundant and renewable hinder efforts to promote water conservation and sustainable management practices, and what strategies can be employed to overcome this perception?

<p>It leads to complacency and inefficient use. Strategies include education, pricing mechanisms, and regulations.</p> Signup and view all the answers

Discuss the limitations to the idea that the hydrological cycle ensures water is a renewable resource, especially when considering factors like pollution, climate change, and increasing global demand?

<p>Pollution reduces usable water, climate change alters precipitation patterns, and rising demand strains the cycle's capacity to replenish resources, thereby limiting renewability.</p> Signup and view all the answers

Evaluate the long-term effectiveness of relying solely on surface runoff and groundwater recharge as primary sources of freshwater, given the increasing pressures of urbanization, industrialization, and agricultural expansion on these resources?

<p>Unsustainable in the long term due to increased pollution, depletion, and altered recharge rates. Integrated water management strategies are needed.</p> Signup and view all the answers

In what ways do cultural practices, such as those exemplified by women in Rajasthan carrying 'matkas' over long distances, reflect and perpetuate existing water scarcity challenges, and how might alternative solutions address both the practical and cultural dimensions of water access?

<p>Reflects adaptation to scarcity but perpetuates gendered burden. Alternative solutions should involve community participation and technological solutions to address the issue.</p> Signup and view all the answers

What are the ethical considerations involved in prioritizing water allocation among competing uses such as agriculture, industry, domestic consumption, and environmental preservation, particularly in regions facing severe water scarcity?

<p>Balancing human needs with environmental sustainability; equitable access for all stakeholders, prioritizing basic human needs, minimizing environmental impact.</p> Signup and view all the answers

Imagine you are advising a government facing impending water scarcity. Propose three innovative policy interventions, beyond traditional conservation methods, that leverage technology, economics, and community engagement to ensure sustainable water management and equitable distribution, and explain how these interventions address the root causes of the problem?

<p>Implement smart water grids with real-time monitoring, establish water markets with pricing incentives, and promote community-based water governance to ensure sustainability.</p> Signup and view all the answers

What is one of the main causes of water scarcity in many cases?

<p>Over-exploitation</p> Signup and view all the answers

Besides domestic use, what other purpose requires a large amount of water when a population grows?

<p>To produce more food.</p> Signup and view all the answers

What type of agriculture consumes the largest amount of water?

<p>Irrigated agriculture</p> Signup and view all the answers

What is one way to revolutionize agriculture to combat water scarcity?

<p>Developing drought resistant crops.</p> Signup and view all the answers

What is one source of freshwater mentioned, other than groundwater?

<p>Precipitation</p> Signup and view all the answers

Name one factor that can lead to water scarcity, besides population growth.

<p>Unequal access to water.</p> Signup and view all the answers

What type of farming technique helps conserve water?

<p>Dry farming</p> Signup and view all the answers

What is extracted from the ground, that is used for irrigation?

<p>groundwater</p> Signup and view all the answers

True or false: Water Scarcity is only ever caused by low rainfall

<p>False</p> Signup and view all the answers

What cycle is mentioned in the text that concerns fresh water?

<p>Hydrological cycle</p> Signup and view all the answers

What are three primary causes of water scarcity?

<p>Over-exploitation, excessive use, and unequal access among different social groups.</p> Signup and view all the answers

How does a large population contribute to water scarcity, according to the text?

<p>A large population increases water demand for domestic use and food production, leading to over-exploitation of water resources.</p> Signup and view all the answers

What is the relationship between irrigated agriculture and water scarcity, as described in the text?

<p>Irrigated agriculture is the largest consumer of water and contributes significantly to water scarcity.</p> Signup and view all the answers

Suggest a technological solution that addresses water scarcity related to agriculture, based on the text.

<p>Developing drought-resistant crops; dry farming techniques.</p> Signup and view all the answers

Beyond the examples shown, describe a circumstance or event, not mentioned in the text, that could lead to water scarcity in a region, and how it leads to scarcity.

<p>A prolonged drought could severely reduce water availability, leading to scarcity for both human consumption and agriculture.</p> Signup and view all the answers

The text mentions that a region can have ample water resources but still face water scarcity. What are possible factors, not directly mentioned in the text, that cause this?

<p>Pollution of water sources rendering them unusable, or lack of infrastructure to transport water to where it is needed.</p> Signup and view all the answers

Propose a policy intervention that governments could implement to address the issue of unequal access to water, as identified as a cause of scarcity in the text.

<p>Implementing water management policies that prioritize equitable distribution, particularly to marginalized communities, and regulate water usage by large industries.</p> Signup and view all the answers

The text briefly mentions domestic use as one of the reasons for growing population contributing to water scarcity. Suggest ways to curb water usage in domestic settings.

<p>Installing water-efficient appliances (e.g., low-flow showerheads, dual-flush toilets) and promoting water conservation through public awareness campaigns.</p> Signup and view all the answers

Considering the information provided, what is the most sustainable approach that could be taken so that water is available for all?

<p>Implementing a combination of strategies, including promoting water conservation, investing in infrastructure for efficient distribution, developing drought-resistant crops, and establishing policies for equitable access.</p> Signup and view all the answers

Explain why addressing water scarcity requires a multidisciplinary approach.

<p>Addressing water scarcity requires integrating knowledge from hydrology, agriculture, economics, social science, and policy-making to develop sustainable and equitable solutions.</p> Signup and view all the answers

Explain how over-exploitation of water resources can lead to a cyclical problem, exacerbating water scarcity in the long term.

<p>Over-exploitation lowers the water table, increasing the cost and energy needed to pump water, which in turn encourages further, more intensive exploitation to offset the rising costs, leading to a continuous cycle of depletion.</p> Signup and view all the answers

Critically analyze the statement: 'Water scarcity is solely a problem of quantity, not distribution or access.'

<p>The statement is incorrect. While quantity is a factor, water scarcity is often exacerbated by unequal distribution and access issues among different social groups, limiting availability for some even when resources are physically present.</p> Signup and view all the answers

Describe how irrigated agriculture, while intended to increase food production, can contribute to water scarcity.

<p>Irrigated agriculture is a large water consumer, leading to the depletion of groundwater resources. Over-reliance on irrigation can result in reduced water availability for other essential uses.</p> Signup and view all the answers

Propose a strategy that balances the need for increased food-grain production with the sustainable use of water resources.

<p>A balanced strategy involves developing drought-resistant crops, promoting dry farming techniques, and improving irrigation efficiency to reduce water consumption while maintaining or increasing food production.</p> Signup and view all the answers

In what ways do television advertisements featuring farmers with their own wells potentially mislead the public about the reality of water access and scarcity?

<p>Such advertisements can create a false impression of universal access to water, masking the reality of water scarcity and unequal access faced by many farmers, especially those in marginalized communities or regions.</p> Signup and view all the answers

Explain how a region can have ample water resources and still face water scarcity. Provide specific examples beyond those mentioned in the text.

<p>A region may have ample water resources but face scarcity due to pollution rendering water unusable, inadequate infrastructure preventing distribution, or misallocation prioritizing certain sectors over basic human needs. For example, a city near a river might face scarcity due to industrial pollution contaminating the water.</p> Signup and view all the answers

What actions would be most effective in addressing water scarcity in regions with a large and growing population.

<p>Managing water demand through policies that promote water conservation, efficient irrigation techniques, and investing in infrastructure for water distribution are crucial. Addressing the root causes through family planning and education can also reduce population growth.</p> Signup and view all the answers

Outline the potential conflicts that might arise from over-exploitation and unequal access to water among different social groups.

<p>Over-exploitation and unequal access can lead to conflicts between upstream and downstream users, between agricultural and domestic users, and among different socioeconomic groups competing for limited resources, potentially resulting in social unrest or legal battles.</p> Signup and view all the answers

Analyze the social and economic impacts of water scarcity on communities heavily dependent on agriculture for their livelihoods.

<p>Water scarcity reduces crop yields and livestock productivity, diminishing income and employment opportunities in agriculture-dependent communities. This can lead to increased poverty, food insecurity, and migration to urban areas, straining urban resources and infrastructure.</p> Signup and view all the answers

Detail what specific measures can be implemented to ensure equitable water distribution during periods of drought, particularly focusing on vulnerable populations.

<p>During droughts, prioritize water allocation for essential human needs, establish water rationing and pricing policies that protect vulnerable populations, improve water storage and distribution infrastructure to minimize losses, and provide financial support to help affected communities adopt water-efficient technologies and practices.</p> Signup and view all the answers

What is one reason why farmers use tube-wells?

<p>Irrigation</p> Signup and view all the answers

What is one possible consequence of falling groundwater levels?

<p>Water scarcity</p> Signup and view all the answers

Besides being heavy users of water, what else do industries require?

<p>Power</p> Signup and view all the answers

What is something that urban lifestyles have added to?

<p>Water requirements</p> Signup and view all the answers

What is a common feature of housing societies in cities for meeting water needs?

<p>Groundwater pumping devices</p> Signup and view all the answers

What may water scarcity be due to?

<p>Bad quality of water</p> Signup and view all the answers

Name one thing that may pollute water.

<p>Industrial waste</p> Signup and view all the answers

What does JJM stand for?

<p>Jal Jeevan Mission</p> Signup and view all the answers

What is the goal of the Jal Jeevan Mission?

<p>Supply of potable piped water</p> Signup and view all the answers

Name one thing the need of the hour is to ensure?

<p>Food security</p> Signup and view all the answers

What is one of the key goals of Atal Jal (Atal Bhujal Yojana)?

<p>To bring in behavioral changes in the community towards water conservation.</p> Signup and view all the answers

In how many states is the 'Atal Bhujal Yojana' being implemented?

<p>Seven</p> Signup and view all the answers

What is a potential consequence of over-exploitation and mismanagement of water resources?

<p>Ecological crisis</p> Signup and view all the answers

Name one type of hydraulic structure that was constructed in ancient India for irrigation.

<p>Canals or Dams</p> Signup and view all the answers

What is the main problem that over-exploited activities cause?

<p>Depletion of water resources.</p> Signup and view all the answers

What attitude towards water is Atal Jal trying to change?

<p>From consumption to conservation</p> Signup and view all the answers

Give one example of a state where Atal Jal is being implemented.

<p>Gujarat (or Haryana, Karnataka, Madhya Pradesh, Maharashtra, Rajasthan, or Uttar Pradesh)</p> Signup and view all the answers

Besides conservation, what other kind of water management does Atal Jal promote?

<p>Smart water management</p> Signup and view all the answers

What aspect of water scarcity was focused before?

<p>Quantitative aspects</p> Signup and view all the answers

What can over exploitation do to natural eco systems?

<p>Degradation</p> Signup and view all the answers

Explain how intensive industrialization and urbanization in post-independent India have impacted freshwater resources.

<p>Intensive industrialization and urbanization have increased the demand for water and energy (often from hydroelectric power), and have led to pollution of water sources with industrial and domestic wastes.</p> Signup and view all the answers

Describe two ways in which the increasing number of industries contributes to water scarcity.

<p>Industries use large amounts of water directly and also require power, often generated from hydroelectric sources, which further depletes water resources.</p> Signup and view all the answers

In what ways do urban lifestyles contribute to water scarcity, beyond just increasing water demand?

<p>Urban centers with dense populations increase water and energy requirements and often rely on groundwater pumping, further depleting water resources.</p> Signup and view all the answers

Besides quantity, what other factor is causing water scarcity, according to the text?

<p>Pollution from domestic and industrial wastes, chemicals, pesticides, and fertilizers.</p> Signup and view all the answers

What is the main goal of the Jal Jeevan Mission (JJM)?

<p>To provide every rural household with a regular and assured supply of potable piped water at a service level of 55 liters per capita per day.</p> Signup and view all the answers

How does the use of tube-wells for irrigation impact groundwater levels and food security?

<p>It can lead to falling groundwater levels, which adversely affects water availability and threatens food security.</p> Signup and view all the answers

Explain the connection between hydroelectric power and water resources.

<p>Hydroelectric power generation relies on water resources, and can impact water availability downstream.</p> Signup and view all the answers

How does the text frame the effect of water scarcity on people's lives?

<p>It frames water scarcity as a threat to health, food security, and livelihoods.</p> Signup and view all the answers

What does the text suggest is the 'need of the hour' regarding water resources?

<p>To conserve and manage water resources.</p> Signup and view all the answers

Identify a specific source of water pollution mentioned in the text that is related to agricultural practices.

<p>Pesticides and fertilizers.</p> Signup and view all the answers

Explain how changing community behavior from consumption to conservation can aid in smart water management, according to the text.

<p>A shift in community behavior from consumption to conservation encourages responsible habits. This minimizes wastage, promotes efficient use, and helps preserve water resources for the future.</p> Signup and view all the answers

Based on the text, what are the potential consequences of over-exploitation and mismanagement of water resources?

