坡面流侵蚀的水动力学研究进展

Research Advances in Hydrodynamics of Overland Flow Erosion

径流分离土壤是降雨或融雪后坡面水流在特定水动力条件下的一种径流对土壤作用的必然结果,深入理解坡面水动力条件、流水力学特征及侵蚀动力过程是研究坡面水蚀机理的前提,同时也是侵蚀预报模型建立和防治土壤侵蚀的关键。从坡面流流速、分离能力以及挟沙能力等多方面进行系统概述,以期综合目前已有的各种国内外研究经验及研究成果,促进坡面流侵蚀研究的发展与成果应用。

Soil separation by runoff is the inevitable result under specific overland flow hydrodynamic conditions. The premise of studying the mechanism of overland flow erosion is to understand the hydrodynamic conditions and characteristics and erosion dynamic process of slope. It is also the key to the establishment of soil erosion prevention and prediction model. This paper systematically summarizes slope flow velocity,separation capacity and sediment carrying capacity,aiming at synthesizing the existing research experience and achievements at home and abroad,promoting the development and application of related research results.