| 基于熵权物元可拓模型的黑河中游生态环境脆弱性评价 |
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| 引用本文： | 潘竟虎,冯兆东.基于熵权物元可拓模型的黑河中游生态环境脆弱性评价[J].生态与农村环境学报,2008,24(1):1-4,9. |
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| 作者姓名： | 潘竟虎 冯兆东 |
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| 作者单位： | 1. 西北师范大学,地理与环境科学学院,甘肃,兰州,730070;兰州大学,资源环境学院,甘肃,兰州,730000
2. 兰州大学,资源环境学院,甘肃,兰州,730000 |
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| 基金项目： | 国家自然科学基金
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世行黄土高原水保新技术推广项目
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甘肃省自然科学基金 |
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| 摘 要： | 针对黑河中游生态环境特点,基于PSR模型,选取9项能反映其生态环境脆弱性而彼此之间相互独立的评价指标体系,采用物元可拓理论和熵权法构建生态环境脆弱性的综合评判模型,对黑河中游各地区生态环境脆弱性进行了评价.结果表明:民乐县和甘州区整体生态环境脆弱性相对较轻,嘉峪关市中等,肃州区、高台县和临泽县较重,山丹县最严重;各地区对不同评价指标的敏感程度也各不相同.评价结果符合当地实际情况.
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| 关 键 词： | 生态环境脆弱性 物元模型 可拓工程 信息熵 黑河中游 |
| 文章编号： | 1673-4831（2008）01-0001-04 |
| 收稿时间： | 2007-10-12 |
| 修稿时间： | 2007年10月12 |
Evaluation of Eco-Environmental Fragility in Middle Reaches of Heihe River Using Information Entropy and Matter-Element Model |
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| PAN Jing-hu,FENG Zhao-dong.Evaluation of Eco-Environmental Fragility in Middle Reaches of Heihe River Using Information Entropy and Matter-Element Model[J].Journal of Ecology and Rural Environment,2008,24(1):1-4,9. |
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| Authors: | PAN Jing-hu FENG Zhao-dong |
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| Abstract: | Based on characteristics of the eco-environment in the middle reaches of the Heihe River and PSP model, 9 evaluation index systems that reflect ental frangibility while being isolated from each other were selected to form a model for integrated evaluation of eco-environment fragility of the studied area using the matter-elements theory and information entropy. Results indicate that Minle and Ganzhou Counties were the least, Jiayuguan city was medium, Suzhou, Gaotai and Lingze Counties were slightly high, and Shandan County was the highest in eco-environmental fragility. Sensibility of evaluation factors varied from factor to factor and from county to county. The evaluation results obtained using such a model are basically consistent with the local conditions. |
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| Keywords: | eco-environmental fragility matter-element model extension engineering information entropy middle reaches of the Heihe River |
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