<p>Over-exploitation and mismanagement of water resources can lead to the impoverishment of this resource and cause an ecological crisis, ultimately impacting our lives.</p> Signup and view all the answers

Name three states, mentioned in the text, where the Atal Bhujal Yojana is being implemented.

<p>Gujarat, Haryana, and Karnataka (any three from the list in the text).</p> Signup and view all the answers

What percentage of India's water-stressed blocks are accounted for by the states where Atal Jal is being implemented?

<p>The selected states account for about 37 percent of the total number of water-stressed blocks in India.</p> Signup and view all the answers

Propose a water conservation strategy, based on the text, suitable for implementation at the community level, other than changing consumption habits.

<p>Implementing water harvesting systems to capture rainwater, promoting the use of water-efficient irrigation techniques, and educating the community on water conservation methods.</p> Signup and view all the answers

What evidence from ancient India does the text provide regarding water management practices?

<p>The text mentions the construction of sophisticated hydraulic structures like dams built of stone rubble, reservoirs or lakes, embankments, and canals for irrigation.</p> Signup and view all the answers

How might modern dam construction continue the tradition of water management evident in ancient India?

<p>Modern dam construction continues the tradition by building dams in most of our river basins. This allows the capturing, storing, and distribution of water resources.</p> Signup and view all the answers

Besides quantitative aspects, what other dimension of water scarcity is discussed in the text?

<p>The text also considers the qualitative aspects of water scarcity.</p> Signup and view all the answers

In the context of the Atal Bhujal Yojana, describe the difference between 'over-exploited' and 'critical' blocks.

<p>They are both water-stressed areas with 'critical' situation being worse than 'over-exploited' in terms of the availability/scarcity of water.</p> Signup and view all the answers

How can individuals’ everyday experiences influence their role in water conservation?

<p>Everyday experiences, such as witnessing water scarcity or high water bills, can motivate individuals to adopt water-saving practices and support conservation efforts.</p> Signup and view all the answers

Explain how intensive industrialization and urbanization in post-independent India have collectively exacerbated the pressure on freshwater resources.

<p>Industrialization increases water demand for operations &amp; power (hydroelectric). Urbanization raises water &amp; energy needs and introduces groundwater pumping.</p> Signup and view all the answers

Critically evaluate the long-term sustainability of relying on individual groundwater pumping devices in housing societies and colonies to meet water needs.

<p>It's unsustainable. It can lead to groundwater depletion, affecting availability and food security.</p> Signup and view all the answers

What is the core objective of the Jal Jeevan Mission (JJM), and what specific service level does it aim to achieve for rural households?

<p>The JJM aims to provide assured potable piped water to every rural household at a service level of 55 litres per capita per day regularly.</p> Signup and view all the answers

Discuss how the use of fertilizers and pesticides in agriculture contributes to water scarcity, even when water is physically available.

<p>They pollute water sources. This makes the water hazardous for drinking/agriculture reducing usable water.</p> Signup and view all the answers

Propose a strategy to balance industrial water needs with the necessity of maintaining sustainable water resources for communities and ecosystems.

<p>Implement water-efficient technologies in industries, promote water recycling, regulate groundwater extraction, and incentivize conservation.</p> Signup and view all the answers

In many regions, water is available but water scarcity still exists. State the causes.

<p>Scarcity may be due to the bad quality of water.</p> Signup and view all the answers

Explain how dependence on hydroelectric power, while providing energy, can indirectly contribute to water resource challenges.

<p>Hydroelectric power relies on dams, which can alter river flow, impact ecosystems, and exacerbate water loss through evaporation.</p> Signup and view all the answers

Outline the major sources of water pollution in India.

<p>Major sources of water pollution include domestic and industrial wastes, chemicals, pesticides, and fertilizers used in agriculture.</p> Signup and view all the answers

Critically analyze the statement: "The need of the hour is to conserve and manage our water resources." Justify its importance in the context of the challenges discussed.

<p>Essential for health, food security, livelihoods, and productivity. Mismanagement worsen water availability, pollution, and long-term sustainability.</p> Signup and view all the answers

Assess the potential impact of climate change on the issues of water availability and quality discussed.

<p>Climate change can lead to altered rainfall patterns, increased droughts, and higher temperatures, exacerbating water scarcity and pollution.</p> Signup and view all the answers

Explain how over-exploitation of water can lead to an ecological crisis, detailing at least two specific potential consequences.

<p>Over-exploitation of water can lead to depletion of water resources and degradation of natural ecosystems, leading to an ecological crisis. Two potential consequences are the loss of biodiversity due to habitat destruction and desertification due to soil erosion and lack of moisture.</p> Signup and view all the answers

Critically evaluate the Atal Bhujal Yojana (Atal Jal). What are the potential challenges in changing community behavior from water consumption to conservation, and how might these be addressed?

<p>Atal Jal aims to shift community behavior towards water conservation. Challenges include ingrained habits, lack of awareness, and conflicting economic incentives. These could be addressed through comprehensive education programs, incentivizing water-efficient practices, and involving local leaders in promoting sustainable water management.</p> Signup and view all the answers

The text mentions multipurpose river projects. What are two potential benefits and two potential drawbacks of these projects, considering both environmental and socio-economic factors?

<p>Two benefits are irrigation for agriculture and hydroelectric power generation. Two drawbacks are displacement of communities due to dam construction and alteration of river ecosystems, affecting aquatic life and downstream water flow.</p> Signup and view all the answers

Describe a scenario where the quantitative and qualitative aspects of water scarcity are both significant factors. How might an integrated water resources management approach address this specific scenario?

<p>A scenario is industrial pollution in a region with limited water supply. The limited supply (quantitative) is further reduced by pollution (qualitative). An integrated approach would involve regulating industrial discharge, investing in water treatment, promoting water-efficient technologies, and diversifying water sources.</p> Signup and view all the answers

Explain how traditional water management techniques, like those used in ancient India, can be relevant in addressing contemporary water resource challenges. Provide a specific example.

<p>Traditional techniques like rainwater harvesting and decentralized water storage can enhance water availability and resilience. For example, ancient stepwells can inspire modern designs for groundwater recharge and community-based water management.</p> Signup and view all the answers

Propose a water conservation strategy for an urban setting, incorporating both technological solutions and policy interventions. What are some potential obstacles to its implementation?

<p>Strategy: Implement smart water metering, promote rainwater harvesting, and mandate water-efficient fixtures. Policy interventions include tiered water pricing and incentives for green infrastructure. Obstacles include high upfront costs, resistance from vested interests, and lack of public awareness.</p> Signup and view all the answers

Discuss how climate change can exacerbate the problems of water scarcity and water quality. What specific climate-related impacts pose the greatest threat to sustainable water management?

<p>Climate change increases evaporation, alters precipitation patterns, and intensifies droughts and floods. The greatest threats are increased water stress in already arid regions and more frequent contamination of water sources due to extreme weather events.</p> Signup and view all the answers

Elaborate on the concept of 'virtual water' or 'embedded water.' How does international trade in agricultural products impact water resource management in different regions?

<p>Virtual water is the water used to produce goods, especially agricultural products. International trade transfers water from water-rich to water-poor regions. This can exacerbate water scarcity in exporting regions and create dependency in importing regions, affecting local water management.</p> Signup and view all the answers

What innovative financial mechanisms could be used to fund water conservation and management projects, particularly in developing countries? Provide an example.

<p>Innovative mechanisms include green bonds, water funds, and payments for ecosystem services (PES). An example is a water fund where downstream water users pay upstream communities to protect forests, ensuring a stable water supply and ecosystem health.</p> Signup and view all the answers

The text discusses the importance of integrated water resources management. What are the key principles of this approach, and how does it differ from traditional, sectoral approaches to water management?

<p>Key principles include holistic planning, stakeholder participation, and balancing environmental, social, and economic needs. It differs from sectoral approaches by considering the interconnectedness of water resources and involving multiple sectors in decision-making, rather than managing water in isolated silos.</p> Signup and view all the answers

Explain how intensive industrialization contributes to both water quantity and water quality issues in post-independent India.

<p>Industries heavily use water and also rely on hydroelectric power, further depleting water resources. The discharge of domestic and industrial wastes, chemicals, pesticides, and fertilizers pollutes available freshwater, rendering it hazardous.</p> Signup and view all the answers

Assess the long-term implications of widespread irrigation using personal wells and tube-wells on regional water availability and food security.

<p>Excessive use of personal wells and tube-wells for irrigation leads to falling groundwater levels, which adversely affects water availability. Diminished water resources threaten long-term agricultural productivity, and consequently food security.</p> Signup and view all the answers

Describe how urban lifestyles and densely populated urban centers exacerbate water and energy demands, leading to increased pressure on existing resources.

<p>Urban centers require more water and energy due to large populations and modern lifestyles. Housing societies using groundwater pumping devices further strain water resources, intensifying overall demand.</p> Signup and view all the answers

Discuss how the Jal Jeevan Mission (JJM) addresses both the quality and quantity aspect of water scarcity in rural areas. What are the key objectives of the mission?

<p>JJM aims to provide potable piped water at a service level of 55 litres per capita per day on a long-term basis. The mission ensures both quality by providing safe drinking water and quantity by ensuring a regular and adequate supply.</p> Signup and view all the answers

Analyze the potential environmental and socio-economic consequences if the pollution of water resources continues to escalate despite efforts like the Jal Jeevan Mission.

<p>Continued pollution of water resources can lead to health hazards, food insecurity from irrigation water contamination, and economic instability. The situation is compounded by the impacts on livelihoods and ecological imbalances.</p> Signup and view all the answers

In what ways can water scarcity, even when water is available, still be a problem?

<p>Water scarcity can still be a problem even where water is available due to bad water quality. Water may be available, but not potable or usable for other purposes.</p> Signup and view all the answers

Beyond the initiatives mentioned in the text, propose a strategy for community-level water conservation in urban housing societies that complements existing groundwater pumping practices.

<p>Implement rainwater harvesting systems in urban housing societies. Complement groundwater use with collected rainwater to reduce depletion, and promote water recycling to ensure the long-term sustainability of water extraction.</p> Signup and view all the answers

How can industries balance their water and power needs with the imperative of environmental stewardship and sustainable resource management?

<p>Industries can shift towards water-efficient technologies and processes, and use renewable power sources like solar. Improving wastewater treatment and reuse, coupled with responsible water governance standards, promotes long-term sustainability.</p> Signup and view all the answers

Critically evaluate the assumption that increasing water availability alone, as targeted by initiatives such as the Jal Jeevan Mission, will automatically improve the quality of life and enhance ease of living in rural areas.

<p>Increasing water availability does not automatically improve the quality of life. Water quality alongside effective water management, sanitation practices, and community participation is essential for meaningful improvements in rural living standards.</p> Signup and view all the answers

Discuss the potential conflicts that might arise between industrial water needs and agricultural demands, especially in regions already experiencing water stress. How can these conflicts be resolved?

<p>Industries and agriculture compete for limited water resources, causing conflicts. Solutions include prioritizing water-efficient agriculture, implementing water pricing mechanisms. Another solution could be promoting dialogue among stakeholders to allocate water fairly.</p> Signup and view all the answers

Explain how changing community behavior from consumption to conservation can impact the success of the Atal Bhujal Yojana in water-stressed regions?

<p>A shift towards conservation reduces water demand, allowing aquifers to recharge. This ensures long-term water availability, promotes responsible water usage, and fosters community ownership of water resources.</p> Signup and view all the answers

Critically evaluate the potential long-term ecological consequences of relying heavily on large-scale dams for water management, as mentioned in the text?

<p>While dams provide water and power, they can disrupt river ecosystems, alter sediment flow, and harm aquatic life. Sustainable water management requires balancing the benefits of dams with their environmental costs, considering alternatives like groundwater recharge and conservation.</p> Signup and view all the answers

The text mentions that over-exploitation and mismanagement of water resources will impoverish this resource and cause ecological crisis that may have profound impact on our lives.' Elaborate on the cascading effects of water resource depletion on various sectors (e.g., agriculture, industry, public health) of a region.

<p>Water depletion leads to reduced agricultural yields, impacting food security and livelihoods. Industries face water scarcity, hindering production. Public health suffers due to inadequate sanitation and increased waterborne diseases. Overall, it causes economic decline and social instability.</p> Signup and view all the answers

How can traditional water harvesting techniques be integrated with modern water management strategies to enhance water security in water-stressed regions?

<p>Traditional techniques like rainwater harvesting and storage can supplement modern systems, reducing reliance on centralized water sources. These methods are often more sustainable and environmentally friendly, promoting local water autonomy.</p> Signup and view all the answers

The text highlights the implementation of Atal Bhujal Yojana in several states. What are some potential challenges in implementing such a scheme across diverse socio-economic and environmental conditions, and how can these be addressed?

