Advantages and disadvantages of Three Gorges Hydropower Station on ecological environment

Benefit of Three Gorges Hydropower Station to ecological environment;

It has comprehensive benefits such as flood control, irrigation, power generation, water supply, fishery, shipping and tourism. Dams are necessary for developing economy and improving people's living conditions, and developing hydropower is conducive to reducing greenhouse gases and sustainable utilization of energy.

Adverse effects of Three Gorges Hydropower Station on ecological environment;

Flooding cultivated land and mineral resources, and flooding forests, grasslands and wildlife habitats; Flooding natural landscapes and cultural relics; Causing a large number of involuntary immigrants; Blocking rivers, affecting shipping and fish migration; Affect terrestrial and aquatic ecosystems and destroy biodiversity; It hinders the free operation of the river, even causes the river to cut off and damages the healthy life of the river; Water storage in dams causes changes in water temperature and water quality, breeds mosquitoes and flies, and spreads diseases; The dam intercepted the nutrients in the flood, resulting in malnutrition in the lower reaches of the river and barren land in the floodplain, forming a "hungry plain" and a "hungry seaside"; The dam intercepts sediment, which not only silts up the storage capacity, but also causes downstream river scouring and estuary shoreline shrinkage; The dam caused the downstream river to cut off and the ecological environment deteriorated; Dam construction breeds corruption and bribery; Excavation, waste slag, sewage and noise in the process of dam construction pollute the environment and destroy vegetation; Dams can cause landslides, collapses and even earthquakes.