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自从通用土壤流失方程式提出以来,引起了许多国家的重视。各国的水土保持工作者都在根据本国的实际情况,研究土壤流失方程式中各系数在本地区的适用性,进而建市各自国家或地区性的流失方程式。通用土壤流失方程式的数学表达式是A=RKLSCP。式中R是降雨侵蚀力指标,它是降雨侵蚀潜力的一个度量。美国学者威斯奇迈尔(Wischmeier)通过各种因数在不同的算术排列组合中的复回归试验,发现复合参数——暴雨动能与30分钟最大降雨强度的乘积是判断土壤流失
Since the universal soil loss equation was proposed, many countries have drawn great attention. Soil and water conservation workers in all countries are studying the applicability of the coefficients of the soil loss equation in the region according to the actual conditions in their own country so as to establish their respective national or regional loss equations. The general formula for the soil loss equation is A = RKLSCP. Where R is the indicator of rainfall erosivity and is a measure of the potential for rainfall erosion. Wischmeier, the American scholar, has found that the product of the composite parameter-rainstorm kinetic energy and the maximum rainfall intensity of 30 minutes is the result of complex regression of various factors in different arithmetic permutations.