Amirkabir University of Technology Amirkabir Journal of Civil Engineering 2588-297X 53 10 2021 12 22 Optimal water utilization policy with sustainable aquifer approach with simulation and decentralized optimization Optimal water utilization policy with sustainable aquifer approach with simulation and decentralized optimization 4397 4412 4105 10.22060/ceej.2020.18345.6841 FA Atena Khajeem Moghadam Department of Civil Engineering, Islamic Azad University Arak Branch, Arak, Iran Bahram Saghafian Professor of Water Resources Engineering, Science and Research Branch, Islamic Azad University. Tehran, Iran. 0000-0003-2846-2840 Mohsen Najarchi Department of Civil Engineering, Arak Branch, Islamic Azad University, Arak, Iran Majid Delavar Department of Water Resources Engineering, Tarbiat Modares University, Tehran, Iran. Journal Article 2020 05 02 Nowadays, providing optimum solutions to water resources exploitation problems has become one of the major concerns of decision-makers. In this study, a multi-objective model was developed for coupled surface and groundwater resources allocation, considering different interactive scenarios between stakeholders and the ecosystem. The general algorithm for water resources allocation was based on an optimization model coupled with the environmental-agricultural model. The optimization approach reduced the irrigation water allocation to 78%. While the 7% reduction was allocated to meet the aquifer and agricultural demands of the study area, the cultivation cost was raised by only ~1.3%. Nowadays, providing optimum solutions to water resources exploitation problems has become one of the major concerns of decision-makers. In this study, a multi-objective model was developed for coupled surface and groundwater resources allocation, considering different interactive scenarios between stakeholders and the ecosystem. The general algorithm for water resources allocation was based on an optimization model coupled with the environmental-agricultural model. The optimization approach reduced the irrigation water allocation to 78%. While the 7% reduction was allocated to meet the aquifer and agricultural demands of the study area, the cultivation cost was raised by only ~1.3%. https://ceej.aut.ac.ir/article_4105_77143919d1234297079f075357988f3b.pdf