四川省南充县磨儿滩水库,总库容1072万立米,位于嘉陵江支流螺溪河上游。集水区总面积26.5平方公里,其中耕地11081亩,疏幼林地7500亩,宜林荒山荒坡6500亩。集雨区内有3个乡,13个村,81个村民小组,总人口7980人,整半劳力4100个。 由于乱砍滥伐,乱垦乱种等原因,森林覆盖率由1958年前的30%下降至10%左右,水土流失严重。据水库管理单位1971～1981年观测资料,平均每 Nanchong County, Sichuan Province mill children Beach Reservoir, with a total capacity of 10.72 million cubic meters, is located in the Jialing River tributaries upstream spiral River. Catchment area a total area of ​​26.5 square kilometers, of which 11081 acres of arable land, sparse forests 7500 acres, 61500 acres of barren slopes. Rainfall area has 3 townships, 13 villages, 81 villagers group, with a total population of 7980 people, 4100 whole labor force. Due to deforestation and indiscriminate cultivation, the forest coverage rate dropped from 30% before 1958 to about 10% with serious soil erosion. According to the reservoir management unit from 1971 to 1981 observation data, the average per