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雨强对坡地降雨径流形成过程有明显影响本文利用室内控制精度较高的实验设施，重复进行了黄土坡地降雨径流形成过程的实验，积累了较详尽的观测资料通过实验观测数据与数值模拟计算结果的比较，系统分析了短历时降雨强度对坡地入渗、坡面产流和坡面漫流过程的影响．阐明了短历时雨强对入渗的影响可分为两阶段：地表积水前雨强对入渗量及湿锋下移速率有明显影响；积水后影响甚小可忽略不计黄土坡地表层经常处于干燥状态，入渗能力大，而降雨历时较短，产流过程取决于雨强与入渗率的关系．短历时雨强对黄土坡面漫流的影响也可分为两阶段：部分面积汇流时雨强与坡面漫流量呈非线性关系，全面汇流时二者呈线性关系
Rainfall intensity has a significant effect on the process of rainfall and runoff formation on sloping land. In this paper, experiments of rainfall-runoff formation on loess slope are repeated with experimental facilities with high indoor control precision. And more detailed observation data are accumulated through experimental observation data and numerical simulation results The effects of short-term rainfall intensity on slope infiltration, runoff yield and surface runoff were systematically analyzed. It is clarified that the effect of short duration rainfall intensity on infiltration can be divided into two phases: the rainfall intensity before surface water has a significant effect on the infiltration rate and wet-front down-migration rate; the impact after water accumulation is negligible negligible; In a dry state, infiltration capacity, and rainfall duration is short, the flow process depends on the relationship between rainfall intensity and infiltration rate. The effect of short duration rainfall intensity on the runoff of the loess slope can also be divided into two stages: the rainfall intensity at the confluence of some areas shows a non-linear relationship with the runoff at the slope surface, and there is a linear relationship between them