基于熵权的扬州市生态环境质量模糊综合评价研究

为研究扬州市近几年的生态环境质量变化趋势,文章从自然、经济、社会的角度,建立生态环境质量评价指标体系,采用熵权法赋权、模糊综合评价法建立评价模型,对2007年-2011年的扬州市生态质量现状进行分析。结果表明：扬州市生态环境质量综合评价等级值由3.360 8增长到4.738 7,呈逐年上升的趋势。生态环境质量等级也由＂一般＂变为＂良好＂,总体属于中等偏上的水平。通过基于熵权的模糊综合评价法得到了比较切合实际的结果,可以为其他城市生态环境质量评价提供一定的参考。

Fuzzy Comprehensive Evaluation of Yangzhou Urban Ecological Environmental Quality from Entropy Weight Approach

In order to study the changing trends of ecological environmental quality of Yangzhou in recent years,the paper analyzes the present situation of ecological environmental quality of the studied area from 2007 to 2011 by constructing an index system of urban ecological environmental quality assessment from the perspectives of nature,economy and society,and giving weight indicators with entropy method,and establishing a model by application of fuzzy comprehensive evaluation method.The results show that the comprehensive evaluation value of ecological environmental quality increased from 3.360 8 to 4.738 7,indicating that there is an upward trend from 2007 to 2011.The rank changes from＂general＂to＂good＂,belonging to medium levels.By using a fuzzy logic approach based on entropy weight,the results are compliant with the actual situation.This method may provide certain reference for other urban ecological environmental quality assessment.