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《Journal of Beijing Forestry University》 2008-01
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Spatial pattern modelling of ecological security assessment in a region

CHEN Xing~1,2. 1 State Key Laboratory of Resources & Environmental Information System,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing,100101,P. R. China;2 Spatial Information Research Center of Fujian Province,Fuzhou University,350003,P.R. China.  
Ecological security is an important environmental indemnification and its assessment is a scientific foundation for the sustainable development of a region. A spatial pattern modelling of a regional ecological security had been developed by a few representative indices after considering the ecological security load and ecological security support system capacity in this paper. The paper proposes location coefficient,which is a new method to measure the regional differentiation in ecological environmental aspect. And GDP and population were used to describe the ecological security load produced by the regional human society system. Biomass of forest distribution,which is a new concept,is taken as the capacity of ecological security support system. Taking Changting County of Fujian Province as the example,the regional ecological security was assessed quantitatively for soil erosion. The results showed that the area of ecological security and comparison security in Changting County occupied 87.75% of the total land area. The impacts of regional ecological security by forest resources,regional differentiation and human activities were discussed in this paper,and human activities are the key aspects affecting the regional ecological security.
【Fund】: 福建省自然科学基金资助项目(D0410013)。
【CateGory Index】: X826
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