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雨滴击溅是坡面水力侵蚀的主要动力之一,溅蚀量多少直接受制于地表土壤状况。通过雨滴击溅实验,分析了雨滴直径、土壤密实度等对土壤溅蚀量的影响。结果表明:土壤密实度与土壤溅蚀量呈负相关,雨滴直径与土壤溅蚀量呈正相关;溅蚀量随着距溅蚀杯的距离的增大而减小,呈指数函数分布;溅蚀量受雨滴直径和土壤密实度的影响,其关系可用Ms=0.029d3.764.5ρ.128来描述。
Raindrop splashing is one of the main driving forces for water erosion on slopes. The amount of splash erosion is directly controlled by the soil surface conditions. Through raindrop splash experiment, the effects of raindrop diameter, soil compactness and so on on soil erosion were analyzed. The results showed that there was a negative correlation between soil compaction and soil splashing, and the diameter of raindrop was positively correlated with the amount of soil erosion. The amount of splashing decreased with the distance from the splashing cup and distributed exponentially. The amount affected by the raindrop diameter and soil compactness, the relationship can be used Ms = 0.029d3.764.5 ρ.128 to describe.