水土保持研究2018，Vol.25Issue(2)：322-327,6.
山区县土地生态脆弱性动态变化分析——以青龙满族自治县为例
Analysis on Dynamic Change of Land Ecological Vulnerability in Mountainous County——Taking Qinglong Manchu Autonomous County as an Example
摘要
Abstract
The study of land ecological vulnerability has an important role in strengthening the ecological restoration and protection of mountain areas,and promoting the coordinated development of resources,environment and social economy.This article took Qinglong Manchu Autonomous County as an example,and the evaluation index system was built from natural conditions and human factors with seven indicators.The ecological vulnerability of the study area in 2001,2007 and 2013 was quantitatively evaluated by the comprehensive index method,and then the spatial and temporal distribution of the ecological vulnerability was analyzed.Finally,the change slope method was used to analyze the evolution trend of ecological vulnerability.The result shows that:in 2001,2007 and 2013,the mild vulnerable area accounts for 50.56％,52.50％,54.97％,respectively,in the study area,and the proportion above moderate vulnerable area decreased from 48.84％ to 44.35％,which means that the ecological vulnerability of the study area is significant,but the mild vulnerability was dominant,and the ecological vulnerability was developing towards a good situation;the ecological vulnerability of land ecosystem was high in the northwest and low in the east;the light vulnerable area significantly increased,and the middle and high vulnerable areas significantly reduced,and there was no significant change trend of vulnerability in the most other regions.关键词
土地生态脆弱性/动态变化/青龙满族自治县Key words
land ecological vulnerability/dynamic change/Qinglong Manchu Autonomous County分类
资源环境引用本文复制引用
魏明欢,胡波洋,张贵军,张蓬涛..山区县土地生态脆弱性动态变化分析——以青龙满族自治县为例[J].水土保持研究,2018,25(2):322-327,6.基金项目
河北省社会科学基金“河北省城乡一体化进程中耕地资源安全评价及保护机制研究”(HB14GL040) （HB14GL040）
