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CH 2: Catchment and river management

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RaptOganesson
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58 Questions

What does river management involve?

Strategic planning, development, and preservation of water resources within a river basin

Why is proper river management important in regions like South Africa?

To ensure availability of water for future generations

What can lead to poor river management?

Deforestation and unregulated industrial discharge

How do human activities affect drainage basins negatively?

Overgrazing leading to soil erosion and increased sedimentation in rivers

What is a common consequence of river pollution from industrial waste and agricultural runoff?

Loss of biodiversity and eutrophication

What is one negative impact of deforestation on the land?

Increase in runoff and sedimentation

Which strategy is NOT mentioned for effective catchment area management?

Construction of more settlements

What role do education and legislation play in promoting sustainable practices?

Crucial role in promoting sustainable practices

Which activity is recommended for better river management?

Implementing sustainable farming practices

How does sustainable river management impact the economy?

Improves water availability for various sectors

What is the primary goal of river management?

Ensuring sustainable use of water resources

Why does poor river management occur?

Deforestation and altered water flow

What is a significant consequence of overgrazing in drainage basins?

Elevated sedimentation in rivers due to soil erosion

How do human activities primarily impact river systems through urban expansion?

By contributing to the degradation of river systems

What is a common consequence of untreated sewage and agricultural runoff in rivers?

Biodiversity loss and eutrophication

What is a key strategy for managing catchment areas to enhance water conservation and river flow patterns?

Pollution control

How does the Working for Water program in South Africa contribute to river management?

Removing invasive alien plants

Why is sustainable river management beneficial for the economy?

It ensures water availability for various sectors

What role does education play in promoting sustainable river management practices?

Influencing community engagement

How do activities for better river management help address pollution issues?

By implementing sustainable farming practices

What is the primary focus of river management?

Preserving the ecological balance

Which factor does NOT contribute to poor river management?

Regulated industrial discharge

What is a common consequence of urban expansion without proper planning on river systems?

Degradation of river systems

How does overgrazing impact drainage basins?

Leads to biodiversity loss

What is a significant effect of river pollution on biodiversity?

Loss of biodiversity due to eutrophication

What is a key component of the South African River Management Strategy?

Removing invasive alien plants

How does the Working for Water program benefit both the environment and society?

By providing jobs and improving water quality

How does forestation contribute to effective catchment area management?

By reducing water runoff and sedimentation

What does poor river management negatively impact?

Tourism, agriculture, and water-intensive industries

What is the primary goal of river management?

To ensure the sustainable use of rivers for various purposes

What leads to increased sedimentation in rivers within drainage basins?

Overgrazing causing soil erosion

Why is it crucial to manage drainage basins and catchment areas properly?

To prevent natural habitat destruction

What is a consequence of poor river management resulting from inadequate sewage treatment?

Increased pollution and habitat destruction

How does urban expansion without proper planning degrade river systems?

By contributing to the degradation of river systems

Which activity significantly affects drainage basins by leading to eutrophication?

Agricultural runoff

How do human activities negatively impact drainage basins when it comes to river pollution?

By causing eutrophication and biodiversity loss

What is a significant effect of overgrazing on soil within drainage basins?

Increased eutrophication levels

Why is it important to consider both socio-economic and environmental factors in river management?

To ensure the sustainable use of rivers while maintaining ecological balance

What contributes to habitat destruction and altered water flow in rivers due to poor management practices?

Overgrazing and unregulated urban expansion

What is a multifaceted approach required for in effective catchment and river management?

Community engagement, strict regulation, and ongoing research

Which activity is NOT recommended for better river management according to the text?

Increasing industrial waste disposal

What is a key focus of the Working for Water program in South Africa?

Removing invasive alien plants for water conservation and river restoration

How does deforestation affect the land's ability to absorb water?

It decreases the land's ability to absorb water

What is a significant impact of poor river management on the economy?

Affecting agriculture, tourism, and water-intensive industries

Which factor contributes to increased river pollution and altered flow patterns due to human settlements?

Increased pollution from settlements

What is one key strategy mentioned for effective catchment area management?

Promoting sustainable agricultural practices

How does sustainable river management benefit the economy?

'Ensuring water availability for various sectors and preserving natural beauty,' as mentioned in the text

'Activities for better river management' include which of the following?

'Identifying main pollution sources'

What is the primary purpose of river management?

Preserving natural habitats

How does urban expansion negatively impact river systems?

It contributes to the degradation of river systems

What is a common consequence of overgrazing in drainage basins?

Higher levels of soil erosion

Why is proper management of drainage basins crucial in regions like South Africa?

Due to limited water resources

What contributes to habitat destruction and altered water flow in rivers due to poor river management practices?

Unregulated industrial discharge

What is a key aspect of the South African Working for Water program?

Focusing on enhancing water conservation through afforestation

How does deforestation impact the land's ability to manage water?

Increases runoff and sedimentation

Which of the following is NOT a strategy for effective catchment area management?

Promoting sewage treatment facilities

Why do education and legislation play crucial roles in promoting sustainable river management?

To ensure proper community engagement and adherence to regulations

What is a significant negative impact of water pollution on the economy?

Affecting agriculture, tourism, and water-intensive industries

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