| 干旱区城市生态安全评价——以兰州市为例 |
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| 引用本文： | 刘占才.干旱区城市生态安全评价——以兰州市为例[J].安徽农业科学,2008,36(4):1523-1525,1532. |
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| 作者姓名： | 刘占才 |
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| 作者单位： | 西北师范大学地理与环境科学学院,甘肃兰州,730070 |
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| 摘 要： | 参考当前国内外有关城市生态安全评价的多种方法,以兰州市为例,通过对城市生态安全要素的综合分析,从时间尺度上(1990~2004年)对兰州市城市生态安全不同层面的现状和趋势进行测评。结果表明,兰州市的城市生态安全状况总体上正逐步得到改善,但作为表征该市生态压力状况的某些指标在持续恶化。
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| 关 键 词： | 知识网格 城市生态安全 P-S-R模型 模糊数学法 |
| 文章编号： | 0517-6611（2008）04-01523-03 |
| 收稿时间： | 2007-09-21 |
| 修稿时间： | 2007年9月21日 |
Evaluation on the Urban Eco-security in Arid Area |
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| LIU Zhan-cai.Evaluation on the Urban Eco-security in Arid Area[J].Journal of Anhui Agricultural Sciences,2008,36(4):1523-1525,1532. |
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| Authors: | LIU Zhan-cai |
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| Abstract: | Referring to many methods about evaluation on the urban eco-security at the home and abroad,taking Lanzhou city as an example,the present status and trend of urban eco-security on its different layers in Lanzhou city were evaluated in(1990～2004) by comprehensively analyzing the factors of urban eco-security.The results showed that the urban eco-security condition in Lanzhou city was improved gradually generally,but some indices representing its ecological pressure condition were deteriorating continuously. |
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| Keywords: | Knowledge grid Urban eco-security P-S-R model Fuzzy mathematics |
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