基于逼近理想解法的汾河流域节水灌溉发展水平评价
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摘要
区域性节水灌溉发展水平评价是一个多层次、多指标和多因素的综合评判过程。多指标综合评价是将反映研究对象不同属性的多个指标的信息综合起来,得到评价结果,由此反映评价对象的节水灌溉发展水平。本项目建立了以逼近理想解法(TOPSIS)为基础的评价模型,构建汾河流域节水灌溉发展水平综合评价指标体系,确定专题指标,选择了分属于专题指标的单项指标,应用熵权法和层次分析法确定单项指标权重,按照决策矩阵进行计算,得到相对贴进度即方案评价等级标准,并做出评价结果。结果表明:(1)本计算模型具有计算稳定性、可靠性。(2)汾河流域节水灌溉发展水平处于较低水平。
The evaluation of the regional water saving irrigation development level is a multi-level,multi-index and multi-factor comprehensive process. The multi-index comprehensive evaluation is to consider several multiple indexes of information reflecting the research object of different properties and get the evaluation results,hence to reflect the whole situation of the evaluation objects. The research establishes an evaluation model based on the technique for order preference by similarity to ideal solution,builds the comprehensive evaluation index system of water saving irrigation development level at Fen river basin,determines the project indicators,selects a single index which belongs to the special index,and determines the individual index weight based on the entropy method and analytic hierarchy process. According to the calculation of the decision matrix calculation,the relative closeness coefficient,namely the evaluation grade standard,is obtained and the evaluation results is made. The results show that the calculation model is stable and reliable and the development level of water saving irrigation is at a low level.
The evaluation of the regional water saving irrigation development level is a multi-level,multi-index and multi-factor comprehensive process. The multi-index comprehensive evaluation is to consider several multiple indexes of information reflecting the research object of different properties and get the evaluation results,hence to reflect the whole situation of the evaluation objects. The research establishes an evaluation model based on the technique for order preference by similarity to ideal solution,builds the comprehensive evaluation index system of water saving irrigation development level at Fen river basin,determines the project indicators,selects a single index which belongs to the special index,and determines the individual index weight based on the entropy method and analytic hierarchy process. According to the calculation of the decision matrix calculation,the relative closeness coefficient,namely the evaluation grade standard,is obtained and the evaluation results is made. The results show that the calculation model is stable and reliable and the development level of water saving irrigation is at a low level.
引文
[1]楼豫红,康绍忠,崔宁博,等.四川省灌溉管理节水发展水平综合评价模型构建与应用[J].农业工程学报,2014,30(4):79-89.
[2]方崇,苏超,黄伟军.基于信息熵大型灌区农业旱情的TOPSIS综合评价[J].中国农村水利水电,2011,(5):74-76,79.
[3]李平,樊向阳,黄仲冬,等.农业节水灌溉发展水平多指标综合评价方法研究[J].河南水利与南水北调,2012,(2):28-31.
[2]方崇,苏超,黄伟军.基于信息熵大型灌区农业旱情的TOPSIS综合评价[J].中国农村水利水电,2011,(5):74-76,79.
[3]李平,樊向阳,黄仲冬,等.农业节水灌溉发展水平多指标综合评价方法研究[J].河南水利与南水北调,2012,(2):28-31.