宁夏回族自治区地处西北黄土高原中部,总面积51800平方公里,其中水土流失面积38873平方公里,占总面积75％。南部以水力侵蚀为主,北部除有轻度水力侵蚀外,大部为风力侵蚀区。全区除靠黄河水灌溉的12.3％的黄河冲积平原外,其它87.7％的土地属山、丘、风沙干旱地区,水土流失相当严重。 Ningxia Hui Autonomous Region is located in the northwestern Loess Plateau, with a total area of ​​51,800 square kilometers, of which 38,873 square kilometers of soil erosion, accounting for 75% of the total area. The southern part is dominated by water erosion. In addition to mild water erosion in the north, most are areas with wind erosion. Except for 12.3% of the Yellow River alluvial plain irrigated by the Yellow River water, the other 87.7% of the land belongs to the mountainous, mound and wind-blown arid areas, and soil erosion is quite serious.