Influence of dam construction on upstream and downstream

Building a dam in the upstream, with the function of hydropower generation, will increase the country's energy sources, intensive resources, save power generation costs, make up for power generation from fuel ore and reduce atmospheric environmental pollution. After the completion of the dam, a large amount of sediment will be intercepted in the upstream, which will reduce the sediment deposition in the downstream river and bring favorable conditions for shipping. After the completion of the dam, it will form a high gorge and a flat lake, which can build new tourist attractions, increase the income of ordinary people, and increase and extend the distance of inland navigation channels.

Dam construction will flood a large number of fertile fields, forests and ancient books in the upper reaches, and people will move, forming new immigrants, which will bring certain population pressure to the resettlement area.

Dam construction can regulate the runoff of downstream rivers, rationally allocate water sources, cooperate with reasonable irrigation projects, resist drought disasters, ensure agricultural production, and reduce floods caused by short-term rainfall.

The construction of the upstream dam has always been a sword for the residents along the river. Once the upstream dam breaks due to war or address disaster, the disaster caused by massive water storage is huge, even unimaginable.