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《Journal of Soil Water Conservation》 2002-01
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Evaluation and Conservation of Fragile Ecological Environment in China

SHI De ming, LIANG Yin (Nanjing Institute of Soil Sciences, Chinese Academy of Science, Nanjing 210008)  
This paper expounds the special characteristics of ecological environment with obvious fragility: low environment capacity, strong susceptibility, low stability, weak anti external disturbance activity and low natural renewable activity. The assessment indexes of fragile ecological environment have been established based on analyses of natural and human factors and the calculating formula to evaluating the grades of fragile ecological environment were instituted: p= Σ n-7i=1f i·w i. These grades of fragile ecological environment are divided into five types: very strong fragile, strong fragile, moderate fragile, slight fragile and very slight fragile. Finally, the strategy and countermeasures for controlling fragile ecological environment have been suggested. In the development, only by strengthening the work on soil and water conservation, can the ecological safety in the west be guaranteed, and the dual goal of developing the west and establishing a sound ecological environment be achieved.
【Fund】: 国家自然科学基金资助项目
【CateGory Index】: X171.1
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