基于压力-状态-响应模型的引江济淮工程安徽段沿线区域生态安全评价  

Regional Ecological Security Assessment of Anhui Section of Yangtze River to Huaihe River Diversion Project Based on the Pressure-State-Response Model

作　　者：顾康康 刘飞 汤晶晶 李雨薇 GU Kangkang;LIU Fei;TANG Jingjing;LI Yuwei(School of Architecture and Planning,Anhui Jianzhu University,Hefei 230601,China;Anhui Institute of Land and Space Planning and Ecology,Hefei 230022,China)

机构地区：[1]安徽建筑大学建筑与规划学院,安徽合肥230601 [2]安徽省国土空间规划与生态研究院,安徽合肥230022

出　　处：《安徽建筑大学学报》2022年第5期1-9,共9页Journal of Anhui Jianzhu University

基　　金：安徽省自然科学基金面上项目(2008085ME160);安徽省高校省级自然科学研究项目—研究生项目(YJS20210500)。

摘　　要：生态安全评价是评估生态环境是否健康安全的一种研究方法。以引江济淮工程安徽段沿线区域为例,基于压力-状态-响应模型构建生态安全评价指标体系,运用层次分析法和熵权法分别对选取的20个评价指标因子赋权得到权重值,进行权重值的组合,然后计算生态安全等级,进而评价引江济淮工程安徽段沿线区域的生态安全。结果表明:(1)引江济淮工程安徽段沿线部分地区仍处于不安全-较不安全等级,生态安全指数的分布存在一定空间差异,人类活动是研究区部分地区生态压力指数偏高的主要影响因素。(2)PM2.5年排放总量、土地胁迫指数、生境质量指数、水网密度指数、植被覆盖度、年总降雨量、地形坡度、造林面积是影响引江济淮工程安徽段沿线区域生态安全的主要因素。(3)人口密度大、发展速度快的城市生态安全指数较高,而发展缓慢的城市生态安全指数反而较低,这与城市推行生态保护政策的力度有很大的关联性。Ecological safety evaluation is a method to assess whether the ecological environment is healthy.Taking the area along the Yangtze River to Huaihe River Water Diversion Project in Anhui province as an example,the ecological safety evaluation index system was constructed based on the Pressure-State-Response model.The weights were assigned to twenty evaluation index factors using hierarchical analysis and entropy weighting method,and the ecological safety of the area was assessed.The results show that:(1)some areas of the study are still in insecure-less secure level,while there are spatial differences in the distribution of ecological security indexes,and the human activities is the main factor for the high ecological stress;(2)the main factors affecting ecological security in the study area include the annual PM2.5 emission,land stress index,habitat quality index,water network density index,vegetation coverage rate,annual rainfall,slope,and afforestation area;(3)the ecological security index is higher in cities with high population density and fast development rate but lower in cities with slow development,which is strongly correlated with the implementation of local ecological protection policies.

关 键 词：压力-状态-响应模型 引江济淮工程安徽段沿线区域 层次分析法-熵权法 生态安全评价 

分 类 号：C922[社会学—人口学]