Fluvial Processes in the Meandering Reach of the Lower Wei River During the Course of Degradation  

作　　者：Xia, Junqiang  Wang, Guangqian  Wu, Baosheng 

机构地区：[1] Dept. of Hydraulic Eng., Tsinghua Univ., Beijing 100084, China

出　　处：《四川大学学报（工程科学版）》2005年第S1期46-51,共6页Journal of Sichuan University (Engineering Science Edition)

基　　金：Supported by the Natural Science Foundation of China (50409002)by the Science Fund for Creative Research Groups of the Natural Science Foundation of China (50221903).

摘　　要：This paper presents an analysis of the changes of the longitudinal and lateral profiles in the meander- ing reach of the Lower Wei River over the period from October 1973 to October 1976 during the course of degradation.Analysis results indicated that retrogressive erosion and subsequent downstream erosion occurred in the reach due to the lowering in the Tongguan elevation and the inflowing water carrying low sediment con- centrations.At the end of the degradation,the main channel widths of the majority ...This paper presents an analysis of the changes of the longitudinal and lateral profiles in the meander- ing reach of the Lower Wei River over the period from October 1973 to October 1976 during the course of degradation.Analysis results indicated that retrogressive erosion and subsequent downstream erosion occurred in the reach due to the lowering in the Tongguan elevation and the inflowing water carrying low sediment con- centrations.At the end of the degradation,the main channel widths of the majority of ...

关 键 词：the Lower Wei River fluvial processes batse level of erosion channel widening channel undercut 

分 类 号：P333[天文地球—水文科学]