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《Chinese Agricultural Science Bulletin》 2012-10
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Ecological Sensitivity Analysis on Wanquan River Watershed Based on GIS

She Jiyun,Zhou Danhua,Liu Zhaocheng,Shen Jinming,Mao Xupeng ( Central South University of Forestry and Technology ,Changsha 410004)  
In order to understand the ecological problems in Wanquan River watershed,the author selected 5 ecological sensitive evaluation factors,including slope degree,elevation,soil type,water buffer and land use type to analyze ecological sensitivity comprehensively based on GIS,using the survey material and related research data.The results indicated:(1) low sensitive areas(38.69%)non-sensitive areas(26.7%)moderately sensitive areas(22.84%)highly sensitive areas(8.38%)extremely sensitive areas(3.39%).(2) The extremely sensitive areas were mainly distributed the upper reaches of catchment,the highly sensitive areas were scattered the all the watershed,moderately sensitive areas were mainly distributed the upper-middle reaches, the low sensitive and non-sensitive areas were concentrated in the lower-middle reaches of watershed.This demonstrated that the spatial distribution of ecological sensitivity of Wanquan River basin was significantly different,the ecological sensitivity was low,the ecological environment had good condition.
【Fund】: 海南省林业局重点科研项目“海南省五大河流域植被恢复与保护规划研究”(LK20118478);; 湖南省“十一五”重点学科建设计划资助项目“森林经理学科”(2006-028-0015)
【CateGory Index】: X826
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