<p>Challenges include varying water availability, community engagement levels, and financial resources. Solutions involve tailored approaches, participatory planning, capacity building, and flexible funding mechanisms to suit specific local contexts.</p> Signup and view all the answers

How can advancements in technology, such as remote sensing and data analytics, be leveraged to improve water resource monitoring and management in the context of increasing water scarcity?

<p>Remote sensing can monitor water levels, usage patterns, and water quality over large areas. Data analytics can identify trends, predict shortages, and optimize water allocation. This enables proactive and evidence-based water management decisions.</p> Signup and view all the answers

Discuss the ethical considerations surrounding water allocation in regions facing water scarcity, particularly between competing needs such as agriculture, industry, and domestic use.

<p>Ethical considerations involve ensuring equitable access to water, prioritizing basic human needs, and balancing economic and environmental sustainability. Transparent decision-making processes and stakeholder involvement are essential for fair water allocation.</p> Signup and view all the answers

In what ways might climate change exacerbate existing water scarcity issues, and what adaptation strategies can be implemented to build resilience to these impacts?

<p>Climate change can alter precipitation patterns, increase evaporation rates, and intensify droughts, worsening water scarcity. Adaptation strategies include water conservation, efficient irrigation, rainwater harvesting, and diversifying water sources to enhance resilience.</p> Signup and view all the answers

The text briefly mentions 'smart water management.' Elaborate on what constitutes 'smart water management' in the context of urban and rural settings, providing specific examples of practices or technologies that embody this approach.

<p>Smart water management involves using data-driven technologies and innovative practices to optimize water use in different regions. For example, in urban areas, smart meters and leak detection systems can reduce water loss. In rural areas, precision irrigation and soil moisture sensors can improve agricultural water efficiency.</p> Signup and view all the answers

Explain how transboundary water resource management (e.g., rivers shared between states or countries) complicates water conservation efforts, and propose strategies for fostering cooperation and sustainable usage in such contexts.

<p>Transboundary issues involve conflicting interests, uneven resource distribution, and potential disputes. Strategies for cooperation include establishing joint management agreements, transparent data sharing, benefit-sharing mechanisms, and diplomatic dialogue to ensure equitable and sustainable water use.</p> Signup and view all the answers

What is the main purpose of a dam?

<p>To obstruct, direct, or retard the flow of water.</p> Signup and view all the answers

What is the name given to the section of a dam where water is intended to flow?

<p>Spillway or Weir</p> Signup and view all the answers

Name one place where sophisticated irrigation works were found in ancient India as per the text.

<p>Kalinga / Nagarjunakonda / Bennur / Kolhapur</p> Signup and view all the answers

During whose rule were dams, lakes, and irrigation systems extensively built?

<p>Chandragupta Maurya</p> Signup and view all the answers

In which century was the tank in Hauz Khas, Delhi, constructed?

<p>14th Century</p> Signup and view all the answers

What did Jawaharlal Nehru call dams?

<p>Temples of modern India</p> Signup and view all the answers

Traditionally, what was the main purpose of building dams?

<p>Irrigation</p> Signup and view all the answers

By whom was the tank in Hauz Khas constructed?

<p>Iltutmish</p> Signup and view all the answers

Name one purpose, besides irrigation, for which dams are built today.

<p>Electricity generation (or water supply, flood control, recreation, inland navigation, fish breeding)</p> Signup and view all the answers

What type of resource management approach did multi-purpose projects use after independence?

<p>Integrated water resources management</p> Signup and view all the answers

What is another name used sometimes to refer to the reservoir of a dam, instead of the dam structure itself?

<p>Dam</p> Signup and view all the answers

What is the term used to describe dams that serve multiple purposes?

<p>Multi-purpose projects</p> Signup and view all the answers

Give an example of a material that could be used to categorize dams.

<p>Timber / Embankment / Masonry</p> Signup and view all the answers

Name one river basin where water is used for both hydel power production and irrigation.

<p>Sutluj-Beas river basin</p> Signup and view all the answers

Name one of the criteria used for classifying dams.

<p>Structure / Intended purpose / Height</p> Signup and view all the answers

In which river basin is the Hirakud project located?

<p>Mahanadi basin</p> Signup and view all the answers

Besides water conservation, what is the Hirakud project designed to help with?

<p>Flood control</p> Signup and view all the answers

What river is referred to as the 'river of sorrow' in the Bhadu song?

<p>Damodar</p> Signup and view all the answers

What is one benefit that dams provide for the economy?

<p>Integrate agriculture and the village economy with rapid industrialisation and growth of the urban economy (or Electricity generation, water supply for domestic and industrial uses, flood control, recreation, inland navigation and fish breeding)</p> Signup and view all the answers

When was the Bhadu festival celebrated according to the song?

<p>Bhadra</p> Signup and view all the answers

Explain how the multi-purpose projects were envisioned to help India after Independence. Provide one specific way they were intended to drive national development.

<p>Multi-purpose projects aimed to overcome the colonial past by managing water resources in an integrated manner for development and progress. Specifically, they were intended to boost agricultural output through irrigation.</p> Signup and view all the answers

Describe the hydraulic structures built during Chandragupta Maurya’s reign, and what was their significance?

<p>During Chandragupta Maurya's reign, dams, lakes, and irrigation systems were extensively built. Their significance was to efficiently manage water resources for agriculture and ensure food security.</p> Signup and view all the answers

What are the different ways in which dams can be classified? Give one example for each type of classification.

<p>Dams can be classified based on structure, purpose, and height. Based on Structure: Timber dams, embankment dams, or masonry dams. Based on Height: Large dams and major dams or alternatively as low dams, medium height dams and high dams.</p> Signup and view all the answers

Explain the role of a spillway in a dam and why it is necessary for the dam's functionality.

<p>A spillway is a section of a dam designed for water to flow over or through, either intermittently or continuously. It's necessary to manage water levels in the reservoir, preventing overtopping and potential dam failure.</p> Signup and view all the answers

How did Iltutmish contribute to water management in Delhi, and what was the purpose of his hydraulic structure?

<p>Iltutmish constructed the tank in Hauz Khas, Delhi, in the 14th century. Its purpose was to supply water to the Siri Fort area.</p> Signup and view all the answers

Describe the water harvesting systems that existed in India in the past.

<p>During the time of Chandragupta Maurya, dams, lakes and irrigation systems were extensively built. Evidences of sophisticated irrigation works have also been found in Kalinga, (Odisha), Nagarjunakonda (Andhra Pradesh), Bennur (Karnataka), Kolhapur (Maharashtra), etc.</p> Signup and view all the answers

How does classifying dams from low to high vary from classifying as large and major dams?

<p>Classifying dams as low, medium, or high refers to their physical height, providing a basic measure of their size. Classifying them as large and major often includes criteria beyond height, such as reservoir capacity and potential environmental impact.</p> Signup and view all the answers

What are the benefits of dams and how can they boost the development of any nation?

<p>Dams play a vital role in irrigation, generating electricity, and help in water management. The water can hence be used for industrial and domestic purposes. This helps in boosting the economy of the nation and contribute to its infrastructure.</p> Signup and view all the answers

What is the difference between a dam and a reservoir?

<p>A dam is a barrier constructed across a river to obstruct the flow of water. A reservoir is the artificial lake or impoundment created behind the dam.</p> Signup and view all the answers

List any 2 states and the hydraulic structure present there.

<p>Odisha: Evidences of sophisticated irrigation works have been found in Kalinga. Andhra Pradesh: Evidences of sophisticated irrigation works have been found in Nagarjunakonda.</p> Signup and view all the answers

Explain why Jawaharlal Nehru referred to dams as the 'temples of modern India.'

<p>Nehru called dams 'temples of modern India' because they integrated agricultural and village economic development with rapid industrialization and urban economic growth.</p> Signup and view all the answers

How does the Bhakra-Nangal project exemplify a multipurpose project?

<p>The Bhakra-Nangal project exemplifies a multipurpose project because its water is used for both hydel power production and irrigation.</p> Signup and view all the answers

In what ways can dams be used to mitigate the impact of floods?

<p>Dams help control floods by impounding river and rainwater, thereby regulating the flow of water and reducing the risk of overflowing during heavy rainfall.</p> Signup and view all the answers

Besides irrigation and power generation name three other purposes for which dams being constructed today?

<p>Besides irrigation and power generation, dams are constructed today for domestic and industrial water supply, flood control, recreation, inland navigation, and fish breeding.</p> Signup and view all the answers

What does the popular Bhadu song in the Damodar valley region narrate, and what does it imply about the river's impact?

<p>The Bhadu song narrates the troubles faced by people due to the Damodar river's flooding which implies that the river, known as the 'river of sorrow', significantly disrupts lives and livelihoods.</p> Signup and view all the answers

How does the Hirakud project demonstrate the integration of water conservation and flood control?

<p>The Hirakud project conserves water through impoundment for later use and controls floods by regulating the release of water, preventing excessive flow downstream.</p> Signup and view all the answers

Explain how a dam contributes to both the urban and rural economies.

<p>Dams support urban economies by providing water for domestic and industrial uses and support rural economies by providing water used for irrigation and agriculture.</p> Signup and view all the answers

Describe a potential negative environmental impact of building large dams.

<p>A potential negative environmental impact of building large dams is the alteration of natural river flow, which can disrupt aquatic ecosystems and affect fish migration and breeding.</p> Signup and view all the answers

Explain how inland navigation can be integrated with the construction of dams, and what benefits does it provide?

<p>Dams can create reservoirs that allow for inland navigation, providing a waterway for transportation of goods and people, which can boost regional trade and connectivity.</p> Signup and view all the answers

How can dams contribute to recreation, and what are the potential economic benefits of this?

<p>Dams can create reservoirs suitable for recreational activities like boating, fishing, and swimming, which can attract tourists, boosting local economies through increased spending on lodging, food, and related services.</p> Signup and view all the answers

Critically evaluate how the perception and utilization of dams have evolved from ancient civilizations to the multi-purpose projects initiated post-independence in India.

<p>Ancient civilizations used dams primarily for irrigation and water management, as seen in the Ganga harvesting system and Chandragupta Maurya's era. Post-independence, dams were envisioned as multi-purpose projects for national development, aiming to overcome colonial handicaps through integrated water resource management.</p> Signup and view all the answers

Assess the potential long-term ecological impacts of large-scale dam construction, considering historical examples of irrigation works and water management systems.

<p>Large-scale dam construction can lead to significant ecological disruptions, including altered river flows, habitat fragmentation, and reduced biodiversity. While historical irrigation works also modified ecosystems, the scale and intensity of modern dams often exacerbate these impacts, leading to more profound and potentially irreversible environmental changes.</p> Signup and view all the answers

Compare and contrast the water management approaches of ancient Indian civilizations with the multi-purpose projects launched after Independence, considering their respective impacts on social equity and environmental sustainability.

<p>Ancient civilizations focused on localized, community-based water management, like the Hauz Khas tank, promoting social equity and sustainability. Post-Independence projects, being large-scale and state-controlled, can lead to unequal resource distribution and environmental degradation, despite aiming for national development.</p> Signup and view all the answers

Analyze how the classification of dams by structure, purpose, and height reflects the technological and socio-economic priorities of different eras in water resource management.

<p>The classification of dams shows a shift from simple timber or embankment dams in ancient times to large, multi-purpose dams post-Independence, reflecting technological advancements and priorities in water management. This reflects shifts in engineering capabilities and different priorities.</p> Signup and view all the answers

Discuss the implications of classifying a 'dam' as the reservoir rather than the structure itself, in terms of environmental assessment and regulatory oversight.

<p>Classifying the 'dam' as the reservoir shifts focus to the broader environmental impacts, such as habitat inundation, rather than just the structural integrity. This implies a need for comprehensive environmental assessments and regulatory oversight that consider the ecological and social effects of the entire water impoundment, not just the dam structure.</p> Signup and view all the answers

Evaluate the claim that multi-purpose projects were the 'vehicle that would lead the nation to development and progress.'

<p>While multi-purpose projects aimed at development, they had limitations. They boosted irrigation and power but also caused displacement and environmental issues. The claim holds some truth in terms of infrastructure and productivity, but the true development has to account for these consequences.</p> Signup and view all the answers

How might sophisticated irrigation works during Chandragupta Maurya's time compare to contemporary approaches to water management?

<p>During Chandragupta Maurya's time, irrigation was advanced, with dams built. Modern approaches are now incorporating technology and understanding of ecological balance. Contemporary approaches aim for sustainable usage through sophisticated approaches.</p> Signup and view all the answers

What factors might influence the selection of dam type based on material used and the height of the dam.

<p>Material selection depends on the local availability, cost, and geological conditions, such as soil stability. The height is determined by the purpose—higher dams are for large reservoirs, which need stable foundations to withstand the pressure; lower dams might suit smaller, irrigation needs.</p> Signup and view all the answers

Synthesize how the historical emphasis on dam construction reflects a broader cultural and societal relationship with water resources.

