在水土流失研究中，坡面径流流速是径流计算、土壤侵蚀预报中不可缺少的水动力参数。
In the research of the soil erosion, the rate of slope runoff is an indispensable hydrodynamic parameter in the runoff computation and the soil erosion forecast.
水土保持样方调查主要是确定土壤侵蚀强度，预测水土流失。
Simple investigation of soil and water conservation calculates intensity of soil erosion and forecast soil and water losses.
当前黑土区土壤退化及水土流失研究的领域主要集中在：现状研究、影响因素研究以及土壤侵蚀研究。
The main fields of previous studies are mainly on status quo investigation, influence, soil erosion in black soil district.
应用推荐