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当前位置: 首页 > 文章 > 典型岩溶湿地流域生态脆弱性演变及突变特征 林业资源管理 2019 (3) 57-65
Position: Home > Articles > Evolution and Jump Features of Ecological Vulnerability of the Typical Karst Wetland Watershed Forest Resources Management 2019 (3) 57-65

典型岩溶湿地流域生态脆弱性演变及突变特征

作  者：
张超;闻国静;刘云根;王妍;刘鹏;张紫霞
单  位：
西南林业大学林学院;西南林业大学 生态与水土保持学院;西南林业大学 石漠化研究院
关键词：
生态脆弱性;时空演变;突变;熵;岩溶湿地
摘  要：
以典型发育的岩溶地貌—普者黑流域为研究区,利用遥感和地理信息技术,基于层次分析法和生态脆弱性综合评价方法,对2006—2015年普者黑岩溶湿地流域生态脆弱性进行分析,在此基础上对10年间的生态脆弱性时空演变过程及突变特征进行评价.结果表明:2006—2015年普者黑岩溶湿地流域生态脆弱性综合指数逐渐减小,生态脆弱性等级综合表现为中度脆弱;流域生态脆弱性时空分布格局较为散乱,极度脆弱区由普者黑流域下游向上游转移.2006—2015年普者黑流域生态环境熵值发生了多次突变,第2阶段(2009—2012年)的突变特征值>第1阶段(2006—2008年)突变特征值>第3阶段(2013—2015年)突变特征值.自然因素和社会经济因素的叠加作用是研究区生态脆弱性变化的原因,而土地利用类型、景观格局、污染净化和经济发展等为主要驱动因素.
译  名：
Evolution and Jump Features of Ecological Vulnerability of the Typical Karst Wetland Watershed
作  者：
ZHANG Chao;WEN Guojing;LIU Yungen;WANG Yan;LIU Peng;ZHANG Zixia;College of Forestry,Southwest Forestry University;College of Ecology and Soil & Water Conservation,Southwest Forestry University;Research Institute of Rocky Desertification,Southwest Forestry University;
关键词：
ecological vulnerability;;spatial-temporal evolution;;mutation;;entropy;;karst wetland
摘  要：
The ecological vulnerability of the Puzhehei karst wetland in 2006-2015 was analyzed based on the comprehensive analysis method of ecological analysis and ecological vulnerability,and the combination of the Remote Sensing and Geographic Information System technology.The spatial-temporal evolution and mutation of the vulnerability were further evaluated.The comprehensive index of ecological vulnerability in Puzhehei karst wetland decreased in 2006-2015,and the level of the ecological fragility was medium.In addition,during this period of time,the spatial and temporal distribution pattern of the ecological vulnerability in the Puzhehei river basin was scattered and the extremely fragile area was shifted from the lower reaches in the Puzhehei basin to the upper reaches.What′s more,the area of extremely fragile areas decreased and the trend of deterioration of ecological vulnerability was eased.The entropy of ecological vulnerability had mutations in 2006-2015.The ranking results of the mutation eigenvalue was:stage 2(2009-2012)>stage 1(2006-2008)>stage 3(2012-2015).The results revealed the reason why ecological fragility in the study area changed was the superposition of natural factors and human factors.However,the main driving factors which affected the ecological fragility were the land use,landscape pattern,pollution evolution,and economic development etc.

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