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一、基本概况红卫水库位于贵州省金沙县安底镇南4公里,库区属黄泥公社三合、岐山、店明三个大队。小流域面积11.5平方公里。主沟长4公里,分布在主沟左右岸的支沟2条,全长7.5公里。入库基流50秒升,是乌江水系偏岩河流域的支流。四周山高坡陡,中部浅丘起伏,沟道纵横。海拔1,050—1,350米,自西南向东北倾斜。水土流失自1978年建库以来演变较快,现已发展为强度流失,年侵蚀模数每平方公里平均在2,500吨以上。水土流失面积9,828亩,占总面积的57.1%,其中年侵蚀量每平方公里达10,000吨的强度流失面积8,569亩,占流失面积的80.7%。在强度流失面积中,农耕地流失6,949亩,占农耕地的67.6%。
First, a basic overview Hongwei reservoir is located 4 kilometers south of Andi Zhen, Jinsha County, Guizhou Province, the reservoir area is a yellow mud commune Sanhe, Qishan, shop Ming three brigades. Small watershed area of 11.5 square kilometers. The main channel is 4 km long, with 2 branches distributed around the main channel and a total length of 7.5 km. 50 seconds storage base flow, is the tributaries of the Wujiang River Panyan River Basin. Steep mountains around the steep, central shallow hill ups and downs, vertical and horizontal channels. 1,050-1,350 meters above sea level, from southwest to northeast tilt. Soil and water loss has evolved rapidly since its establishment in 1978 and has now developed into an intensity loss with an annual erosion modulus of more than 2,500 tons per square kilometer. Soil and water loss area is 9,828 mu, accounting for 57.1% of the total area. Among them, 8,569 mu is the intensity loss area with an annual erosion rate of 10,000 tons per square kilometer, accounting for 80.7% of the lost area. Among the area of strength loss, 6,949 mu of farmland was lost, accounting for 67.6% of the cultivated land.