Question

We lose forests while constructing the dams. How to cope
with this loss?​

Answer 1

Answer:

As a long-term measure, watershed management involving soil conservation and catchment restoration can reduce erosion and sediment inflow to the reservoir. Operational options, such as flushing, sluicing, dredging, and hydro suctioning can reduce sediment deposit in the reservoir.

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Answer 2

Answer:

• Dams around the world provide critical water supplies and hydropower to growing communities and hundreds of new dams are proposed for developing economies. Though viewed as sources of potential green energy, their construction also poses a significant environmental cost.
• As a long-term measure, watershed management involving soil conservation and catchment restoration can reduce erosion and sediment inflow to the reservoir.
• Operational options, such as flushing, sluicing, dredging, and hydro suctioning can reduce sediment deposit in the reservoir. In response to the consultant's guidance, the government and their consultants came up with a design that incorporated catchment management, small dams called check dam to catch sediment, and newly-added bottom outlets to allow sluicing and flushing.
• The new design also included business opportunities for local people to sell the captured sediment as construction materials.

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