基于模糊物元模型的城市再生水外部价值评价
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摘要
城市再生水外部价值的定量识别与评价可作为再生水利用工程的决策依据。以陕西省10个区域再生水利用为例,建立包含社会、环境的评价指标。采用变异系数法确定指标的权重,基于模糊物元理论,建立再生水外部价值评价模型,结合欧式贴近度,评价各区域再生水的外部价值,并运用属性识别法及综合评判法对评价结果的可靠性进行验证。结果表明,上述10个城市以及Ⅰ~Ⅳ等级的欧式贴近度分别为:0.552 4、0.484 0、0.269 4、0.440 6、0.205 3、0.118 0、0.137 6、0.144 7、0.269 2、0.287 8、0.427 4、0.286 1、0.254 8、0.096 6。由欧式距离得出汉中、安康、商洛等天然水资源条件较好的城市再生水外部价值小(Ⅳ级),西安、咸阳、铜川等因水资源条件较差的城市再生水外部价值大(Ⅰ级),其余城市再生水均存在一定的外部价值。
The quantitative identification and evaluation of the external value of urban reclaimed water can be used as the basis for decision making of reclaimed water conservancy projects.Taking the application of reclaimed water in 10 cities of Shaanxi Province as an example,the evaluation indexes are selected from society and environment.The weight of each evaluation index is determined by the coefficient of variation method.The paper established the external value evaluation model of reclaimed water based on the fuzzy matter-element theory,evaluates the external value of it combined with Euclid approach degrees,and verify the reliability of the evaluation result through the fuzzy comprehensive evaluation method and attribute distinction method.The results show that the Euclid approach degrees of above 10 cities and the grades Ⅰ~Ⅳ are:0.552 4,0.484 0,0.269 4,0.440 6,0.205 3,0.118 0,0.137 6,0.144 7,0.269 2,0.287 8,0.427 4,0.286 1,0.254 8,0.096 6.The external value of reclaimed water in Hanzhong,Ankang and Shangluo having good natural water resources is low(grades Ⅳ),while it is high in Xi'an,Xianyang and Tongchuan because of their poor water resources(grades Ⅰ),and the reclaimed water of rest cities has certain external value.
The quantitative identification and evaluation of the external value of urban reclaimed water can be used as the basis for decision making of reclaimed water conservancy projects.Taking the application of reclaimed water in 10 cities of Shaanxi Province as an example,the evaluation indexes are selected from society and environment.The weight of each evaluation index is determined by the coefficient of variation method.The paper established the external value evaluation model of reclaimed water based on the fuzzy matter-element theory,evaluates the external value of it combined with Euclid approach degrees,and verify the reliability of the evaluation result through the fuzzy comprehensive evaluation method and attribute distinction method.The results show that the Euclid approach degrees of above 10 cities and the grades Ⅰ~Ⅳ are:0.552 4,0.484 0,0.269 4,0.440 6,0.205 3,0.118 0,0.137 6,0.144 7,0.269 2,0.287 8,0.427 4,0.286 1,0.254 8,0.096 6.The external value of reclaimed water in Hanzhong,Ankang and Shangluo having good natural water resources is low(grades Ⅳ),while it is high in Xi'an,Xianyang and Tongchuan because of their poor water resources(grades Ⅰ),and the reclaimed water of rest cities has certain external value.
引文
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[2]李朦,汪妮,解建仓,等.基于模糊物元模型的再生水资源价值评价[J].西北农林科技大学学报(自然科学版),2016(1):223-229.
[3]Yamagata H,Yamanaka D,Ogoshi M,et al.Evaluation of multiple benefits of artificial streams augmented with recycled water using conjoint analysis[J].Water Practice and Technology,2010,5(3):1-8.
[4]Halaburka B J,Lawrence J E,Bischel H N,et al.Economic and ecological costs and benefits of streamflow augmentation using recycled water in a California coastal stream[J].Environmental Science and Technology,2013,47(19):10735-10743.
[5]Listowski A,Ngo H H,Guo W S.Establishment of an economic evaluation model for urban recycled water[J].Resources Conservation and Recycling,2013,72(2):67-75.
[6]Garcia X,Pargament D.Reusing wastewater to cope with water scarcity:Economic,social and environmental considerations for decision-making[J].Resources Conservation and Recycling,2015,101:154-166.
[7]熊家晴,华莉芳,王巧,等.再生水生命周期综合价值模型与计算[J].建筑科学,2008(10):95-99.
[8]汪妮,方正,解建仓.基于物元分析理论的再生水价值评价[J].武汉大学学报(工学版),2013(1):52-56.
[9]Liu X J,Liang J.External effects evaluation analysis of decentralized wastewater reuse projects[J].Applied Mechanics and Materials,2014,621:277-280.
[10]蔡文.物元模型及其应用[M].北京:科学技术文献出版社,1994.
[11]陈守煜.工程模糊集理论与应用[M].北京:国防工业出版社,1998.
[12]张斌,雍歧东,肖芳淳.模糊物元分析[M].北京:石油工业出版社,1997.
[13]杜娟娟.基于不同赋权方法的模糊综合水质评价研究[J].人民黄河,2015(12):69-73.
[14]田静宜,王新军.基于熵权模糊物元模型的干旱区水资源承载力研究——以甘肃民勤县为例[J].复旦学报(自然科学版),2013(1):86-93.
[15]宋冬梅,刘春晓,沈晨,等.基于主客观赋权法的多目标多属性决策方法[J].山东大学学报(工学版),2015(4):1-9.
[16]马冬梅,陈大春.基于欧式贴近度的模糊物元模型在水资源脆弱性评价中的应用[J].南水北调与水利科技,2015(5):1003-1007.
[17]国家统计局.中国统计年鉴[J].北京:中国统计出版社,2016.
[18]赵静,王义民,刘登峰.陕西省水资源开发利用战略研究[J].陕西水利,2014(3):53-55.
[19]高旭阔.城市再生水资源价值评价[M].北京:化学工业出版社,2014.
[20]郭晓英,陈兴伟,陈莹,等.基于粗糙集和BP神经网络组合法的水资源承载力动态变化分析[J].南水北调与水利科技,2015(2):236-240.