What impact will the reservoir construction have on the natural geographical environment?

Advantages: regulating river runoff, reducing floods and droughts, and ensuring water supply.

It can bring into play the comprehensive benefits of flood control, power generation, aquaculture and tourism.

Improve local microclimate and increase air humidity.

Disadvantages:

1: Destroy and flood a large number of precious farmland land, as well as various customs, cultures and cultural relics buildings, resulting in high immigration costs.

2. Destroy the local ecological environment, prevent the migration of migratory animals, reduce biodiversity, and possibly make some rare species extinct.

3. The transport of sediments to the ocean is reduced, which leads to the shrinkage of the delta and the intensification of transgression.

4. Reducing the amount of water downstream will make it difficult to use water downstream.

5. The construction process of the reservoir itself and the sufficient water storage after completion have caused extra pressure on the local geographical structure, which may lead to various geological disasters, such as earthquakes.