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不合理的土地利用方式是影响水土流失的直接原因。以黑土丘陵区宝龙泉小流域为试验基地进行的水土流失观测资料表明，本区年侵蚀性降雨出现的频度为２～１９次，水土流失量以顺垄坡耕地最大，荒坡和横垄坡耕地次之，水平梯田、次生林地和草地基本无水土流失现象。径流量与土壤流失量之间存在着正相关关系。在建设基本农田的同时，应限期将禁垦范围内的陡坡耕地退耕还林还草。
Irrational land use patterns are the direct cause of soil erosion. Soil erosion data from Baolongquan watershed in the hilly land of black soil shows that the frequency of erosive rainfall in this area is from 2 to 19 times, and the amount of soil and water loss is the largest in Shunxian slope. The slopes and horizontal ridges Slope farmland, horizontal terraces, secondary forest and grassland basically no soil erosion. There is a positive correlation between runoff and soil loss. In the construction of basic farmland at the same time, should be within the limits of reclamation of steep slopes of arable land to return farmland to grassland.