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基于我国坡面水蚀预报模型研究成果,考虑浅沟侵蚀对坡面侵蚀产沙的重要影响,建立了我国坡面水蚀预报模型,给出了模型参数降雨侵蚀力、坡度与坡长、浅沟侵蚀影响因子的算法和采用数值。指出今后应加强土壤可蚀性因子、覆盖—管理因子和水土保持措施因子的研究与集成。利用自然坡面径流小区实测资料对模型进行验证,表明模型具有较高的预报精度,在有浅沟和无浅沟的坡面上,预报精度达88%以上。
Based on the research results of slope water erosion prediction model in China and considering the important influence of shallow furrow erosion on slope erosion and sediment yield, the water erosion prediction model of slope in our country was set up and the model parameters such as rainfall erosivity, slope and slope length, shallow trench erosion The impact of the algorithm and the use of numerical factors. It is pointed out that the research and integration of soil erodibility factor, cover-management factor and water and soil conservation measures should be strengthened in the future. The model is validated by the measured data of natural slope runoff plot, which shows that the model has high forecast accuracy. The prediction accuracy is above 88% on shallow and shallow slope.