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《Resources and Environment in the Yangtze Basin》 2003-05
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CHARACTERIZATION OF FRAGILE ECO-REGIONS IN SOUTHWESTERN CHINA

HUANG Cheng-min 1,2 ,AI Nan-shan 1 ,YAO Jian 1 ,LUO Wen-feng 1 (1.Department of Environmental Science and Engineering,School of Architecture and Environment,Sichuan University,Chengdu610065,China;2.School of Earth Sciences,Chengdu University of Technology,Chengdu610059,China)  
As an eco-region with high fragility,the southwestern China is of importance for sustainable development.Fragile eco-region is defined as the continuous region,with interactions of human activity and natural factors,in which the capability against disturbance and restoration in eco-environmental system is low.Meanwhile,the adverse evolution can not be effectively controlled under current economical and technical conditions.The main features of fragile eco-region are intersections of stress,diversity of stress sources and stress processes,dimensions,high sensitivity,and heterogeneity of inner units as well as complexity of scaling etc.Based on vulnerably ecological and environmental features of regions integrated with physical conditions and characteristics of human activity,five types of fragile eco-regions had been divided in southwestern China depending mainly on sources,mutuality and processes of stresses,which were moderate stress and moderately fragile eco-region,strong stress and highly fragile eco-region,low stress and highly fragile eco-region,strong stress and moderate fragile eco-region,and moderate stress and highly fragile eco-region.
【Fund】: 国家科技部软科学研究项目(K00-10-06)
【CateGory Index】: X171.1
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