SEDIMENT LOAD AND ITS INFLUENCE ON CHANNEL PROCESSES OF SOME LARGE RIVERS IN RUSSIA AND CHINA

查看全文 作　　者：LIU Shuguang,CHALOV R.S, WU Dandan, LI Congxian Postdoctor, Research Fellow, Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China & Researcher, State Key Laboratory of Estuarine and Coastal Research, Shanghai 200062,China Professo 出　　处：《International Journal of Sediment Research》索引2000年第15卷第3期,共14页 基　　金：The Project Sponsored by the Scientific Research Foundation for the Returned Overseas Chinese Scholars, StateEducation Ministr 摘　　要：The sediment load, particle size distribution, and ratio between suspended and bed load components. are analyzed for some large rivers in Russia and China. The relationship is shown between the longitudinal changes in sediment load and the directions of vertical river channel deformation, i.e. river incision or sedimentation, which in turn are supported by results of analysis of long-term stage discharge curves. It seems that branching channels are common for the rivers, except where the sediment load is great (such as in the Yellow River). Conditions for forming different types of river channels are defined with the help of diagrams showing the water discharge-slope and slopesediment concentration relationships. 关 键 词：SEDIMENT LOAD CHANNEL PROCESSES RIVER pattern RUSSIA RIVER