大型跨流域调水工程"经济合理"理论框架与实现路径OA

A framework for allocating water resources between basins and regions is being developed as part of China's major national water network project,which aims to achieve spatially balanced water resource allocation.Large-scale inter-basin water transfer projects are important components of the national water network,with both public and commercial benefits.At the same time,these projects are often characterized by long water transfer routes,extensive coverage,numerous land acquisitions and resettlements,and large investment scales.The"economic rationality"of such projects is a complex,multidimensional issue with multiple objectives that must be addressed urgently. In response to the strategic demands for assuring national water security and building the national water network during the new development phase,this study conducted a systematic analysis of the connotation and composition of"economic rationality"for these projects.In the meantime,a theoretical framework was developed that identified multi-objective optimization as the systemic driver,coupling and synergy as the foundational thread,safety and stability as the constraint boundary,and dynamic adaptation as the developmental space.Based on the theoretical framework and existing engineering practical experience,implementation pathways such as functional demonstration,scale control,layout optimization,and mechanism innovation were proposed. The findings show that achieving"economic rationality"in large-scale inter-basin water transfer projects is a complex system issue that affects the entire project lifecycle,necessitating an optimal balance of macro-level strategies and micro-level practices.The key to such projects lies in coordinating inputs and outputs,controlling engineering investment and costs,maximizing the comprehensive benefits of the project,and ensuring the stable operation of the project.It is crucial to stress that"economic rationality"is a systematic and relative concept for large-scale inter-basin water transfer projects.It is imperative to dialectically balance the relationship between"economy"and"rationality"rather than focusing solely on immediate economic and financial benefits.A broader perspective grounded in long-term national development and overarching strategic interests is needed,which holistically coordinates economic feasibility with social and ecological sustainability to maximize comprehensive benefits.Promoting these projects can help attract more social capital,especially private capital,to participate in project construction and operation through diverse forms.This contributes to establishing a diversified,multi-level,and multi-channel investment and financing system,thereby alleviating fiscal pressure on the government.Furthermore,while protecting public interests,implementing market-oriented management mechanisms can improve project management efficiency,optimize resource allocation,and lower operational costs.This enables projects to operate more efficiently and deliver stable,long-term services to society. This research aims to provide theoretical support and decision-making references for promoting the high-quality development and sustainable operation of large-scale inter-basin water transfer projects in China.The"economic rationality"of such projects is critical not only for their own financial sustainability and investment returns but also for building a resilient and modern national water network,advancing the national"River Basin Strategy",and fostering high-quality economic and social development.