经济效益与水质提升双视角下南水北调水资源供应链契约协调

南水北调工程是国家水网的重要组成部分,为进一步发挥南水北调工程水资源优化配置能力,确保优质南水供给,推动后续运营管理工作有序开展,助力国家水网建设,结合博弈论与供应链理论,从考虑经济效益和水质提升双目标视角,探讨南水北调水资源供应链协调问题.基于对南水北调水资源供应系统的概化及相关假设,建立水资源供应链的市场需求函数、水质效用函数和水质提升成本函数,分别构建包括集中决策、批发价格契约和收益共享-水质提升成本共担契约下的水资源供应链多目标模型并探讨相应的协调策略.最后通过数值分析对结论进行验证.研究表明,水质效用与经济效益之间存在冲突,批发价格契约无法实现供应链的协调,而收益共享-水质提升成本共担契约可以实现水质效用目标的协调,以及经济目标的帕累托改进.

Contract coordination of water resources supply chain of south-to-north water diversion project from the perspective of economic benefits and water quality improvement

The south-to-north water diversion project is an important part of the national water network. In order to further give play to the optimal allocation capacity of water resources of the south-to-north water diversion project, ensure high-quality south water supply, promote the orderly development of follow-up operation and management, and help the construction of the national water network, based on game theory and supply chain theory, this paper discusses the coordination of the water resources supply chain of the south-to-north water transfer from the perspective of economic benefits and water quality improvement. Based on the generalization and relevant assumptions of the water resources supply system of the south-to-north water diversion project, the market demand function, water quality utility function and water quality improvement cost function of the water resources supply chain are established. The multi-objective models of the water resources supply chain under the centralized decision-making, wholesale price contract and revenue sharing water quality improvement cost sharing contract are constructed respectively, and the corresponding coordination strategies are discussed. Finally, the conclusion is verified by numerical analysis. The research shows that there is a conflict between water quality utility and economic benefits; wholesale price contract can not achieve the coordination of the supply chain; and revenue sharing-water quality improvement cost sharing contract can achieve the coordination of water quality benefit objectives and Pareto improvement of economic objectives.