Therefore, the thorough research about the influences of crop cover on erosion is important to control erosion economically and effectively, as well as to improve soil erosiontheory.
因此，深入研究作物植被对土壤侵蚀的作用，对经济有效地防治侵蚀、完善土壤侵蚀理论有重要的意义。
2
In this research, soil erosion and sediment yield was calculated by runoff shear stress, runoff energy consumption and runoff power theory respectively.
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。
3
The model of quantitatively evaluating slide erosion is founded according to the information quantity theory.