基于GIS的青海省黄南藏族自治州生态敏感性评价  

GIS-Based Ecological Sensitivity Evaluation of Huangnan Tibetan Autonomous Prefecture of Qinghai Province

作　　者：于瑶[1] 郭泺[1] 周苏龙 王丹[1] 

机构地区：[1]中央民族大学生命与环境科学学院,北京100081

出　　处：《西南林业大学学报（自然科学）》2015年第2期48-54,共7页Journal of Southwest Forestry University：Natural Sciences

基　　金：国家自然科学基金(31370480)资助;高等学校学科创新引智计划(B08044)资助

摘　　要：以青海省黄南藏族自治州遥感影像图为数据源,结合实地调查和社会经济等数据,依据该州的生态环境现状,建立生态敏感性评价指标体系,采用层次分析法,在GIS支持下,对该州进行生态敏感性评价。结果表明,黄南藏族自治州的生态敏感性为中度敏感水平,该州西北地区敏感度最高;其中高度敏感区仅占总面积的1.24%,中度敏感区域占总面积的57.35%,轻度敏感区和不敏感区占总面积的41.41%;依据评价结果将黄南藏族自治州划分为4个生态功能区。Based on remote sensing image data,field investigation and socio-economic data,according to the local ecological environment situation,take Huangnan Tibetan Autonomous Prefecture （Huangnan）in Qinghai Prov-ince as a case for the study to establish eco-sensitivity index system in the study area.Applying AHP method and GIS technology,the weight of each factor and eco-sensitivity was analyzed and the result showed that Huangnan Pre-fecture was a moderate eco-sensitivity area,the eco-sensitivity in the northwest part was higher than the other parts. The area with high eco-sensitivity accounted for only 1. 24%of the total area in the prefecture.The area with mod-erate eco-sensitivity and the area with low and no eco-sensitivity in Huangnan Prefecture took 57. 35% and 41. 41% of the total area respectively.Huangnan Prefecture was divided into four ecological function areas accord-ing to the result of the ecological sensitivity assessment,which provide a theoretical basis for future ecological envi-ronment construction in Huangnan Prefecture.

关 键 词：生态敏感性 综合评价 生态功能区划 黄南藏族自治州 

分 类 号：S771.8[农业科学—森林工程]