Influence of Three Gorges Reservoir on the Upper and Lower Reaches of the Yangtze River

1. will lead to upstream sediment deposition, affect the flood storage capacity of the river channel, and may lead to the scrapping of upstream ports;

2. Clear water washes the downstream riverbed, causing the riverbed to cut down and the bank to collapse, which will cause Dongting Lake to shrink or even dry up;

3. The function of downstream land reclamation disappeared, resulting in a large number of fertile fields can not be continued.