灌区水资源综合效益的改进多级模糊优选评价  

Improved fuzzy-optimized multi-level evaluation for comprehensive benefit of water resources in irrigation area

作　　者：冯峰[1,2] 许士国[1] 

机构地区：[1]大连理工大学土木水利学院水环境研究所,大连116024 [2]黄河水利职业技术学院水资源工程系,开封475003

出　　处：《农业工程学报》2009年第7期56-61,共6页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家自然科学基金项目(50679012):河流洪水资源优化利用理论与方法研究;"十一五"国家科技支撑计划重点项目(2006BAB14B05):雨洪资源利用的风险与效益评估研究

摘　　要：针对灌区水资源综合效益的评价问题,对于不同层次权向量的确定方法进行改进,构建了改进的多级多目标模糊优选评价模型。利用各评价指标的具体变异程度所反映信息的效用程度进行第一层熵权值的计算;对于中间层的权向量,通过熵权值与主观权重线性或均值相结合方法来确定,兼顾了决策者意愿偏好和客观数据属性,以最高层的输出进行方案整体评价。以陕西省某灌区进行实例验证,评价结果表明灌区规划年各项效益均呈递增趋势,2015年即方案三为最优方案,其综合效益比1997年、2005年分别提高了22.6%和39.6%。并与其他两种方法进行了对比,认为该方法不仅能够用于方案优选,而且对每个方案能给予优劣评价,结果合理可靠,适用于灌区水资源综合效益的评价。The fuzzy-optimized,multi-objective and multilevel comprehensive evaluation model for the comprehensive benefits of water resources in irrigation area was established on the premise of improving the weight vector decision method of different layers.The entropy weight evaluation of the first layer could be calculated as per the utility degree of information,which embodied variation extent of evaluation indices.The weight vectors of the intermediate layer could be determined by means of combining the entropy weights with linear subjective weights or mean value,which gave attention to both the preference of decision-makers and the objective data.Finally,the output of the topmost layer was used to evaluate the whole solution.A certain irrigation area in Shaanxi was taken as a verification example,and the results showed that all the benefit indices increased progressively.Scheme three of the year 2015 was the best one,in which the comprehensive benefits had increased 22.6%and 39.6%comparing with that in 1997 and 2005.The model not only to be used for program optimization,but also to evaluate the each scheme.The model is considered more reasonable and more feasible for comprehensive benefit evaluation in irrigation area than the other two methods in practice.

关 键 词：水资源 灌溉 综合权向量 多级模糊优选 熵权 综合评价 

分 类 号：TV213.9[水利工程—水文学及水资源]