论文部分内容阅读
近年来，祁东县把绿化紫色页岩山地当作全县中心工作来抓，取得了较好成效。全县已基本改造好紫色页岩山地1.15万公顷，占其总面积的86.8％，紫色页岩地区森林覆盖率达27％，水土流失面积不足2000公顷，比70年代减少6666.67％公顷。 该县是我省紫色页岩的主要分布区，共有紫
In recent years, Qidong County, green purple shale mountain as the county center to grasp, and achieved good results. The county has basically renovated 11,500 hectares of purple shale mountains, accounting for 86.8% of the total area. The forest coverage in purple shale areas has reached 27%. The area of soil erosion is less than 2000 hectares, 6666.67% less than in the 1970s. The county is the main distribution of purple shale in our province, a total of purple