WEI Xing-ping.Ecological Security Assessments of Three Gorges Reservoir area in Chongqing Based on Gray Relational Analysis[J].Research of Soil and Water Conservation,2010,17(04):124-128,133.
基于灰色关联分析三峡库区重庆段生态安全
- Title:
- Ecological Security Assessments of Three Gorges Reservoir area in Chongqing Based on Gray Relational Analysis
- 分类号:
- X171.1
- 摘要:
- 随着经济建设的发展，人们对居住的生态环境提出了更高的要求，以三峡库区重庆段为例，基于压力-状态-响应概念模型，引进灰色系统理论的灰色关联分析方法从20个指标分析了重庆三峡库区自直辖以来的生态安全问题。在灰色关联分析时引入了熵权和AHP的平均值作为权重，使评价更为合理。结果表明：1997年和1998年三峡库区重庆段的生态安全呈病态，1999-2007年三峡库区重庆段生态安全呈不健康状态。从资源环境压力来看，1997年处于病态，1998-2007年为不健康状况；从资源环境状态来看，1997年处于不健康，1998-2000年处于病态，2001-2007年处于不健康状况；从人文环境响应来看，1997-2003年均处于病态，2004年处于不健康，2005-2007年处于亚健康状况。因此总的来讲，三峡库区重庆段生态安全趋于好转，但是生存环境欠佳，需要采取措施尽快改善。
- Abstract:
- With the development of economic construction,people have higher requirements for the living environment.The paper took the Three Gorges reservoir area in Chongqing as an example and analyzed the eco-security issues based on press-states-response model from 20 indicators with the gray relational analysis in the gray system theory since 1997.Gray relational analysis made the results more reasonable because it used the average value between entropy method and AHP as comprehensive weight value.The results showed that:the ecological security of Three Gorges reservoir area in Chongqing was sick both 1997 and 1998,while it was unhealthy state from 1999 to 2007.The situation of the resources environmental pressure was sick in 1997 and was unhealthy from 1998 to 2007.The situation of the resources environmental state was unhealthy in 1997,from 2001 to 2007 and was sick from 1998 to 2000.The situation of human enviroment response was sick from 1997 to 2003 and was unhealthy in 2004 and was sub-healthy from 2005 to 2007.Therefore,ecological security of the Three Gorges reservoir area in Chongqing approches to improve the poor living environment,however,needs to take measures to improve better as soon as possible.
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备注/Memo
收稿日期:2010-3-16;
基金项目:重庆市科委项目（CSTC 2007BC7001，CSTC2009BA0002）;国家科技支撑计划课题（2006BAC01A16）;国家自然科学基金 （40801077）;教育部重点项目（209100）;重庆市自然科学基金（CSTC，2008BB7367）;科技部国际合作项目（2008GR1256）;西南大学研究生创新基金项目（kb2009004，ky2008001）
作者简介:魏兴萍（1975- ），女，四川广安人，博士生，讲师，主要从事资源环境与地理信息系统研究。E-mail：xingpingwei@126.com