<p>Historically, dam construction mirrors a societal urge to control nature for beneficial use, reflecting a pragmatic relationship with water. This relationship varies across cultures and is linked to how each society views, values, and manages this vital resource.</p> Signup and view all the answers

How can traditional water management techniques inform sustainable practices in modern water resources engineering?

<p>Traditional methods like those from the Ganga harvesting system offer environmentally conscious designs that can reduce ecological damage. Applying these learnings to engineering can lead to sustainable solutions.</p> Signup and view all the answers

Explain how the integration of agriculture, village economy, industrialization, and urban growth, as envisioned by Nehru through dam construction, could potentially create socio-economic dependencies or vulnerabilities within local communities.

<p>The integration could lead to displacement, loss of traditional livelihoods, and dependence on urban markets, creating vulnerability if these systems fail or become inaccessible.</p> Signup and view all the answers

Dams are described as multi-purpose projects. Analyze a potential conflict that may arise between two different purposes of a dam (e.g., irrigation and recreation) in a specific region. Propose a solution that optimizes the use of the dam's resources.

<p>A conflict could arise if water levels for recreation clash with irrigation needs. A solution could involve tiered water release schedules that prioritize irrigation during critical growing seasons, and then increase water levels for recreation during off-peak agricultural periods.</p> Signup and view all the answers

The Bhadu song references the Damodar River as the 'river of sorrow' due to flooding. Considering the Hirakud project also aims for flood control, discuss the possible reasons why certain regions still experience flooding despite dam construction.

<p>Reasons could include inadequate dam capacity for extreme weather events, siltation reducing storage volume, or mismanagement of water release during heavy rainfall, and deforestation in the upper course of river.</p> Signup and view all the answers

Evaluate the sustainability of multi-purpose dam projects, considering both their economic benefits (irrigation, power generation) and potential environmental costs (habitat destruction, altered river ecosystems).

<p>Sustainability requires careful balance. Economic gains must be weighed against long-term ecological damage. Mitigation measures and adaptive management are essential to minimize negative environmental impacts.</p> Signup and view all the answers

Critically analyze the statement made by Jawaharlal Nehru, labeling dams as the 'temples of modern India'. Discuss both the merits and potential drawbacks of this perspective in the context of contemporary environmental and social concerns.

<p>While dams contribute to development, calling them 'temples' overlooks potential social and ecological costs like displacement and habitat destruction. A balanced perspective acknowledges both benefits and drawbacks.</p> Signup and view all the answers

Compare and contrast the traditional methods of water conservation with modern dam projects, highlighting the strengths and weaknesses of each approach in the context of long-term water resource management.

<p>Traditional methods are often community-based and ecologically sound but may lack the capacity to address large-scale water needs. Modern dams offer greater water storage but can have significant environmental and social impacts.</p> Signup and view all the answers

If a new multi-purpose dam is planned for a drought-prone region, what criteria should be prioritized during the planning and construction phases to ensure equitable water distribution and minimize potential conflicts among different stakeholders (farmers, industries, urban residents)?

<p>Prioritize participatory planning, transparent decision-making, environmental impact assessments, clearly defined water allocation rules, and mechanisms for conflict resolution to ensure equitable distribution and minimize conflicts.</p> Signup and view all the answers

Explain how climate change could affect the functionality and effectiveness of existing multi-purpose dam projects, particularly in regions that are highly dependent on these dams for irrigation and water supply.

<p>Climate change can alter rainfall patterns, increase evaporation rates, and cause more frequent extreme events, which can disrupt water supply, reduce hydropower generation, and increase the risk of dam failure.</p> Signup and view all the answers

Considering the potential negative impacts of large dams, such as displacement and environmental degradation, discuss alternative strategies for achieving similar development goals (irrigation, power generation, flood control) in a more sustainable and socially responsible manner.

<p>Alternatives include decentralized renewable energy systems, rainwater harvesting, improved irrigation techniques, watershed management, and natural flood management strategies.</p> Signup and view all the answers

The text mentions the Sutluj-Beas river basin. What is the potential impact of interlinking rivers on the existing multi-purpose projects like the Bhakra-Nangal project in terms of water availability, power generation, and ecological balance?

<p>Interlinking rivers may alter natural flow patterns and reduce water availability for existing projects, affecting power generation. It can also disrupt the ecological balance and increase water pollution. But, it could also increase power generation and water availability.</p> Signup and view all the answers

What is one negative effect of regulating rivers with dams?

<p>Poor sediment flow.</p> Signup and view all the answers

What do dams make difficult for aquatic fauna?

<p>To migrate or spawning.</p> Signup and view all the answers

What type of area does the Sardar Sarovar Project provide water to?

<p>Drought prone.</p> Signup and view all the answers

In which state is the Sardar Sarovar Dam built?

<p>Gujarat</p> Signup and view all the answers

Name one state that benefits from the Sardar Sarovar Project.

<p>Maharashtra, Madhya Pradesh, Gujarat, or Rajasthan.</p> Signup and view all the answers

What is a goal of the 'per drop more crop' initiative?

<p>Water saving technologies</p> Signup and view all the answers

Name one objective of the Pradhan Mantri Krishi Sinchaee Yojana programme.

<p>To enhance the physical access of water on the farm and expand cultivable area under assured irrigation.</p> Signup and view all the answers

What is the result of reservoirs that are created on floodplains?

<p>Submerge the existing vegetation</p> Signup and view all the answers

Name one state involved in the Krishna-Godavari dispute.

<p>Karnataka or Andhra Pradesh.</p> Signup and view all the answers

Which river is the Sardar Sarovar Dam built across?

<p>Narmada River</p> Signup and view all the answers

What percentage of the command area in Gujarat is drought-prone?

<p>About 75 percent</p> Signup and view all the answers

Name one state where the Sardar Sarovar Project irrigates land.

<p>Rajasthan OR Maharashtra</p> Signup and view all the answers

What is one ecological consequence of shifting to water-intensive crops?

<p>Salinisation of the soil</p> Signup and view all the answers

What is the name of the scheme that ensures access to irrigation for all agricultural farms?

<p>Pradhan Mantri Krishi Sinchaee Yojana</p> Signup and view all the answers

What is one negative consequence that dams have caused?

<p>Induced earthquakes OR water-borne diseases OR pests OR pollution OR triggered floods</p> Signup and view all the answers

What is the negative consequence of sedimentation in flood plains?

<p>Deprived of silt OR natural fertiliser</p> Signup and view all the answers

What type of crops are farmers shifting to?

<p>Water intensive and commercial crops</p> Signup and view all the answers

Name one district in Rajasthan that the project irrigates.

<p>Barmer OR Jalore</p> Signup and view all the answers

What is one thing that floods devastate?

<p>Life OR Property OR caused extensive soil erosion</p> Signup and view all the answers

What has irrigation changed in many regions?

<p>Cropping pattern</p> Signup and view all the answers

How does irrigation lead to ecological consequences such as salinization of the soil?

<p>Over-irrigation, especially with water-intensive crops, raises the water table, leading to salt deposition on the soil surface as water evaporates.</p> Signup and view all the answers

In what way have dams ironically triggered floods, and what is the primary cause of this issue?

<p>Dams trigger floods due to sedimentation in the reservoir, which reduces the water storage capacity and causes water to overflow during heavy rainfall.</p> Signup and view all the answers

What is the goal of the Pradhan Mantri Krishi Sinchaee Yojana, and how does it aim to achieve rural prosperity?

<p>The scheme aims to provide access to protective irrigation for all agricultural farms, enhancing agricultural productivity and income.</p> Signup and view all the answers

Explain how the shift to water-intensive and commercial crops affects soil fertility and what natural process is disrupted?

<p>This shift leads to soil erosion and deprives flood plains of silt, a natural fertilizer, adding to land degradation.</p> Signup and view all the answers

Besides controlling floods and providing irrigation, big dams may lead to some environmental problems. Name two such problems.

<p>Big dams may induce earthquakes and may cause water-borne diseases and pests.</p> Signup and view all the answers

Name one district in Rajasthan that will benefit from the Sardar Sarovar Dam project?

<p>Barmer or Jalore.</p> Signup and view all the answers

What is one way that the shift toward water-intensive crops impacts water resources sustainability?

<p>It depletes groundwater resources.</p> Signup and view all the answers

Explain how dams can negatively impact river ecosystems, focusing on sediment flow and aquatic habitats.

<p>Dams disrupt natural sediment flow, leading to sedimentation at the reservoir bottom and rockier stream beds, which degrades aquatic habitats. Also, dams fragment rivers which hinders the migration of aquatic species.</p> Signup and view all the answers

Describe the primary objective of the 'Per Drop More Crop' initiative under the Pradhan Mantri Krishi Sinchaee Yojana.

<p>The primary objective is to improve on-farm water use efficiency to reduce wastage and increase availability using irrigation and other water-saving technologies.</p> Signup and view all the answers

What percentage of the command area in Gujarat is prone to drought conditions, according to the provided information?

<p>About 75 percent.</p> Signup and view all the answers

How has irrigation led to changes in cropping patterns, and what type of crops are particularly associated with this shift?

<p>Irrigation has incentivized farmers to shift towards water-intensive crops and commercial crops.</p> Signup and view all the answers

What are the intended benefits of the Sardar Sarovar Project, and which states are expected to gain from it?

<p>The Sardar Sarovar Project aims to provide irrigation to drought-prone and desert areas. The states expected to gain are: Maharashtra, Madhya Pradesh, Gujarat, and Rajasthan.</p> Signup and view all the answers

What is one consequence of floods, besides loss of life and property, that affects agricultural lands?

<p>Extensive soil erosion.</p> Signup and view all the answers

Explain why reservoirs created by dams on floodplains can lead to the degradation of vegetation and soil.

<p>Reservoirs submerge existing vegetation and soil, causing decomposition over time, which degrades the vegetation and soil.</p> Signup and view all the answers

Summarize the central issue in the Krishna-Godavari dispute as mentioned in the text.

<p>The dispute concerns the diversion of more water at Koyna by the Maharashtra government for a multipurpose project, which reduces downstream flow in Karnataka and Andhra Pradesh, adversely affecting agriculture and industry.</p> Signup and view all the answers

Besides irrigation, what other objectives does the Pradhan Mantri Krishi Sinchaee Yojana aim to achieve regarding water usage?

<p>Besides irrigation, the Yojana aims to enhance physical access of water on farms, expand cultivatable areas under assured irrigation, improve on-farm water use efficiency, and introduce sustainable water conservation practices.</p> Signup and view all the answers

What specific geographical areas within Gujarat are intended to benefit from the irrigation facilities provided by the Sardar Sarovar Project?

<p>The Sardar Sarovar Project is intended to provide irrigation facilities to 3112 villages in 15 districts of Gujarat.</p> Signup and view all the answers

Describe how regulating and damming rivers can lead to excessive sedimentation and what effect this excessive sedimentation has?

<p>Regulating and damming rivers affects their natural flow causing excessive sedimentation at the bottom of the reservoir.</p> Signup and view all the answers

Explain how dams hinder the migration of the aquatic fauna?

<p>Dams fragment rivers which makes it difficult for aquatic fauna to migrate, especially for spawning.</p> Signup and view all the answers

What are the potential consequences for agriculture and industry in Karnataka and Andhra Pradesh due to the diversion of water at Koyna, according to the text?

<p>Reduced downstream flow due to water diversion at Koyna could adversely affect agriculture and industry in these states.</p> Signup and view all the answers

How does the construction of dams impact the natural flow of rivers and the habitats of aquatic life?

<p>Dams regulate river flow leading to poor sediment flow, excessive sedimentation, rockier stream beds, fragmented rivers, and hinder aquatic fauna migration.</p> Signup and view all the answers

What are the primary objectives of the Pradhan Mantri Krishi Sinchaee Yojana, and how do these objectives address water management issues?

<p>The scheme aims to enhance physical access to water on farms, expand cultivable area under assured irrigation, improve on-farm water use efficiency, and introduce sustainable water conservation practices.</p> Signup and view all the answers

Explain the nature of the Krishna-Godavari dispute and what implications arise from the diversion of water at Koyna by the Maharashtra government?

<p>The dispute involves objections from Karnataka and Andhra Pradesh regarding Maharashtra's diversion of water at Koyna, which reduces downstream flow and adversely impacts agriculture and industry.</p> Signup and view all the answers

Describe the multi-state benefits of the Sardar Sarover Dam project.

<p>The Sardar Sarovar project aims to provide irrigation facilities to 18.45 lakh hectare of land, covering 3112 villages in 15 districts of Gujarat. It will also meet the requirement of water in drought-prone and desert areas.</p> Signup and view all the answers

Assess the potential ecological, economic, and social trade-offs involved in large dam projects like the Sardar Sarovar Dam. Give one ecological, economic, and social impact.

<p>Ecological: Submergence of existing vegetation and soil. Economic: Provision of irrigation to drought prone and desert areas. Social: Meeting the water requirement of people living in 4 different states.</p> Signup and view all the answers

How does the fragmentation of rivers by dams affect aquatic fauna, and why is this a significant concern pertaining to river ecosystems?

