Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, People's Republic of China; Jilin Provincial Key Laboratory of Water Resources and Environment, Jilin University, Changchun 130021, People's Republic of China; College of New Energy and Environment, Jilin University, Changchun 130021, People's Republic of China; Haihe River, Huaihe River and Xiaoqinghe River Basin Water Conservancy Management and Service Center of Shandong Province, Jinan 250100, People's Republic of China.
Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, People's Republic of China; Jilin Provincial Key Laboratory of Water Resources and Environment, Jilin University, Changchun 130021, People's Republic of China; College of New Energy and Environment, Jilin University, Changchun 130021, People's Republic of China; Institute of Water Resources and Environment, Jilin University, Changchun 130021, People's Republic of China.
Sci Total Environ. 2022 Feb 1;806(Pt 1):150497. doi: 10.1016/j.scitotenv.2021.150497. Epub 2021 Sep 23.
Resource-based regions (RBRs) have made significant contributions to the social and economic development of nations. The long-term and high-intensity development of resources puts tremendous pressure on water, energy and food resources and the ecological environment. Exploring the water-energy-food nexus (WEF nexus, WEFN) of RBRs is key to making informed decisions about regional sustainable development. In this study, a feedback model for the WEFN of RBRs was developed using a system dynamics approach. The WEFN model not only describes the WEFN system from both the supply and demand sides, but also classifies WEF resources. Using Daqing, China, as a case study, five future scenarios were designed to explore the impacts of real policies designed by different government departments on the WEFN system. Comparing the predicted results of a scheme for business as usual, a scheme for developing bioenergy, a scheme for adjustment of the production structure, a scheme for strengthening the development of water and food resources and a scheme for saving WEF resources revealed that the schemes for adjustment of the production structure and for saving WEF resources will not only improve the security of WEF resources, but also reduce pollution of the water environment by human activities, which is conducive to improving the overall benefits of the WEFN system. Finally, some practical suggestions are put forward to promote the coordinated development of the WEFN system. The WEFN model is a multi-centric tool for integrated resources management, and can be expanded to other RBRs and provides scientific support for decision-makers.
资源型地区（RBRs）为国家的社会和经济发展做出了重大贡献。资源的长期高强度开发对水、能源和粮食资源以及生态环境造成了巨大压力。探索 RBRs 的水-能源-粮食关系（WEF 关系，WEFN）是做出区域可持续发展明智决策的关键。在本研究中，采用系统动力学方法开发了 RBRs 的 WEFN 反馈模型。WEFN 模型不仅从供需两方面描述了 WEFN 系统，还对 WEF 资源进行了分类。以中国大庆为例，设计了五个未来情景，以探讨不同政府部门制定的实际政策对 WEFN 系统的影响。比较了照常营业方案、发展生物能源方案、调整生产结构方案、加强水和粮食资源开发方案以及节约 WEF 资源方案的预测结果表明，调整生产结构和节约 WEF 资源的方案不仅将提高 WEF 资源的安全性，而且还将减少人类活动对水环境的污染，有利于提高 WEFN 系统的整体效益。最后，提出了一些促进 WEFN 系统协调发展的实际建议。WEFN 模型是一种综合资源管理的多中心工具，可以扩展到其他 RBRs 并为决策者提供科学支持。
