径流泥沙的成因分割估算模式

Runoff and Sediment Estimation Modal Through Decomposition of Contributing Factors

从降雨对径流的形成、坡面的侵蚀和泥沙的输移过程出发，将径流分割为地表径流及地下径流；将泥沙的输移过程分成依赖于降雨及地表径流的坡面产沙、地下径流冲沙和依赖于河川径流的河道输沙。利用实测资料建立了地表径流、地下径流、坡面产沙、河道输沙等成因分割估算模式，并以实例估算和分析了影响水沙变化因素的作用。

Based on the processes of formation of runoff from rainfall, slope erosion and sediment transport, runoff is decomposed to surface flow and ground water, and sediment transport process is divided into slope sediment yield by rainfall and surface flow, sediment ceded by ground water and sediment transported in river. Estimation models through decomposition of contributing factors for surface flow, ground water, slope sediment yield and river transported sediment are established on the basis of record data and used for estimation and analysis of factors influencing runoff and sediment in actual cases.