城市生态系统健康评价方法的一种改进及应用

对基于主成分分析和模糊优选的客观评价方法进行改进，引入参照城市将评价结果由绝对度量转化为相对度量，以此消除评价指标间的大部分相关性。以厦门为参照城市，将本文评价方法运用到连云港，评价结果为：（1）连云港市生态系统健康水平总体较低，但在评价期内一直保持上升趋势；（2）连云港生态系统健康水平提升速度低于厦门，与厦门的差距逐渐拉大，连云港市需进一步增强城市生态化建设的重视程度。

An Improved Method and Its Application for Urban Ecosystem Health Assessment

This paper improved the objective evaluation method with principal component analysis and fuzzy preference by introducing reference city.For the absolute value of assessment result transformed into relative value,most of the indicator correlation was eliminated.An application of this model to Lianyungang with the reference city of Xiamen showed that although the urban ecosystem health of Lianyungang had increased in the period,the ecosystem health increasing rate of Lianyungang was faster than that of Xiamen and the gap between them was wider.Lianyungang should pay more attention to urban ecological construction.