重庆城市生态系统健康动态评价研究

Dynamic approach to the assessment of urban ecosystem health in Chongqing city

基于结构功能—可持续利用能力—动态变化模型构建城市健康评价指标体系,采用熵权法确立指标权重,并运用模糊数学法建立隶属度矩阵,以此对重庆1997-2007年城市生态系统健康进行综合动态评价研究。结果表明:重庆直辖10年以来,城市生态系统健康状况水平有所改善,逐渐由病态向亚健康状态转化,整体发展趋势较好,但健康改善程度并不显著,综合状态处于亚健康状态。城市的发展度和协调性较差,健康水平较低,需采取相应的措施进一步改善城市生态系统健康状况。

With the combination of the methods of the evaluation index system of urban health which was based on structural function,the capability of sustainable utilization and the model of dynamic change, entropy-weighting method which established the indexes weight and the fuzzy mathematics which established the relatively membership degree, this article investigated the health of the urban ecosystem of the city Chongqing from 1997 to 2007. The results indicated that during the ten years, the health of the urban ecosystem of the city Chongqing improved. Gradually transforming from morbidity to sub-health, the development trend was good, but the health improvement was not significant. The integrated state in the sub-health state. The development and coordination of city were poor. And the level of the health was low. We had to took action to improve the health situation of urban ecosystem of the city.