<p>Fragmentation hinders migration, especially for spawning which is important for the life cycles of the river's aquatic life (i.e. breeding).</p> Signup and view all the answers

What specific measures can be implemented as part of the Pradhan Mantri Krishi Sinchaee Yojana to promote sustainable water conservation practices at the farm level?

<p>Focusing on efficient irrigation techniques such as drip irrigation, rainwater harvesting, and promoting water-saving technologies is crucial.</p> Signup and view all the answers

In the context of inter-state water disputes like the Krishna-Godavari issue, what mechanisms or frameworks can be utilized to facilitate equitable water sharing and conflict resolution among the involved states?

<p>Negotiation, mediation, and the establishment of water-sharing agreements based on scientific data and equitable principles are helpful. Additionally, involvement of a third party is used frequently.</p> Signup and view all the answers

Explain the role of sedimentation in reservoirs created by dams and its effects on both the reservoir itself and the downstream river ecosystems.

<p>Sedimentation reduces reservoir capacity and leads to rockier stream beds and poorer habitats for aquatic life downstream.</p> Signup and view all the answers

Critically evaluate the claim that large-scale, multi-purpose projects are always the most effective solution for addressing water resource challenges, considering both their benefits and drawbacks.

<p>While they can provide irrigation and water supply, they also have ecological and social costs, so they may not always be the most effective water management solution.</p> Signup and view all the answers

Explain how irrigation projects, intended to combat drought, can paradoxically lead to ecological issues such as salinisation? What specific agricultural practices contribute to this phenomenon?

<p>Irrigation projects, while aiming to alleviate drought, can lead to salinisation due to increased water availability encouraging farmers to cultivate water-intensive commercial crops. Excessive irrigation, without proper drainage, raises the water table, bringing dissolved salts to the surface, which accumulate as water evaporates, thus degrading the soil.</p> Signup and view all the answers

Critically evaluate the statement that large dams have been 'mostly unsuccessful' in controlling floods during times of excessive rainfall. What factors contribute to this ineffectiveness, and what alternative strategies could be more effective?

<p>Large dams are often unsuccessful in controlling floods during excessive rainfall due to their limited capacity to handle sudden and massive inflows, exacerbated by sedimentation reducing reservoir volume. More effective strategies include restoring natural floodplains, improving drainage systems, implementing early warning systems, and promoting decentralized water management.</p> Signup and view all the answers

Discuss the long-term impacts of sedimentation in dam reservoirs, focusing on both the structural integrity of the dam and the ecological consequences for downstream areas. How does sediment deprivation affect the fertility of floodplains?

<p>Sedimentation in dam reservoirs reduces their water storage capacity and lifespan, threatening the structural integrity of the dam. Downstream, sediment deprivation leads to loss of fertile silt deposits on floodplains, reducing agricultural productivity and increasing the need for artificial fertilizers. It disrupts river ecosystems and coastal areas.</p> Signup and view all the answers

Analyze how the shift to water-intensive commercial crops, facilitated by irrigation projects, affects the overall water balance in a region. What are the potential cascading effects on local ecosystems and community water access?

<p>The shift to water-intensive crops strains regional water balances by depleting groundwater reserves and reducing river flows. This can lead to water scarcity for local ecosystems, affecting biodiversity, and reduce community access to potable water, potentially causing socio-economic conflicts.</p> Signup and view all the answers

The text mentions that multi-purpose projects induced earthquakes. Elaborate on the mechanisms by which large reservoirs can trigger seismic activity. What geological conditions make an area more susceptible to reservoir-induced seismicity (RIS)?

<p>Large reservoirs can induce seismicity by increasing pore water pressure in the underlying rocks and altering stress regimes, especially in areas with pre-existing faults. Geological conditions like fractured rock formations, proximity to tectonic faults, and high permeability increase susceptibility to RIS.</p> Signup and view all the answers

Assess the role of the Pradhan Mantri Krishi Sinchaee Yojana in promoting sustainable irrigation practices. To what extent does the program address issues like water-use efficiency and equitable water distribution, considering the diverse agricultural landscapes across the country?

<p>The Pradhan Mantri Krishi Sinchaee Yojana aims to improve irrigation access and water use efficiency through measures like micro-irrigation and watershed development. However, its effectiveness in equitable water distribution depends on local implementation, adaptive strategies for diverse landscapes, and addressing socio-economic disparities in access to resources and technology.</p> Signup and view all the answers

Discuss the socio-economic implications of shifting from traditional, drought-resistant crops to water-intensive commercial crops in drought-prone areas. How does this transition affect the vulnerability of smallholder farmers to water scarcity and market fluctuations?

<p>Shifting to water-intensive crops increases farmers' incomes, but makes them vulnerable to water scarcity. This reliance also exposes them to market fluctuations, as commercial crops are subject to price volatility. Smallholder farmers are particularly at risk of water scarcity reducing production. Thus, they are subject to market volatility which impacts their livelihoods.</p> Signup and view all the answers

Describe the potential for integrated water resource management (IWRM) approaches to mitigate the negative ecological and socio-economic impacts associated with large-scale irrigation projects. How can IWRM principles be applied to balance agricultural needs with environmental sustainability and community water rights?

<p>IWRM can balance agricultural needs with sustainability, community water rights, and ecosystem protection through stakeholder-inclusive allocation, demand management, pollution control, and environmental monitoring. Implementing IWRM improves water use efficiency to meet various needs.</p> Signup and view all the answers

Analyze the relationship between deforestation in catchment areas and the effectiveness of dams in controlling floods. How does the loss of forest cover impact sedimentation rates and overall watershed hydrology, and what are the implications for dam management?

<p>Deforestation in catchment areas increases soil erosion and sedimentation rates within reservoirs and changes watershed hydrology by reducing infiltration and increasing surface runoff. It reduces flood control and increases siltation. Thus, it impacts the dam's effectiveness.</p> Signup and view all the answers

The text refers to 'water-borne diseases and pests' resulting from excessive water use. Explain how irrigation projects and altered water patterns can create favorable conditions for the proliferation of disease vectors and agricultural pests. Provide specific examples.

<p>Irrigation projects and excessive water use can create breeding grounds for disease vectors like mosquitoes (malaria, dengue) and snails (schistosomiasis). They can also promote agricultural pests by providing them with the right conditions to thrive. For example, the brown planthopper in rice paddies, or locusts, can cause problems due to artificial irrigation.</p> Signup and view all the answers

Explain how the shift towards water-intensive commercial crops, enabled by irrigation projects, can lead to salinization of the soil. What specific processes are involved?

<p>Over-irrigation in arid and semi-arid regions raises the water table, bringing dissolved salts to the surface. Evaporation then leaves these salts behind, increasing the soil's salinity.</p> Signup and view all the answers

Critically evaluate the statement: 'Big dams have mostly been unsuccessful in controlling floods at the time of excessive rainfall.' Provide reasons to support or refute this statement, considering factors beyond the dam's mere presence.

<p>While dams can store water, their effectiveness is limited by reservoir capacity, inflow rates, and operational management. Poor management or unprecedented rainfall can overwhelm dams, exacerbating floods.</p> Signup and view all the answers

How might the deprivation of silt in flood plains, resulting from sedimentation in dam reservoirs, exacerbate land degradation issues? Explain the role of silt in maintaining soil health.

<p>Silt is a natural fertilizer, rich in nutrients. When dams trap silt, downstream floodplains are deprived of this replenishment, leading to nutrient depletion and decreased soil fertility.</p> Signup and view all the answers

Discuss the potential trade-offs between providing assured water supply to drought-prone regions and the ecological consequences associated with irrigation projects. How can these trade-offs be managed for sustainable development?

<p>While irrigation reduces drought vulnerability, it can cause salinization, altered cropping patterns, and waterlogging. Sustainable management involves efficient irrigation techniques, drainage systems, and crop diversification.</p> Signup and view all the answers

How can projects like Pradhan Mantri Krishi Sinchaee Yojana contribute to reducing dependence on large-scale dams for irrigation, and what are the potential benefits of this shift?

<p>By providing access to protective irrigation for all farms, the scheme reduces reliance on large dams. Benefits include decentralized water management, improved water-use efficiency, and reduced environmental impact.</p> Signup and view all the answers

Analyze the potential long-term impacts of induced seismicity caused by multipurpose projects on the stability and safety of infrastructure and surrounding communities.

<p>Induced seismicity can weaken infrastructure, increase the risk of landslides, and displace communities. Long-term impacts include economic losses, environmental degradation, and social disruption.</p> Signup and view all the answers

How can remote sensing technologies and GIS (Geographic Information Systems) be used to monitor and manage the ecological consequences, such as salinization and soil erosion, associated with irrigation projects?

<p>Remote sensing and GIS can map soil salinity, monitor land degradation, and assess waterlogging. This information supports targeted interventions, improved irrigation practices, and sustainable land management.</p> Signup and view all the answers

Assess the role of community participation and local knowledge in the planning and management of irrigation projects to ensure their sustainability and minimize negative environmental impacts.

<p>Community involvement fosters ownership, ensures projects align with local needs, and leverages indigenous knowledge for sustainable practices. This promotes equitable water distribution and environmental stewardship.</p> Signup and view all the answers

Explain how sedimentation in reservoirs not only affects flood control but also impacts the long-term viability of the dam for irrigation purposes. What strategies can be employed to mitigate this issue?

<p>Sedimentation reduces reservoir capacity, diminishing the dam's ability to store water for irrigation. Mitigation strategies include watershed management, sediment removal, and bypass tunnels.</p> Signup and view all the answers

Evaluate the effectiveness of current policies and regulations in addressing the water-borne diseases and pests associated with excessive water use in irrigation projects.

<p>Current policies may lack comprehensive monitoring, enforcement, and integration of public health considerations. Improved regulations should address water quality, sanitation, and vector control.</p> Signup and view all the answers

Evaluate the long-term ecological consequences of damming rivers, focusing on the impact on sediment flow and aquatic habitats. How do these alterations affect the overall health and biodiversity of river ecosystems?

<p>Damming rivers disrupts natural sediment flow, leading to excessive sedimentation in reservoirs, rockier stream beds, and degraded aquatic habitats. This fragmentation hinders aquatic species migration and spawning, impacting biodiversity and ecosystem health.</p> Signup and view all the answers

Synthesize the objectives of the Pradhan Mantri Krishi Sinchaee Yojana. How do these objectives aim to balance increased agricultural productivity with sustainable water resource management?

<p>The objectives include enhancing physical water access, expanding irrigated land, improving water use efficiency, and introducing sustainable conservation practices. The aim is to increase agricultural output while minimizing water wastage and promoting long-term water availability.</p> Signup and view all the answers

Analyze potential economic trade-offs associated with large-scale water resource projects like the Sardar Sarovar Dam. What are the potential benefits and drawbacks for the involved states, considering factors like irrigation, industry, and displacement?

<p>Benefits include irrigation for drought-prone areas and industrial water supply. Drawbacks involve potential displacement of communities, submergence of land, and inter-state water disputes over resource allocation, creating economic and social challenges.</p> Signup and view all the answers

How might the design and implementation of future water resource projects incorporate ecological considerations to mitigate the negative impacts observed in past projects?

<p>Future projects should focus on maintaining natural sediment flow, providing fish passages for aquatic migration, minimizing floodplain submergence, and implementing more efficient irrigation technologies to balance ecological preservation with water resource utilization.</p> Signup and view all the answers

Critically evaluate the statement: 'Multi-purpose water projects invariably lead to more harm than good.' Support your stance with evidence from the text and suggest scenarios where the benefits might outweigh the costs, or vice versa.

<p>While multi-purpose projects offer benefits like irrigation and water supply, ecological damage and displacement can cause significant harm. Benefits may outweigh costs in regions with severe water scarcity if sustainable practices are prioritized; however, in ecologically sensitive areas, the costs might be too high.</p> Signup and view all the answers

Elaborate on the concept of 'per drop more crop' within the context of the Pradhan Mantri Krishi Sinchaee Yojana. How does this strategy contribute to water conservation and improved agricultural output in water-stressed regions?

<p><code>Per drop more crop</code> focuses on maximizing crop yield per unit of water used through technologies like micro-irrigation, precision farming, and efficient irrigation scheduling. This approach enhances water productivity, reduces wastage, and boosts agricultural output in water-stressed areas.</p> Signup and view all the answers

Discuss the implications of inter-state water disputes, using the Krishna-Godavari dispute as an example. How can these disputes be resolved to ensure equitable water distribution and avoid adverse consequences for agriculture and industry?

