黄河中游面积约580,000平方公里。土壤侵蚀严重地区是秦岭以北、鄂尔多斯以南地区,面积约370,000平方公里。主要分布在晋西、陕北、甘肃中东部,地势高峻,海拔高度一般在1,000—1,500公尺以上。周围多高大的石质山岭(如秦岭等),中有低平谷地(如渭河谷地等),但大部为在长期流水侵蚀之下形 The middle reaches of the Yellow River, an area of ​​about 580,000 square kilometers. The areas with serious soil erosion are north of Qinling Mountains and south of Erdos with an area of ​​370,000 square kilometers. Mainly distributed in western Shanxi, northern Shaanxi, eastern Gansu, high altitude, the altitude is generally above 1,000-1,500 meters. Around the tall rocky mountain (such as Qinling, etc.), in the low Pinggu (such as the Weihe Valley, etc.), but most of the long-term water erosion under the form