基于熵权物元可拓模型的黑河中游生态环境脆弱性评价

doi:CNKI:SUN:NCST.0.2008-01-000

Abstract

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 eco-environmental 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.

Key words: eco-environmental fragility, matter-element model, extension engineering, information entropy, middle reaches of the Heihe River

CLC Number:

X826

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.

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Evaluation of Eco-Environmental Fragility in Middle Reaches of Heihe River Using Information Entropy and Matter-Element Model

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