摘要
基于室内外人工降雨径流击溅侵蚀试验资料，分析了定雨强作用下溅蚀量（ＡＳ）与下渗量（Ｆ）的关系，提出了Ｆ～ＡＳ关系计算模型。同时指出溅蚀量存在临界值，当实际溅蚀量大于临界值时，下渗量Ｆ与溅蚀量ＡＳ呈线性正比关系；当实际溅蚀量小于临界值时，Ｆ与ＡＳ呈非线性反比关系。该文所得结果将为揭示水土流失系统土壤表面水土质量交换规律打下一定基础。
Based on the data of artifical rainfallrunoffsplash erosion experiments in laboratory and field, the quantitative relation between rainfall splash erosion (AS) and rainfall infiltration (F) effected by the stable rainfall intensity has been discussed, and the mathematical model about AS and F is also built. In accordance with the model, the concept of critical splash erosion (AC) is presented. If AS<AC, AS is a close nonlinear inversely proportional to F; if AS>AC, AS appears notably linear directly proportional to F. The conclusion of this study is useful for researching the matter exchanging of soil and water on the soil surface in the soil and water loss systems.
