【摘要】 根据在黄土塬坡上进行的野外大型人工降雨径流产沙试验的观测资料,分析并建立了坡面上雨滴击溅产沙模型。给出了实际降雨过程的雨滴动能计算的理论公式。给出了考虑击溅产沙能力受坡面漫流或其它覆盖物影响下的击溅产沙过程的模拟结果。通过对试验现象和结果的结合,描述了雨滴动能对坡面水流及坡面土壤的作用。更多还原

【Abstract】 Based on the experiment of artificial precipitation on the slope in the Loess Plateau a model of splash erosion has been built. A theoretical formula of calculating raindrop kinetic energy in rainfall processes is given. During rainfall, the overland flow and canopy on slope affected splash ability complexly. However, the results of simulating splash erosion processes on slope that considered the effects of overland flow or canopy are obtained. Combing the experiments with results of calculation, we described the effects of raindrop kinetic energy to overland flow and soil surface of slope.更多还原