中文摘要：

水库建设以满足人类日益增长的水资源及其利用的要求仍是当今世界,特别是发展中国家在水利建设中的一项重要任务。建坝改变了上下游水流边界条件,导致水沙输移变化,同时也触发了河床形态发生相应的调整。自从20世纪30年代全球大规模修坝后,关于此课题的研究就层出不穷。本文就此研究主题对国内外研究成果进行梳理与总结,简要综述水库下游水流挟沙变异以及河床形态演变的研究历史与现状,旨在对该领域的研究进展进行全面的归纳与总结。

英文摘要：

Reservoir building to meet human＇s growing need for water resources utilization is still an important mission in the water conservancy construction for the present world,especially for the developing countries.However,damming changes the condition of stream flow boundary as well as water and sediment transport,which trigger the corresponding adjustment of channel morphology.Large-scale dams have been built since the 1930s,associated with more and more researches focusing on the their impacts of dams building on downstream discharge regime,sediment decline and geomorphologic change.This paper devotes to emphasize rearrangement and summary on the global research progress of the above issues.A brief literature review on the historical and present situation for the reservoir-induced downstream changes of water,sediment and channel morphology is reported in this paper,aiming to conclude and sum up abundant research results in this field.