Question

Explain the advantages and disadvantages of multi-purpose river projects.

Hint:

Multi-purpose river projects support irrigation, power generation, and flood control, but may cause environmental and social challenges.

Answer 1

Concept: Multi-purpose river projects are large-scale river valley development projects designed to serve multiple purposes such as irrigation, flood control, hydroelectric power generation, and water supply. These projects aim to manage water resources efficiently for economic development.
Step 1: of multi-purpose river projects.

• Irrigation: They provide water for agriculture, helping farmers grow crops even in dry seasons.
• Hydroelectric power: Dams generate electricity which supports industries and households.
• Flood control: Large dams help regulate river flow and reduce the risk of floods.
• Water supply: They provide water for domestic and industrial purposes.
• Navigation and fisheries: Some projects support inland water transport and promote fish farming.

Step 2: of multi-purpose river projects.

• Displacement of people: Large dams often lead to the displacement of local communities and loss of livelihoods.
• Environmental impact: Forests and wildlife habitats may be destroyed due to submergence of land.
• Sedimentation: Accumulation of sediments in reservoirs can reduce their storage capacity over time.
• Water disputes: Conflicts may arise between states over the sharing of river water.

Final Answer:
Multi-purpose river projects provide benefits such as irrigation, electricity generation, flood control, and water supply, but they also have disadvantages including displacement of people, environmental damage, and interstate water conflicts.