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崇明东滩海岸带生态系统退化诊断体系的构建
作者姓名:Zhu YL  Guo ZY  Ye SF  Li XD  Wang D
作者单位:1. 华东师范大学地理信息科学教育部重点实验室,上海,200062
2. 海洋赤潮灾害立体监测技术与应用国家海洋局重点实验室,上海,200090;国家海洋局东海标准计量中心,上海,200080
基金项目:海洋公益性行业重点项目(200805080)资助
摘    要:基于压力-状态-响应(PSR)概念模型,构建了崇明东滩海岸带农田、湿地和近海生态系统退化评价的指标体系,采用层次分析法和熵权法相结合的乘法合成法得到各评价指标的权重,并通过指标值的地理空间量化和空间聚类分析了各生态系统的退化程度.结果表明:2005年,东滩海岸带生态系统的退化程度在空间上可分为4个级区,1级区、2级区、3级区和4级区的退化程度依次加重;重金属含量的权重在近海、湿地和农田生态系统中均最大,分别为0.65、0.20和0.26;对湿地生态系统影响较大的指标还有鸟类多样性指数、土地利用强度和外来物种互花米草的盖度,其权重分别为0.26、0.16和0.10;影响农田生态系统较大的因素还有土地利用强度,权重为0.22.

关 键 词:生态系统退化  指标体系  空间聚类  崇明东滩  

Construction of degradation diagnosis system for the ecosystems in Dongtan coastal zone of Chongming, Shanghai
Zhu YL,Guo ZY,Ye SF,Li XD,Wang D.Construction of degradation diagnosis system for the ecosystems in Dongtan coastal zone of Chongming, Shanghai[J].Chinese Journal of Applied Ecology,2011,22(2):513-518.
Authors:Zhu Yan-Ling  Guo Zhong-Yang  Ye Shu-Feng  Li Xiao-Dong  Wang Dan
Institution:ZHU Yan-ling1,GUO Zhong-yang1,YE Shu-feng2,3,LI Xiao-dong1,WANG Dan2,3(1Ministry of Education Key Laboratory of Geographic Information Science,East China Normal University,Shanghai 200062,China,2State Oceanic Administration Key Laboratory of Marine Integrated Monitoring and Applied Technologies of Harmful Algal Blooms,Shanghai 200090,3East China Sea Center of Standard and Metrology,State Oceanic Administration,Shanghai 200080,China)
Abstract:Based on the pressure-state-response(PSR) concept model,a degradation evaluation index system was constructed for the cropland,wetland,and inshore ecosystems in Dongtan coastal zone of Chongming.By using multiplication synthesis,a combination of analytic hierarchy process and entropy weight method,the weights of each evaluation index were obtained,and,through geographical space index quantification and spatial clustering,the degradation degree of each ecological system was analyzed.The results showed that t...
Keywords:ecosystem degradation  index system  spatial clustering  Chongming Dongtan Wetland    
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