(一) 我区西山八县地处黄河中游,总面积一万三千多平方公里,丘陵沟壑和风沙区就占百分之九十。境内梁峁起伏,沟壑纵横,植被稀少,十年九旱,水土流失十分严重。共有流失面积八千四百多平方公里,每年向黄河输入泥沙近五千万吨。截止八○年底,治理水土流失面积二千五百平方公里,占应治理面积的29.76％,治理程度底,速度慢, (I) The eight counties in Xishan District of our county are located in the middle reaches of the Yellow River with a total area of ​​over 13,000 square kilometers. Hilly gully and windy sand area account for 90%. In the territory, there are ups and downs in waves, ravines and ravines, and rare vegetation. In the past ten years, soil erosion is very serious. Total loss of more than 8,400 square kilometers area, the annual import of nearly 50 million tons of sediment to the Yellow River. By the end of 1980, a total area of ​​2,500 square kilometers of soil erosion and water loss had been managed, accounting for 29.76% of the area to be managed. At the end of its administration,