%A TIAN Lang, LIU Yongqiang, WANG Zhen, CAO Ruizhe, XIAO JunlongŠĪ %T Comprehensive benefit evaluation of water resources in irrigation district based on matter element extension model %0 Journal Article %D 2016 %J Journal of Drainage and Irrigation Machinery Engin %R 10.3969/j.issn.1674-8530.15.0151 %P 351-356 %V 34 %N 4 %U {http://zzs.ujs.edu.cn/pgjx/CN/abstract/article_2051.shtml} %8 2016-04-25 %X In order to evaluate the comprehensive benefit of water resources in irrigation district,the evaluation model was established by using the matter element extension theory, which took the comprehensive benefit of water resources, characteristic and the corresponding characteristic value as a matter element. Evaluation index system was established by taking three aspects:economic benefit, social benefit and ecological environment benefits into consideration. The weight of index was determined by its contribution rate to the comprehensive benefit of water resources.Furthermore, five-level evaluation criteria were proposed. Taking the Zhanghe irrigation district of Hubei Province as an example, the established model was used to evaluate the comprehensive benefit of water resources of it in 2013.The evaluation results were verified by local sensitivity analysis method and the conclusion shows that evaluation results are accurate and reliable,with a good sensitivity.Evaluation results show that the comprehensive benefit of water resources in Zhanghe irrigation is "general" in 2013.At the same time, it can be seen that social benefit and environmental benefit are slightly worse than economic benefit of water resources in this irrigation district.It is seen that the matter element extension model has good practicality and scientifical siginificance in comprehensive benefit evaluation of water resources.ŠĪ