Erosion and sediment delivery in rills on steep loess slope  

作　　者：张科利 张竹梅 

机构地区：[1]Department of Resources and Environmental Sciences [2]Department of Astronomp, Beijing Normal University, Beijing 100875, China

出　　处：《Progress in Natural Science:Materials International》2000年第10期76-79,共4页自然科学进展·国际材料（英文版）

基　　金：Project supported by the National Natural Science Foundation for Distinguished Young Scholars (Grant No. 49725103) and State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau.

摘　　要：Sediment delivery in rills on the loess slope was studied by inflow experiments. Relationships between sediment deli.very rate in rills and flow shear stress, discharge and slope gradient, maximum sediment and unit runoff power, and discharge and slope gradient were analyzed. A relationship is presented for calculating the erosion rate in rills.Sediment delivery in rills on the loess slope was studied by inflow experiments. Relationships between sediment deli.very rate in rills and flow shear stress, discharge and slope gradient, maximum sediment and unit runoff power, and discharge and slope gradient were analyzed. A relationship is presented for calculating the erosion rate in rills.

关 键 词：RILL EROSION critical shear stress unit STREAM power SEDIMENT rate. 

分 类 号：P512.2[天文地球—地质学]