生态脆弱区的生态安全评价——以榆林市为例

杨冬梅; 任志远; 赵昕; 高利峰

Ecologically fragile ecological security evaluation — Take Yulin as an example

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DOI：10.7606/j.issn.1000-7601.2008.03.45

Key Words: ecological security hierarchy analysis method integrated index Yulin

Author Name	Affiliation
YANG Dongmei	College of Tourism and Environment Shaanxi Normal University, Xi’an， Shaanxi 710062， China
REN Zhiyuan	College of Tourism and Environment Shaanxi Normal University, Xi’an， Shaanxi 710062， China
ZHAO Xin	College of Tourism and Environment Shaanxi Normal University, Xi’an， Shaanxi 710062， China
GAO Lifeng	College of Tourism and Environment Shaanxi Normal University, Xi’an， Shaanxi 710062， China

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Abstract:

By using the method of analyzing the comprehensive index and level of the ecological security the evaluative system of ecological security is established to evaluate the changing tendency of ecological security from the ecological environment social environment environmental press of pollution and preventing environment in the ecologically fragile area in Yulin in the past ten years．The results show that ecological security in Yulin is in previous warning states on the time but there is some volatility especial in some area；although ecological environment is becoming better the problems are also serious．At last the reason is analyzed and advices for improving ecological environment are given.