分别利用坡面径流剪切力、坡面径流能耗和坡面径流单位水流功率理论对坡面土壤侵蚀发生过程进行了研究。
In this research, soil erosion and sediment yield was calculated by runoff shear stress, runoff energy consumption and runoff power theory respectively.
试验结果表明，土壤剥蚀率随着水流剪切力的增加其对数呈线性关系。
The results showed that soil detachment rate increased with the increase of flow shear stress, their logarithm was linear.
提出了一种用细沟在坡面发生的位置和相应的水流特性来直接计算土壤临界抗剪切应力的方法。
A direct calculation method of the critical shear stresses was established through observing initial place of slope erosion arising and the characteristic of runoff.
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