CH 2: Catchment and river management
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Questions and Answers

What does river management involve?

  • Ignoring the socio-economic impact
  • Only considering environmental factors
  • No strategic planning involved
  • Strategic planning, development, and preservation of water resources within a river basin (correct)

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

  • To increase flooding occurrences
  • To have unregulated industrial discharge
  • To ensure availability of water for future generations (correct)
  • To deplete water resources faster

What can lead to poor river management?

  • Adequate agricultural practices
  • Deforestation and unregulated industrial discharge (correct)
  • Regulated industrial discharge
  • Proper sewage treatment

How do human activities affect drainage basins negatively?

<p>Overgrazing leading to soil erosion and increased sedimentation in rivers (C)</p> Signup and view all the answers

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

<p>Loss of biodiversity and eutrophication (B)</p> Signup and view all the answers

What is one negative impact of deforestation on the land?

<p>Increase in runoff and sedimentation (C)</p> Signup and view all the answers

Which strategy is NOT mentioned for effective catchment area management?

<p>Construction of more settlements (A)</p> Signup and view all the answers

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

<p>Crucial role in promoting sustainable practices (C)</p> Signup and view all the answers

Which activity is recommended for better river management?

<p>Implementing sustainable farming practices (A)</p> Signup and view all the answers

How does sustainable river management impact the economy?

<p>Improves water availability for various sectors (A)</p> Signup and view all the answers

What is the primary goal of river management?

<p>Ensuring sustainable use of water resources (B)</p> Signup and view all the answers

Why does poor river management occur?

<p>Deforestation and altered water flow (D)</p> Signup and view all the answers

What is a significant consequence of overgrazing in drainage basins?

<p>Elevated sedimentation in rivers due to soil erosion (B)</p> Signup and view all the answers

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

<p>By contributing to the degradation of river systems (B)</p> Signup and view all the answers

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

<p>Biodiversity loss and eutrophication (A)</p> Signup and view all the answers

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

<p>Pollution control (B)</p> Signup and view all the answers

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

<p>Removing invasive alien plants (C)</p> Signup and view all the answers

Why is sustainable river management beneficial for the economy?

<p>It ensures water availability for various sectors (B)</p> Signup and view all the answers

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

<p>Influencing community engagement (B)</p> Signup and view all the answers

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

<p>By implementing sustainable farming practices (A)</p> Signup and view all the answers

What is the primary focus of river management?

<p>Preserving the ecological balance (C)</p> Signup and view all the answers

Which factor does NOT contribute to poor river management?

<p>Regulated industrial discharge (B)</p> Signup and view all the answers

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

<p>Degradation of river systems (D)</p> Signup and view all the answers

How does overgrazing impact drainage basins?

<p>Leads to biodiversity loss (D)</p> Signup and view all the answers

What is a significant effect of river pollution on biodiversity?

<p>Loss of biodiversity due to eutrophication (C)</p> Signup and view all the answers

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

<p>Removing invasive alien plants (C)</p> Signup and view all the answers

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

<p>By providing jobs and improving water quality (C)</p> Signup and view all the answers

How does forestation contribute to effective catchment area management?

<p>By reducing water runoff and sedimentation (C)</p> Signup and view all the answers

What does poor river management negatively impact?

<p>Tourism, agriculture, and water-intensive industries (D)</p> Signup and view all the answers

What is the primary goal of river management?

<p>To ensure the sustainable use of rivers for various purposes (A)</p> Signup and view all the answers

What leads to increased sedimentation in rivers within drainage basins?

<p>Overgrazing causing soil erosion (B)</p> Signup and view all the answers

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

<p>To prevent natural habitat destruction (C)</p> Signup and view all the answers

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

<p>Increased pollution and habitat destruction (A)</p> Signup and view all the answers

How does urban expansion without proper planning degrade river systems?

<p>By contributing to the degradation of river systems (C)</p> Signup and view all the answers

Which activity significantly affects drainage basins by leading to eutrophication?

<p>Agricultural runoff (A)</p> Signup and view all the answers

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

<p>By causing eutrophication and biodiversity loss (D)</p> Signup and view all the answers

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

<p>Increased eutrophication levels (C)</p> Signup and view all the answers

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

<p>To ensure the sustainable use of rivers while maintaining ecological balance (C)</p> Signup and view all the answers

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

<p>Overgrazing and unregulated urban expansion (C)</p> Signup and view all the answers

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

<p>Community engagement, strict regulation, and ongoing research (A)</p> Signup and view all the answers

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

<p>Increasing industrial waste disposal (D)</p> Signup and view all the answers

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

<p>Removing invasive alien plants for water conservation and river restoration (C)</p> Signup and view all the answers

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

<p>It decreases the land's ability to absorb water (A)</p> Signup and view all the answers

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

<p>Affecting agriculture, tourism, and water-intensive industries (D)</p> Signup and view all the answers

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

<p>Increased pollution from settlements (A)</p> Signup and view all the answers

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

<p>Promoting sustainable agricultural practices (B)</p> Signup and view all the answers

How does sustainable river management benefit the economy?

<p>'Ensuring water availability for various sectors and preserving natural beauty,' as mentioned in the text (A)</p> Signup and view all the answers

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

<p>'Identifying main pollution sources' (A)</p> Signup and view all the answers

What is the primary purpose of river management?

<p>Preserving natural habitats (A)</p> Signup and view all the answers

How does urban expansion negatively impact river systems?

<p>It contributes to the degradation of river systems (C)</p> Signup and view all the answers

What is a common consequence of overgrazing in drainage basins?

<p>Higher levels of soil erosion (B)</p> Signup and view all the answers

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

<p>Due to limited water resources (B)</p> Signup and view all the answers

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

<p>Unregulated industrial discharge (B)</p> Signup and view all the answers

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

<p>Focusing on enhancing water conservation through afforestation (C)</p> Signup and view all the answers

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

<p>Increases runoff and sedimentation (A)</p> Signup and view all the answers

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

<p>Promoting sewage treatment facilities (B)</p> Signup and view all the answers

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

<p>To ensure proper community engagement and adherence to regulations (D)</p> Signup and view all the answers

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

<p>Affecting agriculture, tourism, and water-intensive industries (D)</p> Signup and view all the answers

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