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大多数河流输移的和沉淀于水库中的泥沙来自流域内水的侵蚀。随着农业开垦、露天采矿、油页岩开发、森林采伐、公路建设和其他活动等对环境影响日益增长,山地土壤侵蚀的研究正日益受到重视。适用于计算地面径流土壤侵蚀的方法主要依靠对实验小区或自然流域观测资料的统计分析。当计算随时间变化的土壤侵蚀率时,具有物理意义的模型似乎比奠基于回归分析的模型更有用。控制着土壤侵蚀的物理
Most of the sediment transported by rivers and deposited in reservoirs comes from water erosion in the watershed. With the reclamation of agriculture, the impact of open-pit mining, oil shale development, deforestation, road construction and other activities on the environment is increasingly increasing. The research on mountain soil erosion is gaining more and more attention. The methods suitable for calculating soil runoff from surface runoff rely mainly on the statistical analysis of observed data from experimental or natural basins. When calculating the rate of soil erosion over time, a physically meaningful model appears to be more useful than a model based on regression analysis. Physical control of soil erosion