| 石羊河流域北部平原区生态安全评价 |
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| 引用本文： | 邓建伟,唐小娟,张新民. 石羊河流域北部平原区生态安全评价[J]. 干旱区资源与环境, 2009, 23(8): 21-24 |
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| 作者姓名： | 邓建伟 唐小娟 张新民 |
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| 作者单位： | 甘肃省水利科学研究院,兰州,730000;甘肃省水利科学研究院,兰州,730000;甘肃省水利科学研究院,兰州,730000 |
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| 基金项目： | "西部开发科技行动"重大项目(2005BA901A15)资助 |
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| 摘 要： | 论文采用主成分聚类分析的方法对石羊河流域北部平原区生态安全进行评价,并对影响指标进行了分类。在建立生态安全评价指标体系的基础上,用主成分分析剔除存在相关性、信息重叠的指标,得到具有代表性的主成分指标代替原来的评价指标,对流域生态安全进行聚类分析。所得符合实际,可为石羊河流域生态环境综合治理提供参考。
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| 关 键 词： | 生态安全 主成分分析 聚类分析 石羊河流域 |
Evaluation on eco-security in northern plateau of Shiyang River Basin |
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| DENG Jianwei,TANG Xiaojuan,ZHANG Xinmin. Evaluation on eco-security in northern plateau of Shiyang River Basin[J]. Journal of Arid Land Resources and Environment, 2009, 23(8): 21-24 |
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| Authors: | DENG Jianwei TANG Xiaojuan ZHANG Xinmin |
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| Affiliation: | Gansu Research Institue for Water Conservancy;Lanzhou 730000;P.R.China |
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| Abstract: | Principal component analysis was adapted to evaluate the ecological security in northern plateau of Shiyang River Basin,and classify the effect indexes.Based on the building of eco-security evaluation indexes,indexes existing relativity and overlapped information were eliminated by principal component analysis,the obtained representative principal component indexes were used instead of original evaluation indexed.A cluster analysis on ecological security of the basin was taken.The results were proved agree ... |
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| Keywords: | eco-security principle component analysis cluster analysis Shi Yang River Basin |
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