可变模糊模型在水资源短缺风险评价中的应用  

Variable Fuzzy Set Model Based on Comprehensive Weights and Its Application in Evaluation of Water Resources Shortage Risk

作　　者：李帅[1] 刘冀[1] 董晓华[1] 杜发兴[1] 李新哲[1] 雷丹[1] 

机构地区：[1]三峡大学土木水电学院,湖北宜昌443002

出　　处：《水电能源科学》2009年第5期21-23,85,共4页Water Resources and Power

基　　金：国家自然科学基金资助项目(40701024)

摘　　要：针对水资源短缺风险评价中各指标具有模糊性及应用单一模型评价存在的偏面性问题,采用可变模糊评价模型进行水资源短缺风险评价可提高评价结果的可靠性,并将熵权作为客观权重与主观权重相结合确定指标综合权重。实例应用结果表明,该模型计算简便,评价结果可靠、合理。Aiming at fuzziness of evaluation indicators in water resources shortage risk, as well as the problem of single one-sided issue due to evaluating with single model, variable fuzzy evaluation model is employed to evaluate water resources shortage risk in this paper, The model can be transformed into several models for evaluation by changing its parameters, which improves the reliability of evaluation results. For determining reasonable indicator weights, entropy theory is employed to calculate objective weights, and then comprehensive indicator weights can be obtained by combining subjective and objective indicator weights. Finally. the comprehensive evaluation of water resources shortage risk in Xi＇an city is conducted with the developed model, results show that the model is easyly for computing and evaluation results are reliable.

关 键 词：可变模糊集 熵权 水资源 短缺风险 评价 

分 类 号：TV213.4[水利工程—水文学及水资源] X820.4[环境科学与工程—环境工程]