Environmental Science
8 years ago

Three Gorges Dam leads to significant decline in downstream sediment.

Journal of Water Resources and Water Engineering
Analysis of influence of large-scale water conservancy project on variation characteristics of water and sediment in middle and lower reaches of Yangtze River
Han Bowe

Paper Summary

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The Three Gorges Dam affects the water and sediment flow in the Yangtze River. Runoff and sediment discharge in downstream areas have changed since the dam was built. The amount of sediment has decreased significantly since the 1980s, especially after the dam was completed in 2003. The impact of the dam on downstream areas decreases as you move further away from it. Water and sediment changes are more noticeable upstream compared to downstream areas.