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河南省渑池县总面积1367.6平方公里,28.64万人,水土流失面积890平方公里,占总面积的65％。到1986年底累计完成治理面积327.24平方公里,对控制水土流失,发展山区经济,起到了一定作用。但是人为造成新的水土流失面积仍在扩大,其严重情况,不容忽视。 1986年全县共有开矿采石71处,毁地626亩,堆积矿渣尾沙15810立方米;修渠筑路81处,占地2546亩,废弃土石276130立方米;打坯烧窑264处,用地4135亩,其他基建施工38处,占地1620亩,堆积废弃物料
Mianchi County, Henan Province, a total area of 1367.6 square kilometers, 286,400 people, soil erosion area of 890 square kilometers, 65% of the total area. By the end of 1986, a total area of 327.24 square kilometers has been completed, playing a certain role in controlling soil and water loss and developing mountain economy. However, man-made new areas of soil and water loss are still expanding, the serious situation can not be ignored. In 1986, the county has a total of 71 mining and quarrying sites, 626 mu of ruined land and 15810 cubic meters of tailings sediment. The canal has 81 roads, covering 2546 mu and 276130 cubic meters of abandoned earth and stone; 4135 acres, 38 other infrastructure construction, covering 1,620 acres, accumulation of waste materials