<p>Inter-state disputes lead to uncertainty, hindering agricultural and industrial planning. Resolution requires negotiation, scientific assessment of water availability, equitable sharing agreements, and potentially, the intervention of a central authority or tribunal to ensure fair water distribution.</p> Signup and view all the answers

Assess the potential long-term social impacts of projects like the Sardar Sarovar Dam, focusing on displacement, resettlement, and cultural heritage. What measures can be taken to mitigate negative social consequences and ensure equitable outcomes for affected communities?

<p>Displacement leads to loss of homes, livelihoods, and cultural heritage. Mitigation requires comprehensive resettlement plans, fair compensation, community involvement in decision-making, and culturally sensitive rehabilitation programs to ensure equitable outcomes.</p> Signup and view all the answers

Explain the role of technology and innovation in promoting sustainable water conservation practices, as envisioned by the Pradhan Mantri Krishi Sinchaee Yojana. Provide examples of specific technologies that can enhance water use efficiency in agriculture.

<p>Technology promotes sustainable practices through micro-irrigation, precision agriculture, remote sensing for water monitoring, and automated irrigation systems. These innovations optimize water use, reduce wastage, and improve crop yields while conserving water resources.</p> Signup and view all the answers

In what ways does excessive sedimentation due to damming rivers compromise the effectiveness and longevity of water storage projects? What strategies can be implemented to manage and mitigate these sedimentation challenges?

<p>Excessive sedimentation reduces reservoir capacity, impacting water storage and power generation. Strategies include sediment bypass tunnels, dredging, watershed management, sustainable dam operations, and sediment flushing to maintain reservoir capacity and project effectiveness.</p> Signup and view all the answers

Explain how dams can negatively impact the aquatic ecosystems, considering both physical barriers and changes in water quality?

<p>Dams fragment rivers, impeding aquatic fauna migration, especially for spawning. They also cause poor sediment flow and excessive sedimentation, leading to rockier stream beds, poorer habitats, and submerged vegetation which decomposes.</p> Signup and view all the answers

What are the key objectives of the Pradhan Mantri Krishi Sinchaee Yojana, and how do these aim to address the challenges in the agricultural sector?

<p>The scheme aims to enhance physical water access on farms, expand cultivable area under assured irrigation, improve on-farm water use efficiency, and introduce sustainable water conservation practices.</p> Signup and view all the answers

Describe the potential long-term ecological consequences of reservoirs submerging existing vegetation and soil in floodplains?

<p>Submerged vegetation decomposes, releasing greenhouse gasses. It disrupts nutrient cycles, alters water chemistry, and destroys terrestrial habitats, impacting biodiversity and ecosystem services.</p> Signup and view all the answers

Analyze the potential conflicts that may arise between states sharing river water, considering the competing demands of agriculture, industry, and domestic use.

<p>Upstream states may divert more water, reducing downstream flow and impacting agriculture and industry in downstream states, leading to disputes over water rights and resource allocation.</p> Signup and view all the answers

How do multi-purpose projects, such as the Sardar Sarovar Dam, attempt to balance the benefits of irrigation and water supply with the potential environmental costs?

<p>Such projects aim to provide irrigation and water supply while implementing mitigation measures such as environmental impact assessments, resettlement plans, and compensatory afforestation.</p> Signup and view all the answers

What are the key benefits of the Sardar Sarovar Project, and how will it impact the drought-prone and desert areas it serves?

<p>It provides irrigation to 1.845 million hectares of land in 3112 villages across 15 districts in Gujarat, addressing water scarcity and boosting agricultural productivity in drought-prone and desert areas.</p> Signup and view all the answers

What is the central issue in the Krishna-Godavari dispute, and how does it reflect broader challenges in managing interstate river water resources?

<p>The dispute concerns Maharashtra diverting more water at Koyna, reducing downstream flow for Karnataka and Andhra Pradesh. This reflects broader challenges in equitable water allocation and management among states sharing river basins.</p> Signup and view all the answers

What are the potential trade-offs between large-scale water resource projects and smaller, decentralized water management approaches, in terms of cost, efficiency, and environmental impact?

<p>Large projects offer economies of scale but have higher environmental costs. Smaller projects are more environmentally friendly but may be less efficient and more costly per unit of water delivered.</p> Signup and view all the answers

What specific measures can be implemented to minimize sedimentation in reservoirs and mitigate its negative impacts on downstream ecosystems?

<p>Implement soil conservation measures, afforestation in the catchment area, sediment flushing, and dredging to reduce sedimentation and maintain downstream water quality and habitat viability.</p> Signup and view all the answers

Explain how climate change might exacerbate existing inter-state water disputes, and suggest strategies for promoting more collaborative water management?

<p>Climate change increases water scarcity and demand, intensifying competition. Strategies include joint river basin management, water-sharing agreements, and investments in water-efficient technologies.</p> Signup and view all the answers

Propose a comprehensive strategy to mitigate ecological consequences like salinisation of the soil resulting from irrigation-induced changes in cropping patterns.

<p>Implement integrated soil management practices including crop rotation with salt-tolerant species, controlled irrigation techniques to prevent waterlogging, and the application of soil amendments like gypsum to leach excess salts. Regular soil monitoring and adaptive agricultural strategies are crucial.</p> Signup and view all the answers

How can the design and operation of dams be improved to address the issue of sedimentation in reservoirs and its impact on flood control?

<p>Implement sediment bypass tunnels, regular dredging of reservoirs, and upstream soil conservation measures to reduce sediment inflow. Optimize dam operations to allow for sediment flushing during controlled releases, maintaining reservoir capacity and flood control effectiveness.</p> Signup and view all the answers

Analyze the potential drawbacks of shifting towards water-intensive and commercial crops due to irrigation, and suggest alternative strategies for sustainable agriculture.

<p>Over-reliance on water-intensive crops can lead to water scarcity, soil degradation, and ecological imbalances. Promote diversification with drought-resistant crops, adopt efficient irrigation methods like drip irrigation, and integrate traditional water conservation techniques to ensure sustainable water use and environmental protection.</p> Signup and view all the answers

Discuss the socio-economic implications of multi-purpose projects, considering both their benefits and potential adverse effects on local communities.

<p>While multi-purpose projects provide irrigation, electricity, and improved water supply, they can also displace communities, disrupt traditional livelihoods, and create social inequalities. Comprehensive resettlement plans, community involvement in project planning, and equitable distribution of benefits are essential to mitigate negative impacts and promote inclusive development.</p> Signup and view all the answers

Outline a strategy to minimize the risk of water-borne diseases and pest outbreaks associated with multi-purpose water projects.

<p>Implement strict water quality monitoring, promote proper sanitation practices, control vector breeding sites through integrated pest management, and ensure access to clean drinking water and healthcare services. Educating communities about hygiene and disease prevention is also crucial.</p> Signup and view all the answers

In the context of drought-prone regions, evaluate the efficacy of lift irrigation schemes and propose additional measures to enhance water security.

<p>While lift irrigation can provide assured water supply, it is energy-intensive and may not be sustainable in the long run. Integrate rainwater harvesting, watershed management, and groundwater recharge to augment water availability. Promote water-use efficiency through micro-irrigation and encourage cultivation of drought-resistant crops to enhance water security.</p> Signup and view all the answers

What are the main goals of the Pradhan Mantri Krishi Sinchaee Yojana, and how can its implementation be improved to maximize its impact on rural prosperity?

<p>The scheme aims to provide protective irrigation to all agricultural farms, enhance water use efficiency, and improve water management practices. Improve by ensuring equitable access to irrigation, promoting community participation, providing training on efficient irrigation techniques, and monitoring project outcomes to ensure sustainability and maximize positive impact on rural livelihoods.</p> Signup and view all the answers

Analyze the interrelation between heavy rainfall, dam construction, and increased flood risk, and suggest strategies for better flood management in such scenarios.

<p>The construction of dams can inadvertently increase flood risk due to sedimentation reducing reservoir capacity. Employ improved dam operational strategies, enhance early warning systems, improve watershed management practices, and develop comprehensive flood preparedness plans to mitigate risks effectively.</p> Signup and view all the answers

How does soil erosion intensify the impact of floods, and what measures can be implemented to address land degradation in flood-prone areas?

<p>Soil erosion exacerbates flood impact by increasing sedimentation and reducing soil's water absorption capacity. Implement soil conservation measures like afforestation, terracing, and contour bunding to control erosion. Promote sustainable land management practices to improve soil health and reduce vulnerability to floods.</p> Signup and view all the answers

What are the potential environmental and social consequences of diverting water from one region to another through large-scale irrigation projects?

<p>Water diversion can cause ecological imbalances in the source region, disrupt aquatic ecosystems, and affect livelihoods dependent on the diverted water. Ensure social equity and environmental sustainability by conducting comprehensive impact assessments, ensuring community participation, and implementing mitigation measures to protect ecosystems and livelihoods in both regions.</p> Signup and view all the answers

How can irrigation projects inadvertently lead to ecological problems such as salinisation, and what measures can mitigate these effects?

<p>Over-irrigation, especially in arid regions, can raise the water table, leading to increased evaporation and salt deposition in the topsoil, causing salinisation. Mitigation strategies include implementing efficient irrigation techniques like drip irrigation, promoting salt-tolerant crops, and improving drainage systems to control water table levels.</p> Signup and view all the answers

What are the environmental consequences of shifting from traditional crops to water-intensive commercial crops due to irrigation, and how does this impact long-term sustainability?

<p>Shifting to water-intensive crops can deplete water resources, increase fertiliser and pesticide use, and degrade soil quality, leading to reduced biodiversity and ecological imbalances. This undermines long-term sustainability by affecting ecosystem resilience and agricultural productivity.</p> Signup and view all the answers

Explain how sedimentation in reservoirs behind dams can paradoxically increase flood risk, and what strategies can be employed to manage this issue effectively?

<p>Sedimentation reduces the water storage capacity of reservoirs, decreasing their ability to absorb floodwaters. Management strategies include regular dredging to remove sediment, implementing soil conservation measures in the upstream catchment area to reduce erosion, and designing dams with sediment bypass systems.</p> Signup and view all the answers

What is the role of the Pradhan Mantri Krishi Sinchaee Yojana in addressing regional disparities in irrigation access, and what specific provisions ensure equitable water distribution?

<p>The Pradhan Mantri Krishi Sinchaee Yojana aims to provide assured irrigation to all agricultural farms, focusing on protective irrigation to mitigate drought risks. It ensures equitable water distribution through promoting efficient water use technologies, developing water harvesting structures, and integrating water management at the district level.</p> Signup and view all the answers

Assess the claim that big dams are mostly unsuccessful in controlling floods at the time of excessive rainfall. What alternative flood management strategies could complement or replace large dam projects to enhance overall effectiveness?

<p>Big dams can be overwhelmed by extreme rainfall events, leading to uncontrolled releases that exacerbate flooding. Alternative strategies include restoring natural floodplains, improving urban drainage systems, implementing early warning systems, and promoting community-based flood preparedness measures.</p> Signup and view all the answers

How do multi-purpose projects contribute to water-borne diseases and pests, and what public health interventions are necessary to mitigate these risks in project-affected areas?

<p>Multi-purpose projects can create stagnant water bodies that serve as breeding grounds for disease vectors like mosquitoes and snails, increasing the risk of water-borne diseases. Public health interventions include regular water quality monitoring, vector control programs, improved sanitation facilities, and health education campaigns.</p> Signup and view all the answers

In what ways does assured water supply impact cropping patterns? Discuss the ecological and economic trade-offs associated with these changes in water-scarce regions.

<p>Assured water supply often leads to a shift towards water-intensive commercial crops, increasing agricultural productivity and income. However, this can result in water depletion, soil degradation, and reduced biodiversity. Balancing economic benefits with ecological costs requires promoting water-efficient farming practices and diversifying crop choices.</p> Signup and view all the answers

What measures can be implemented to manage irrigation-induced land degradation effectively, ensuring both agricultural productivity and environmental sustainability?

<p>Effective measures include implementing precision irrigation techniques, promoting crop rotation and diversification to improve soil health, using integrated nutrient management to reduce fertiliser runoff, and adopting soil conservation practices like terracing and contour ploughing to prevent erosion.</p> Signup and view all the answers

Discuss the socio-economic implications of irrigation projects on tribal and drought-prone regions, considering both potential benefits and challenges for local communities.

<p>Irrigation projects can improve agricultural productivity, income, and food security in tribal and drought-prone regions. However, they can also lead to displacement, loss of traditional livelihoods, and increased social inequalities if not managed inclusively. Addressing these challenges requires participatory planning, fair compensation, and skill development programs.</p> Signup and view all the answers

How can technology and innovation be leveraged to enhance the efficiency and sustainability of irrigation practices in India, reducing water wastage and environmental impact?

<p>Technology and innovation can improve irrigation efficiency through precision irrigation systems, remote sensing for water management, and the use of drought-resistant crop varieties. These approaches reduce water wastage, minimise environmental impact, and enhance agricultural productivity, contributing to sustainable water resource management.</p> Signup and view all the answers

What are the long-term ecological consequences of altered sediment flow caused by dams, and how might these changes affect riverine ecosystems?

