为合理地确定区域生态安全评价的指标权重,提出把指标的权重结构分为反映评价指标不同属性对生态安全等级的影响程度的主观权重,和反映各区域评价指标样本值差异信息对生态安全等级的影响程度的客观权重,可分别采用层次分析法和熵权法确定这些权重,再用最小相对信息熵原理把它们综合为组合权重;为体现单指标评价过程中的评价作用,提出用属性识别模型进行单指标评价的新思路;对组合权重值和单指标评价值进行相乘并累加,建立了区域生态安全评价的熵组合权重属性识别模型(AR-CWE)。结果说明:用AR-CWE既可利用指标中的专家主观经验信息,又可挖掘各区域评价指标样本值的客观差异信息,权重信息利用全面,评价结果合理,方法通用,在安全系统综合评价中具有一定的应用价值。
In order to determine indexes weights in regional ecological security evaluation, a weight structure of evaluation indexes consisted of subjective weight and objective weight was presented. The two weights can be computed by using Analytic Hierarchy Process and entropy weight method, and combination weight can be synthesized according to minimum relative information entropy principle. In order to realize the evaluation function of single index evaluation process, a new evaluation method of single index was proposed using attribute recognition model. And then a new model for evaluating regional ecological security, named AR-CWE for short, was established. The result shows that both subjective information of expert experience and objective variation information of samples values can be fully mixed using AR-CWE, and its evaluated results are reasonable. AR-CWE is a general and can be applied to comprehensive evaluation of different security systems.
[1] Rapport D J. Evaluating and monitoring the health of large-scale ecosystem[M]. Springer-Verlag, 1995,5-31.
[2] WU Kai-ya, HU Shu-heng, SUN Shi-qun. Application of fuzzy optimization model in ecological security pre-warning. Chinese Geographical Science, 2005,15(1):29-33.
[3] 曲格平. 生态安全问题已成为国家安全的热门话题[J]. 环境保护,2002,(5):3~5.
[4] 刘 红,王 慧,刘 康. 我国生态安全评价方法研究述评[J]. 环境保护,2005,(8):34~37.
[5] 左 伟,王 桥,王文杰,等. 区域生态安全综合评价模型分析[J]. 地理科学,2005,25(2):209~214.
[6] 何 琼,孙世群,吴开亚, 等. 区域生态安全评价的AHP赋权方法研究[J]. 合肥工业大学学报(自然科学版), 2004,27(4):433~437.
[7] 赵延治,张春来,邹学勇,等. 西藏日喀则地区生态安全评价与生态环境建设[J]. 地理科学,2006,26(1):33~39.
[8] 黄维忠. 基于熵权的层次分析法及在船舶投资决策中的应用[J]. 上海海运学院学报,2000,21(1): 97~101.
[9] 朱雪龙. 应用信息论基础[M]. 北京: 清华大学出版社,2001.
[10] 程乾生. 属性识别理论模型及其应用[J]. 北京大学学报(自然科学版), 1997,33(1):12~20.
[11] 郭亚军. 综合评价理论与方法[M]. 北京: 科学出版社, 2002.
[12] 吴开亚. 区域生态安全的综合评价研究. 合肥: 中国科学技术大学,2003.
[13] 雷功炎. 关于将相对熵用于层次分析的简单注记[J]. 系统工程理论与实践, 1995,15(3): 65~68.
