安徽省长江水沙及河势变化分析

Analysis on Flow and Sediment&River Regime Variation in Anhui Section of Yangtze River

长江安徽段位于长江下游,河道全长416km。2003年三峡工程蓄水运行以来,长江安徽段水沙变化明显,局部河段河势变化较为剧烈。本文以大通水文站实测统计资料,分析了三峡工程蓄水运行前后安徽长江来水来沙特征及近期河势变化,提出河势控制建议。

Anhui section of Yangtze River is located at the lower reaches of the river.Its length is 416km.Since Three Gorges Project was put into operation in 2003,the flow and sediment conditions along Anhui section of Yangtze River have been changed significantly.The change of river regime in some reaches is more severe.In this paper,the author,with the help of statistical data of Datong hydrological station,analyzed its characteristics in incoming water and incoming sediment from the upstream of Yangtze River and the recent changes in river regime before Three Gorges Project was built and after the project had been put into working,and proposed suggestions about river regime control.