Department of Irrigation and Drainage Engineering, Aburaihan Campus, University of Tehran, Iran.
Sci Total Environ. 2020 Jul 15;726:138499. doi: 10.1016/j.scitotenv.2020.138499. Epub 2020 Apr 12.
To overcome water scarcity and increasing water demands, achieving economic and social development, and to make regional equilibrium especially in countries with climate variations such as Iran, the inter-basin water transfer is considered as one of the crisis reduction methods. In this study, the COPRAS method, which is one of the new MCDM methods, is used for the first time to evaluate inter-basin water transfer projects in three configurations of integer, fuzzy, and grey (intervals). For this purpose, eight inter-basin water transfer scenarios from the Great Karoon Basin to the Central Iranian Plateau, are determined with the aim of overcoming drinking water scarcity. They are assessed by four important and practical criteria for inter-basin water transfer, including technical risks and the difficulty of execution, political and social problems, environmental problems, and cost per cubic meter of water according to the UNESCO standards. The weights of the criteria were obtained using three methods of AHP, DEMATEL, and Shannon entropy in the integer, fuzzy, and grey ways. Then, scenarios were prioritized using the COPRAS method. Finally, the results were ranked using the Borda count method, which is a method to aggregate the different ranking models. In this study, the results showed that among the criteria, technical risks, and then the cost per cubic meter of water are the essential criteria, respectively. Considering all ranking methods shows that among the scenarios, the eighth scenario, including water transfer from Behesht-Abad basin to Isfahan province and from Kharsan basin to Yazd and Kerman provinces, is superior to the other scenarios. Final COPRAS value of this scenario varies between 0.155 and 0.194 depending on the applied ranking method, and its total Borda score is 63. The findings of this study can help the decision-makers to evaluate the inter-basin water transfer projects in uncertain conditions.
为了应对水资源短缺和需求增长，实现经济和社会发展，并在伊朗等气候变化地区实现区域均衡，跨流域调水被视为缓解水资源危机的方法之一。在这项研究中，首次使用 COPRAS 方法（一种新的多准则决策方法）对三种配置（整数、模糊和灰色（区间））的跨流域调水项目进行评估。为此，确定了从大卡伦流域向伊朗中部高原调水的八种方案，旨在克服饮用水短缺问题。它们根据跨流域调水的四个重要和实际标准进行评估，包括技术风险和执行难度、政治和社会问题、环境问题以及根据联合国教科文组织标准每立方米水的成本。使用层次分析法 (AHP)、DEMATEL 和 Shannon 熵三种方法在整数、模糊和灰色方式下确定了标准权重。然后，使用 COPRAS 方法对方案进行优先级排序。最后，使用 Borda 计数法对结果进行排名，Borda 计数法是一种聚合不同排名模型的方法。在这项研究中，结果表明，在所有标准中，技术风险是最重要的标准，其次是每立方米水的成本。考虑到所有的排名方法，结果表明，在所有方案中，第八个方案（包括从 Behesht-Abad 流域向伊斯法罕省调水，以及从 Kharsan 流域向亚兹德省和克尔曼省调水）优于其他方案。根据所应用的排名方法，该方案的最终 COPRAS 值在 0.155 到 0.194 之间变化，其总 Borda 得分为 63。本研究的结果可以帮助决策者在不确定条件下评估跨流域调水项目。
