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通过对天然降雨条件下坡地水量转化机理的分析，提出了描述降雨入渗、坡面径流和土壤水分运动的坡地水量转化动力学模式．提出并采用了坡面承雨强度、饱和含水率结皮修正系数等概念，考虑了坡度、坡向和雨滴倾斜对坡面接受降雨的影响及结皮对入渗的影响，通量边界的水量平衡，论述了模型参数的测取方法．经野外初步试验表明，该模型对于模拟天然降雨条件下坡地土壤水分动态和坡地水量转化关系具有较高的精度．
By analyzing the mechanism of slope water conversion under natural rainfall conditions, a kinetic model of slope water conversion was proposed to describe rainfall infiltration, runoff and soil water movement. The concept of bearing rain intensity on slope and coefficient of skin cover correction of saturated water cut is proposed and adopted. The effects of slope, aspect and raindrop slope on rainfall reception and the influence of skin cover on infiltration are considered. The amount of water at the boundary of flux Balance, discusses the method of measuring the model parameters. Preliminary experiments in the field show that this model has high precision for simulating the relationship between soil water dynamics and slope water conversion under the conditions of natural rainfall.