<p>Altered sediment flow leads to rockier stream beds, poorer aquatic habitats, reduced nutrient availability downstream, and changes in the river's morphology, affecting the overall health and biodiversity.</p> Signup and view all the answers

Explain how the fragmentation of rivers by dams impacts the migratory patterns and reproductive success of aquatic species, particularly focusing on the challenges faced by anadromous fish.

<p>Dams obstruct migration routes, hindering access to spawning grounds. For anadromous fish, this can drastically reduce reproductive success, leading to population declines and potential local extinctions.</p> Signup and view all the answers

Describe the potential environmental impacts of submerging vegetation and soil in the floodplains due to reservoir creation, particularly concerning greenhouse gas emissions, and propose mitigation strategies.

<p>Submerged vegetation decomposes anaerobically, releasing methane and carbon dioxide, potent greenhouse gases. Mitigation can include vegetation clearing before flooding, managing water levels, and capturing released gases for energy production.</p> Signup and view all the answers

Assess the trade-offs between the benefits of large water resource projects like the Sardar Sarovar Dam and the environmental and social costs of displacement and habitat destruction, arguing for a more sustainable approach.

<p>While providing irrigation and water supply, such projects often displace communities, destroy habitats, and alter river ecosystems. A sustainable approach would prioritize smaller-scale, decentralized solutions, comprehensive environmental assessments, and inclusive stakeholder engagement.</p> Signup and view all the answers

Critically analyze the objectives of the Pradhan Mantri Krishi Sinchaee Yojana in the context of sustainable water management, identifying potential conflicts between increasing irrigation and conserving water resources.

<p>The scheme aims to expand irrigation and improve water efficiency but may face conflicts if increased irrigation leads to over-extraction, depletion of groundwater, and unsustainable agricultural practices. Balancing these goals requires careful planning and incentives for water conservation.</p> Signup and view all the answers

Given the interstate nature of many river systems in India, what mechanisms can be established to encourage cooperation and avoid conflicts over water sharing, as exemplified by the Krishna-Godavari dispute?

<p>Establishing robust interstate water management boards with clear mandates, independent monitoring, fair allocation principles, and dispute resolution mechanisms can foster cooperation and prevent conflicts, ensuring equitable water sharing.</p> Signup and view all the answers

Propose alternative strategies for water management in drought-prone regions that minimize reliance on large dams and associated environmental impacts, considering factors like water harvesting, groundwater recharge, and efficient irrigation techniques.

<p>Alternatives include rainwater harvesting, watershed management, groundwater recharge, promoting drought-resistant crops, and implementing micro-irrigation techniques like drip irrigation to conserve water and enhance resilience.</p> Signup and view all the answers

How does excessive sedimentation at the bottom of reservoirs impact the storage capacity and longevity of dams, and what strategies can be employed to mitigate this issue and prolong the lifespan of these structures?

<p>Sedimentation reduces storage capacity, rendering dams less effective over time. Mitigation involves sediment flushing, dredging, watershed management to reduce erosion, and constructing sediment bypass tunnels.</p> Signup and view all the answers

In the context of the Sardar Sarovar Project, evaluate the impact of providing irrigation facilities to a large area on the local water table and long-term soil health, while also explaining measures to prevent waterlogging and salinization.

<p>Extensive irrigation can lead to waterlogging and salinization. Measures include promoting efficient irrigation techniques, implementing drainage systems, encouraging crop diversification, and monitoring groundwater levels to maintain soil health.</p> Signup and view all the answers

Outline a comprehensive framework for assessing the environmental impact of multi-purpose projects, including ecological, social, and economic considerations, and suggest how these assessments can be used to inform decision-making and project design.

<p>The framework should include baseline studies, impact prediction, mitigation measures, monitoring plans, and stakeholder consultations, covering ecological impacts (habitat loss), social impacts (displacement), and economic impacts (cost-benefit analysis). Assessments should inform project design and adaptive management.</p> Signup and view all the answers

Flashcards

Usable Freshwater

Only a small portion of the Earth's water is freshwater.

Hydrological Cycle

Water is constantly recycled through evaporation, precipitation, and flow.

Water Renewal

The continuous process by which water is replenished and purified.

Water Scarcity Prediction

Water scarcity is expected to affect many people in coming years.

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Main Freshwater Sources

Freshwater obtained from surface runoff and groundwater sources.

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Uneven Water Distribution

Spatial and temporal variations in precipitation cause uneven distribution of water resources.

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Water Availability Factors

The availability of water varies due to changes in seasonal and annual precipitation.

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Water Shortage Regions

Regions with low rainfall or prone to droughts suffer from lack of water.

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Water Scarcity

The lack of sufficient available water resources to meet water needs within a region.

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What is water scarcity?

The lack of sufficient water to meet demands.

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Sources of freshwater

Surface runoff and ground water, renewed by the hydrological cycle.

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What is the hydrological cycle?

A cycle that continuously renews and recharges water resources.

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Common water scarcity association

Many assume it's only in low rainfall or drought-prone areas.

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Causes of water availability differences

Spatial and temporal variations in seasonal and annual precipitation.

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Where is water scarcity common?

Regions with low rainfall or drought-prone areas.

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What water does in the hydrological cycle

The continuous movement of water on, above, and below the surface of the Earth.

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Water recharging

The process of replenishing water resources through natural processes.

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People affected by water scarcity by 2025

By 2025, approximately two billion people.

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Define water scarcity

The lack of sufficient water to meet the needs of an area.

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Fresh water source?

Surface runoff and ground water, continually renewed by the hydrological cycle.

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Causes of uneven water?

Spatial and temporal variations in precipitation.

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Water scarcity locations

Regions with low rainfall or drought-prone areas.

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What is water recharging?

The process where water resources are replenished.

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Affected by 2025?

Approximately two billion people.

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Scarcity association

Many assume it's only in low rainfall or drought-prone locations.

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Hydrologic movement

The continuous circulation of water in the Earth-atmosphere system.

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Water scarcity association

Water shortage is often linked to regions with low rainfall or frequent droughts.

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Causes of uneven water distribution

Differences in water availability arise from spatial and temporal variations in rainfall.

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Common water scarcity locations

Regions characterized by low rainfall amounts or frequent drought conditions.

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What primarily causes water scarcity?

The overuse and unequal distribution of water resources among different groups.

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How does population size relate to water scarcity?

A large population needs more water for both domestic use and food production, straining water resources.

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What is the effect of irrigation on water scarcity?

Expanding irrigated areas for agriculture during dry seasons leads to over-exploitation of water resources, especially groundwater.

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What sector is the largest consumer of water?

Agriculture that relies on irrigation is the largest consumer of water resources worldwide.

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What can reduce water usage in agriculture?

Reforms are needed in agriculture like developing drought-resistant crops to reduce water consumption.

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Water scarcity paradox

A situation where a region has enough water resources but faces scarcity due to pollution, poor management or unequal access.

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Drought-resistant crops benefits?

Developing drought-resistant crops minimizes water needs.

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Dry farming meaning

Employing water-saving techniques

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Unequal water access

When use of water creates unequal access causing scarcity.

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Over-exploitation can happen?

Excess water usage decreases other peoples access.

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Primary water scarcity causes

Occurs due to overuse, growing population, and unequal access among groups.

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Water needs for large populations

Meeting domestic needs and producing enough food for everyone.

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Irrigation impact on scarcity

Expands irrigated areas, especially during dry seasons using groundwater.

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Largest water consumer

The largest consumer of water globally.

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Reducing agriculture water use

Revolutionising agriculture to minimize water demand.

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Drought-resistant crops

Crops that need minimal water to thrive.

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Dry farming

Farming techniques adapted to arid environments.

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Population and water use

A growing population needs more water, expanding irrigated areas.

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Unequal water distribution

Where water use creates unequal access causing scarcity.

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Over-extraction of Groundwater

Drawing excessive water from underground sources to irrigate farms.

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Consequences of Over-extraction

Can lead to falling groundwater levels, impacting availability and food security.

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Post-Independence Industrialization

India's industrial growth after independence, including MNCs.

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Industry Water Use

Industries consume lots of water and need power, often from hydroelectric sources.

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Urbanization and Water Stress

Cities increasing water and energy needs, worsening water problems.

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Private Groundwater Pumping

Housing areas using their own devices to pump water, adding stress to resources.

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Sources of Water Pollution

Household, industrial, and agricultural wastes polluting water sources.

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Hazardous Water

Making water unsafe for people to use.

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Jal Jeevan Mission (JJM)

A Government of India initiative to provide potable piped water to rural households.

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Water resources over-exploitation

Overuse of water resources, leading to their reduction in cities.

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Atal Bhujal Yojana (Atal Jal)

A central government scheme improving ground water management through community participation.

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Behavioral changes in water management

Changing community behavior from water consumption to conservation.

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Ancient Hydraulic Structures

Structures like dams, reservoirs, and canals used since ancient times for water management.

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Sringaverapura Water System

Sophisticated water harvesting system near Allahabad in the 1st century B.C.

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Over-exploitation of Water

Activities that lead to the reduction of water resources.

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Mismanagement of Water Resources

Can lead to ecological crisis with profound impacts.

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Atal Jal's Aim

From consumption to conservation, promoting smart water use.

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Water Scarcity Aspects

Quantitative and Qualitative aspects considered when evaluating it.

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Traditional Water Management

Building dams from stone, rubble, reservoirs and canals for irrigation.

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Groundwater pumping

Installing personal wells/tube-wells by farmers.

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Groundwater overuse consequence

Can result to dropping water levels, impacting availability and food security.

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Post-Independence changes

India saw major industrial and city growth.

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Industrial water demand

Industries are big water users and need power.

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Urbanization impact

Cities use more water and power, making water problems worse.

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Private water devices

Homes use private devices to pump water.

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Water pollution sources

Water may be dirty from home/factory waste, chemicals, farm stuff.

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Hazardous water impacts

Makes water unsafe for people to use.

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Why conserve water?

To protect our health, food and jobs.

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Water Resource Mismanagement

Overuse and poor handling of water leading to resource depletion and ecological problems.

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Behavioral Changes in Water Use

Shifting community attitudes from high consumption to conservation-focused and efficient water use.

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Sringaverapura

A town near Allahabad that had an advanced water harvesting system in the 1st century B.C.

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Consequences of Water Mismanagement

May lead to ecological crisis and negatively impact lives.

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Aims of Atal Jal

Switching from high water consumption to smart and conservation-based methodologies.

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Aspects of Water Scarcity

Looks at both the amount and the quality of water resources available.

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Ancient Water Management

Construction of dams and canals from stone and rubble, to manage water for irrigation.

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Private wells/tube-wells

Farmers using their own water sources for irrigation.

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Falling groundwater levels

Lowering of water tables due to excessive withdrawal.

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Post-independent industrialisation

India's industrial growth post-independence.

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Multinational Corporations (MNCs)

Companies operating in multiple countries.

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Pressure on freshwater resources

Increased demand on water resources due to many factories.

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Hydroelectric power

Power generated using the energy of flowing water.

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Urban centres impact

Cities causing increasing strain on water and energy.

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Exploitation and mismanagement

Excessive use can make resources scarce and cause ecological problems.

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Groundwater pumping effects

Farmers use personal wells to water their farms, potentially causing water depletion.

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Falling groundwater impacts

Lower water levels with reduced water access and threats to food production.

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Post-Independence Growth

India went through huge factory and city growth after independence.

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Water Pollution

Waste, chemicals and fertilizers pollute water, making it dangerous.

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Over-exploitation Consequences

Depletion of fragile water resources and natural ecosystems due to overuse.

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Water Mismanagement results

Leads to resource depletion and ecological crisis with impacts on lives.

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Atal Jal Behavioral Change

Changing community behavior to prioritize conservation and efficient water use.

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Sringaverapura System

A town near Allahabad with an advanced water harvesting system in the 1st century B.C.

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Atal Jal Key Aspect

Focuses on bringing behavioural changes from consumption to conservation.

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Atal Jal Implementation

Implemented to address water stress at the Gram Panchayat level.

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Atal Jal Objective

Consumption to conservation: promoting smart water use through community participation.

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Multi-Purpose River Projects

Water projects that combine various benefits like irrigation, power generation, and flood control.

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Traditional Dam Purpose

Dams impound rivers and rainwater for later use.

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Multi-Purpose Projects

Projects integrating multiple water uses like irrigation, power, and flood control.

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Bhakra-Nangal Project Uses

Generating electricity using water power and irrigating fields.

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Hirakud Project

Conserving water and managing floods.

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Dams' role in India

Dams integrate agriculture, village economy, industrialisation and urban economy.

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Modern dam uses

Electricity generation, water supply, flood control, recreation, navigation, and fish breeding.

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Hirakud project integration

Integrates conservation of water with flood control.

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Dams traditionally

Traditional method to impound rivers and rainwater

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Today dams are...

