乌裕尔河位于黑龙江省西部,为省内最大的内陆河。乌裕尔河流域中上游地处黑土区,土质肥沃,是我国的重要商品粮基地。但该区域丘陵起伏,漫川漫岗地势明显。因此,水土流失也较为严重,形成了大量的侵蚀沟。大的侵蚀沟有的长达数千米,宽达几十米,将成片肥沃的农田切割得 Wu Yuer River is located in the western part of Heilongjiang Province, the largest inland river in the province. Wuyuer River Basin is located in the upper reaches of the black soil area, fertile soil, is China’s important commodity grain base. However, the hilly region, Manchurian overtopping obvious. Therefore, soil erosion is also more serious, forming a large number of erosion ditch. Some of the major erosion ditches are several thousand meters long and tens of meters wide, cutting the fertile farmland into pieces