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通过对西峰水保站１９６４～１９８０年径流小区观测资料的统计分析，结果表明：次暴雨侵蚀模数与径流深之间以幂函数相关为最好（ｇ＝ａＨ￣ｂ）。笔者以单位面积、单位径流深的冲刷量均值（ｋｗ）做为描述土壤抗冲性的指标，并对其影响因素进行了分析。
Based on the statistical analysis of the observation data of runoff in Xifeng Water Conservation Station from 1964 to 1980, the results show that the power function correlation is the best between the sub-rainfall erosion modulus and runoff depth (g = aH ~ b). The author uses the average amount of runoff per unit area and runoff depth (kw) as an index to describe the soil anti-scourability, and analyzes the influencing factors.