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基于GIS的万泉河流域生态敏感性分析
引用本文:佘济云,周丹华,刘照程,沈金明,毛旭鹏.基于GIS的万泉河流域生态敏感性分析[J].中国农学通报,2012,28(10):69-73.
作者姓名:佘济云  周丹华  刘照程  沈金明  毛旭鹏
作者单位:中南林业科技大学,长沙,410004
基金项目: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)
摘    要:为了了解万泉河流域存在的生态问题,利用调查资料和相关研究数据,选取坡度、高程、土壤类型、水域缓冲区、土地利用类型5个单生态敏感性因子作为评价指标,在GIS的支持下,进行综合生态敏感性分析。结果表明:(1)轻度敏感区(38.69%)>不敏感区(26.7%)>中度敏感区(22.84%)>高度敏感区(8.38%)>极度敏感区(3.39%);(2)极度敏感区主要分布在流域的上游,高度敏感区则零散的分布在整个流域,中度敏感区主要分布流域中上游,轻度敏感区、不敏感区则集中分布在流域的中下游。表明万泉河流域的生态敏感性在空间分布上存在差异,生态敏感度较低,生态环境状况良好。

关 键 词:碳补偿项目标准  碳补偿项目标准  
收稿时间:2011/11/4 0:00:00
修稿时间:2012/1/14 0:00:00

Ecological Sensitivity Analysis on Wanquan River Watershed Based on GIS
She Jiyun , Zhou Danhua , Liu Zhaocheng , Shen Jinming , Mao Xupeng.Ecological Sensitivity Analysis on Wanquan River Watershed Based on GIS[J].Chinese Agricultural Science Bulletin,2012,28(10):69-73.
Authors:She Jiyun  Zhou Danhua  Liu Zhaocheng  Shen Jinming  Mao Xupeng
Institution:( Central South University of Forestry and Technology ,Changsha 410004)
Abstract: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.
Keywords:ecological sensitivity  GIS  Wanquan River watershed
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