摘要
本文将全国生态破坏划分为5个等级,其中无破坏级占国土面积13.8％,严重破坏级占3.9％,中度破坏级占42.9％,破坏类型较重的是二、三产业占用耕地、森林破坏和土壤侵蚀,破坏严重的区域多分布在北方。生态破坏分级图可直观地指出破坏等级和分布特点。
The extent of ecological damages of China is divided into 5 grades. It was estimated that 13. 8% of the territory in China belongs to no-damage grade. The moderately damaged areas constitutes to 42. 9%. The seriousdam-age grade account for 3. 9%. It is concluded that the heavy destructive lands are caused by the cultivated land use of the secondary and tertiary industries. The next causes are forest destruction and soil erosion. The seriously damaged area are mostly distributed in the North China. The graphs of ecological damaged grade in China are also charted. They can directly reflect the level and distributive pattern of ecological damages in China.
出处
《农村生态环境》
CSCD
1992年第3期20-25,共6页
Rural Eco-Environment
