长江中下游河床地貌演变与水资源保护的预测研究

将水利工程对河床地貌演变及其对洪水变化的影响进行预测 ,结果表明 ,洞庭湖区洪水位下降 ,但河道淤塞加快 ;鄱阳湖水位年变幅小 ,泥沙淤积增多 ;太湖流域的排洪和排污依然困难。

Prediction of riverbed physiognomy evolution and water resources protection for the middle and lower Yangtze River

Re-discussed are the impacts of hydro projects on the riverbed evolution of the middle and lower Yangtze River and the co-action of the above two factors on the frequent floods occurring in the Yantze River Basin. A prediction of the impacts shows that the water level of the Dongtinghu Lake decreases during the flood season, while siltation in the river channel increases, that the variation of the water level of the Poyanghu Lake is small, while sediment deposition in the lake increases, and that the discharge of flood and pollutants from the Taihu Lake is still difficult.