For irrigation, electricity, domestic and industry water supply, flood control, recreation, navigation and fish breeding

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Dams integrate

Integrates development of agriculture and the village economy with rapid industrialisation and growth of urban economy.

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Ganga flood water harvesting

Ancient system diverting Ganga floodwater for irrigation.

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Chandragupta Maurya's Water Works

Ruler who oversaw extensive building of water management systems.

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Ancient Irrigation Sites

States with evidence of advanced ancient irrigation systems.

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Bhopal Lake

One of the largest artificial lakes built in the 11th century.

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Hauz Khas Tank

Tank constructed in Delhi to supply water to Siri Fort.

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Definition of a Dam

Barrier obstructing water flow, creating a reservoir.

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Dam Spillway

Section of a dam for controlled water release.

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Dam Classification

Classification based on structure, material, and design.

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Types of Dams

Categories based on the structure, material used, and height.

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Harvesting Systems

Ancient systems diverting floodwater for agriculture.

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Ancient Irrigation

Dams, lakes, and sophisticated systems built during Chandragupta Maurya's reign.

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Irrigation Evidence

Evidences found in Kalinga, Nagarjunakonda, Bennur, Kolhapur indicated sophisticated systems

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Dam Definition

Barrier obstructing/directing flow, often creating a reservoir.

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Spillway

Area where water flows over or through.

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Dam Types

Timber, embankment, or masonry.

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Traditional Dams

Dams built traditionally to hold back rivers and rainwater for irrigation.

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Modern Dams

These are structures used for electricity generation, water supply, irrigation, and flood control.

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Purposes of Dams

Dams control floods, provide irrigation, generate electricity, and support domestic and industrial uses.

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Bhakra-Nangal Project

The Bhakra-Nangal project uses water for power and irrigation.

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Temples of Modern India

Jawaharlal Nehru's description of dams due to their integration of agriculture, village economy, industrialization, and urban growth.

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Evolution of Dam Purposes

Originally for irrigation; now for electricity, water supply, flood control and recreation

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Dams role

Integrating development with rapid industrialisation & urban growth.

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Water Supply

Dams are used to supply water for homes and industries.

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What is a Dam?

A barrier obstructing water flow, often creating a reservoir.

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Spillway (Weir)

A section of a dam where water flows, either constantly or sometimes.

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Types of Dams (Structure)

Timber, embankment, or masonry.

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Ancient Water Harvesting

Harvesting flood water from the Ganga River.

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Mauryan Irrigation

Dams, lakes, and irrigation systems were extensively built.

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What are Dams?

Dams built to impound rivers and rainwater for irrigation and other uses.

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Bhakra – Nangal project water

Used for electricity generation and irrigation

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Today, dams are built for?

Dams are not just for irrigation

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Dams were traditionally built to?

To impound rivers and rainwater that could be used later to irrigate agricultural fields.

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Dams are used for

Irrigation, electricity generation, water supply for domestic and industrial uses, flood control, recreation, inland navigation and fish breeding.

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Dam-induced Earthquakes

Multi-purpose dam projects sometimes cause earthquakes by changing underground pressure.

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Water-borne Diseases

These are diseases spread by water, often due to unsanitary conditions related to large water projects.

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Salinization of Soil

Excessive water use can cause build-up of salts in the soil, reducing fertility.

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Pradhan Mantri Krishi Sinchaee Yojana

A government program ensuring access to protective irrigation for all agricultural farms.

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Reservoir Sedimentation

Deposits of eroded soil in reservoirs, reducing their water storage capacity and usefulness.

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Cropping Pattern Changes

Shifting from growing food crops to commercial crops that need more water.

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Irrigation

Using water from rivers or canals to provide water to land.

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Ecological Consequences of Irrigation

The use of water for intensive crop and commercial production negatively impacting the environment.

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Salinisation

Decrease in soil fertility due to the build-up of salts.

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Drought-Prone Areas

Areas prone to persistent dryness, making water management crucial.

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Multi-Purpose Project Issues

Projects and large dams face scrutiny due to environmental and social consequences.

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Impact of River Damming

Dams change river flow, leading to sediment build-up, harming aquatic habitats.

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River Fragmentation

Dams obstruct migration of aquatic species, particularly for breeding.

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Reservoir Submergence Effects

Reservoirs flood vegetation and soil, causing decomposition and environmental changes.

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Krishi Sinchaee Yojana Goals

Aims to improve water access, efficiency, and conservation in agriculture.

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Krishi Sinchaee Yojana Components

Ensuring water for every farm, improving water efficiency, and promoting conservation.

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Krishna-Godavari Dispute

A dispute between states over water diversion impacting downstream flow.

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Koyna Diversion Issue

Involves Maharashtra diverting water, reducing flow to Karnataka and Andhra Pradesh.

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Sardar Sarovar Project

A large water resource project spanning four states, providing irrigation and water.

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Sardar Sarovar Project Benefits

Provides irrigation to 18.45 lakh hectares, covering 3112 villages in Gujarat.

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Dam Scrutiny

Projects involving dams face scrutiny due to their impact on river flow and habitats.

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Sediment Flow

Dams interrupt the natural sediment flow of rivers, causing sedimentation issues.

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Aquatic Migration

Dams hinder the migration of aquatic species, especially for spawning.

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Reservoir Impact

Reservoirs submerge existing vegetation, leading to decomposition and environmental changes.

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Sardar Sarovar Purpose

Aims to provide irrigation to drought-prone and desert areas.

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Pradhan Mantri Krishi Sinchaee Yojana Objectives

Aims to enhance water access, expand irrigation, and improve water use efficiency.

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Sinchaee Yojana Goals

Seeks to reduce water wastage and promote sustainable water conservation practices.

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Koyna Diversion Impact

The diversion of more water at Koyna by Maharashtra government affected downstream flow.

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Water Intensive Cropping

Shift in farming toward crops needing lots of water, leading to soil issues.

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Sedimentation-Triggered Floods

Dams causing floods due to built-up sediment in reservoirs.

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Silt Deprivation

Loss of silt in floodplains, reducing natural soil enrichment.

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Multi-purpose Project Impacts

Projects causing earthquakes, diseases, and pollution from water use.

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Drought Proofing

Assurance of water supply that can eliminate the risk of drought.

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Commercial Crops

Changing from traditional crops to commercial crops that need more investment.

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Dam Impacts on Rivers

Large dams can alter the natural river flow, affecting sediment and aquatic habitats.

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Reservoir Submergence

Reservoirs submerge vegetation, leading to decomposition and environmental changes.

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Har Khet Ko Pani

Increasing water availability in farms and expanding the irrigated areas.

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Per Drop More Crop

Improving water use to reduce wastage and increase crop production.

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Water Conservation Practices

Sustainable methods to protect water resources for future use.

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Inter-State Water Disputes

Disputes between states over river water sharing, impacting water distribution.

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Dam-induced flooding

Multi-purpose dam projects have triggered floods due to sedimentation reducing reservoir capacity.

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Soil Salinisation

Excessive irrigation leads to salt accumulation in the soil, reducing fertility.

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Induced Earthquakes

The use of large dams can sometimes cause induced seismicity in surrounding regions.

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Pollution (Water)

Excessive water use contributing to increased water pollution.

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Sedimentation Impact

Large dams can cause build-up of sediment that reduces the natural fertilizer from reaching flood plains.

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Sedimentation in Reservoirs

Water reservoirs losing capacity due to the accumulation of sediments.

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Dam-Induced Floods

Dams causing floods due to decreased water storage from sediment buildup.

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Extensive Soil Erosion

Loss of the fertile layer caused by heavy rainfall and flooding.

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River Regulation Impacts

Building dams and controlling rivers that can change the natural flow, impact sediment distribution, and harm aquatic habitats.

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Dams and Fish Migration

Large dams block fish migration, crucial for breeding.

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Large Dams

Large barriers constructed across rivers to control water flow and create reservoirs.

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Impact of Regulating Rivers

Reduces natural flow, increases sedimentation, and degrades aquatic habitats.

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Dams and Aquatic Migration

They obstruct the movement of aquatic species, especially for breeding.

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Sardar Sarovar Dam

A large dam built on the Narmada River, benefiting multiple states.

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Koyna Project Controversy

A project in Maharashtra causing reduced downstream flow.

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Sardar Sarovar Project Goals

Aims to provide irrigation facilities, especially in drought-prone areas.

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Barmer and Jalore

Districts in Rajasthan that benefit from irrigation projects.

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Cropping Pattern Shift

Change in agriculture where farmers grow crops needing more water.

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Sedimentation-Induced Floods

Dams causing floods due to sediment accumulation, reducing water capacity.

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Devastating effects of floods

Loss life and property, as well as the washing away of topsoil.

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Soil Erosion

The gradual wearing away of soil by water, wind or other processes.

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Drought proof areas

Areas made drought-resistant due to consistent water supply from irrigation projects.

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Dam-Triggered Floods

Floods triggered by dams due to sediment accumulation in the reservoir.

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Land Degradation

A decline in the quality of land, often due to salinization and soil erosion.

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Multi-purpose project concerns

Projects involving dams face scrutiny due to environmental and social impacts.

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River regulation effects

Regulating rivers changes natural flow, leading to sediment issues and habitat damage.

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Impact of dams on aquatic life

Dams obstruct fish migration which is crucial for spawning.

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Reservoir inundation effects

Reservoirs can submerge vegetation, leading to decomposition and environmental changes.

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Koyna water diversion issue

Diversion of water at Koyna by Maharashtra government reduces downstream flow in other states.

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Sardar Sarovar Project irrigation benefits

Sardar Sarovar Project targets irrigating 18.45 lakh hectares, covering 3112 villages in 15 districts of Gujarat.

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Study Notes

  • Dams were traditionally built to impound rivers and rainwater for agricultural irrigation

  • Dams serve purposes beyond irrigation, including electricity generation, water supply for domestic and industrial uses, flood control, recreation, inland navigation, and fish breeding

  • Dams are now referred to as multi-purpose projects

  • The Sutluj-Beas river basin's Bhakra-Nangal project provides both hydel power and irrigation

  • The Hirakud project in the Mahanadi basin combines water conservation and flood control

  • Multi-purpose projects after Independence aimed to drive national development through integrated water resource management

  • A dam is a barrier obstructing, directing, or retarding water flow, often creating a reservoir, lake, or impoundment

  • "Dam" refers to the reservoir, not the structure

  • Most dams possess a spillway or weir for controlled water flow

  • Dams are classified by structure, purpose, and height

  • Structural classifications include timber, embankment, and masonry dams

  • Height classifications include large, major, low, medium, and high dams

  • Jawaharlal Nehru called dams the "temples of modern India" due to their role in integrating agriculture, rural economies, industrialisation, and urban growth

  • Post-independent India saw industrialisation & urbanisation, creating many opportunities

  • Large factories are ordinary, like MNCs, but makes matters worse by exhausting freshwater

  • Industries use water and power, mostly from hydroelectric sources

  • Multiplying urban centers increased problems and made water and energy requirements worse

  • Groundwater pumping helps meet water needs in housing areas

  • Fragile water resources in cities are over-exploited and getting depleted

Atal Bhujal Yojana (Atal Jal)

  • Implemented in 8220 water-stressed Gram Panchayats across 229 blocks/talukas in 80 districts of seven states: Gujarat, Haryana, Karnataka, Madhya Pradesh, Maharashtra, Rajasthan, & Uttar Pradesh
  • The selected states account for about 37% of India's water-stressed blocks
  • A key goal is behavioral changes towards conservation and smart water management
  • Water scarcity can be about water quality
  • Polluted water from domestic/industrial waste, chemicals, pesticides & fertilizers impacts human use
  • The Indian Government prioritizes bettering life via Jal Jeevan Mission (JJM)

Jal Jeevan Mission (JJM)

  • Aims to supply every rural household with 55 litres of piped water per capita daily (long-term) , ensuring tap connection functionality

  • Conservation of water resources is needed to safeguard from health hazards, ensure food security/livelihoods/ productive actions & stop natural ecosystem degradation

  • Over-exploiting/mismanaging water resources will impoverish and harm our lives

  • Ancient India built advanced hydraulic structures like stone dams, reservoirs, embankments and canals for irrigation

Hydraulic Structures in Ancient India

  • Sringaverapura near Allahabad had superior water harvesting in the 1st century B.C.

  • Water scarcity is mostly caused by over-exploitation, overuse, and unequal access to water among different social groups

  • Water scarcity can occur in areas/regions that have ample water

  • Water scarcity can be a result of large/ growing population

  • A large population requires more water domestically and to produce more food

  • To assist higher food-grain prodution, water resources are being over-exploited to expand irrigated areas for dry-season agriculture

  • Farmers water use must be revolutionize by developing drought resistant crops and dry farming techniques

  • Ground water levels may fall, effecting water availability and food security to people

  • Irrigated agriculture is the largest consumer of water.

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