A Multi-objective Water Resources Allocation Model Based on Equity-Economy-Emission Reduction
To further address the issues of equity,economy,and sustainability in water resource allocation,a multi-objective water resource optimization allocation model was proposed,which aimed to enhance economic benefits while reducing the total regional wastewater discharge.Taking the Longyangxia Reservoir in Qinghai Province as the research subject,the water resource conditions of the research area were analyzed,and a multi-objective water resource optimiza-tion allocation model with the goals of maximizing regional system economic benefits,maximizing the satisfaction of water distribution in each water-use sector,and minimizing the total regional wastewater discharge was found to explore the opti-mal water distribution scheme for the region.Based on the actual regional conditions,two different levels of higher and lower available water were set to investigate the changes in water distribution schemes under different minimum satisfac-tion levels of water-use sectors.The results show that the water distribution schemes generated by the multi-objective water resource optimization allocation model can increase the economic benefits by up to approximately 2.57×1010 CNY,and reduce wastewater discharge by up to approximately 1.8×107 t.The model promotes wastewater reduction while improving economic benefits and distribution fairness,achieving a balance between emission reduction and economic bene-fits,and can provide economic and effective decision support for water resource allocation and planning under different re-gional scenarios.
optimal allocation of water resourcemulti-objective linear programmingsatisfactioneconomic benefitsewage emission