美国五大流域减沙效果分析  

An Analysis of Effects of Sediment Reduction in 5 Large River Basins in USA

作　　者：刘孝盈 吴保生[2] 

机构地区：[1]国际泥沙研究培训中心,北京100044 [2]清华大学河流海洋研究所,北京100084

出　　处：《西安理工大学学报》2008年第4期462-466,共5页Journal of Xi'an University of Technology

基　　金："十五"科研基金资助项目(1-105-3);水利部"948"基金资助项目(200833);中国水利科学研究院科研专项基金资助项目(2007-2008)

摘　　要：选择密苏里河上游的Willow、佐治亚州Lloyd Shoals水库、韦科、田纳西河一级支流渡科河、科罗拉多河上游等5条美国长期进行水土流失治理的较大的流域进行减沙效果分析。通过前后长达10—32年的对比，排除降雨和水利工程因素的影响后得出，由于对这些河流上游长时间开展大面积水土保持，其下游河道减沙效果都很显著。The five large river watersheds have been selected in this paper to study effects of sediment reduction contributed by soil and water conservation practices. The five river watersheds include Willos stream of upper Missouri river, Lloyd Shoals Reservoir watershed, Lake Waeo watershed, Tennessee river watershed of Tennessee River basin, upper Colorado River basin. Excluding the factors of rainfall and water conservancy project construction, the analysis results show that the sediment reduction effects of soil and water conservation practices in these watersheds are very obvious in the contrast analysis lasting 10 to 32 years.

关 键 词：流域减沙 美国 水土保持 

分 类 号：P333.4[天文地球—水文科学]