基于熵权法的平顶山市生态退化测度评价
投稿时间:2013-12-16  修订日期:2013-12-16  点此下载全文
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作者单位E-mail
鲁迪 平顶山学院 hnludi_1128@163.com 
梁亚红 平顶山学院  
基金项目:河南省科技厅科技攻关资助课题(132102310126);平顶山学院省级重点学科生态学资助课题;平顶山学院A级重点学科生态地理学资助课题
中文摘要:本文运用复合生态系统理论,针对平顶山市生态环境状况,从社会-经济-环境三方面构建PSR(压力-状态-响应)生态退化测度评价指标体系,利用熵权法确定指标权重,应用综合指数法对平顶山市2000-2011年生态系统退化程度进行动态评价和分析。结果表明:研究区生态退化状况2000年以来经历了预警-较稳定的变化趋势;本研究揭示了研究区在煤炭资源开采和利用过程中区域生态系统的时间演变规律,为研究区生态建设和可持续发展提供一定的科学依据。
中文关键词:生态退化  复合生态系统 熵权法  综合指数 平顶山市
 
Measurement and Evaluation on the Ecological Degradation Based on Entropy-weight Method: a case study of Pingdingshan City, China
Abstract:According to the composite ecosystem theory, a measuring evaluation index system of ecological degradation is established on the basis of “Pressure-State-Respond” model from the aspects of society, economic and environment, in terms of the ecological environmental situation of Pingdingshan City. The entropy-weight method is used to determine the weights of indexes. The comprehensive index method is used to evaluate and analyze the extent of the ecosystem degradation from 2000 to 2011 in Pingdingshan City. The results show that: the situation of the ecological degradation has undergone the dynamic change of the “Warning - Relatively Stable” stages since 2000 in the study area. This study reveals the temporal variation rule in the process of exploitation and utilization of coal resources in this study area, which provides scientific reference for the ecological construction and the sustainable development.
keywords:ecological degradation  composite ecosystem  entropy-weight method  comprehensive index  Pingdingshan City
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