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| 长江上游水源涵养区界定及生态安全影响因素分析 | |
| 引用本文： | 董伟,蒋仲安,苏德,高吉喜.长江上游水源涵养区界定及生态安全影响因素分析[J].北京科技大学学报,2010,32(2). |
| 作者姓名： | 董伟 蒋仲安 苏德 高吉喜 |
| 作者单位： | 1. 北京科技大学土木与环境工程学院,北京,100083;中国环境科学研究院,北京,100012 2. 北京科技大学土木与环境工程学院,北京,100083 3. 中国环境科学研究院,北京,100012 |
| 基金项目： | 联合国环境规划署UNEP资助项目(No.IMIS:GFL-2328-2740-4822) |
| 摘 要： | 对长江上游水源涵养区进行了详细地划分,采用生态系统内外部指标相结合的方法,建立界定指标体系,以界定模型结合ArcGIS空间分析模块的手段,界定出重点水源涵养区.结合研究区实际情况,根据压力-状态-响应(P-S-R)框架模型建立了多层次结构的生态安全评价指标体系.运用层次分析-向量相似度-主成分投影法对重点水源涵养区生态安全状况进行评价.针对评价结果,采用灰关联分析方法进行研究区生态安全影响因素关联度综合分析.研究结果表明:影响研究区生态安全的主要因素是降雨量、GDP增长率、水资源有效利用率、植被覆盖度和水环境质量. |
| 关 键 词： | 生态安全 界定 灰关联 水源涵养区 |
Delimitation of water conservation areas in the upper Yangtze River and analysis of influencing factors on eco-security |
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| DONG W-ei,JIANG Zhong-an,SU De,GAO Ji-xi.Delimitation of water conservation areas in the upper Yangtze River and analysis of influencing factors on eco-security[J].Journal of University of Science and Technology Beijing,2010,32(2). | |
| Authors: | DONG W-ei JIANG Zhong-an SU De GAO Ji-xi |
| Abstract: | In order to partition water conservation areas in the upper Yangtze River,inner and external indexes in an ecosystem were used to constructed a delimitation index system,and the key water conservation areas were delimitated by the delimitation model in combination with the ArcGIS Spatial Analyst.Based on the actual situation of research areas,a multi-level and multi-structure index system for eco-security assessment was built with the PSR (pressure-state-response) model framework.Eco-security assessment of ... |
| Keywords: | ecological security delimitation gray correlation water conservation area |
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