Business School, Hohai University, Nanjing 211100, China.
Yangtze Institute for Conservation and Development, Hohai University, Nanjing 210098, China.
Int J Environ Res Public Health. 2020 Oct 15;17(20):7508. doi: 10.3390/ijerph17207508.
Water, energy, and food are the most important basic resources for economic and social development. In the context of global population growth, environmental degradation, and resource shortages, the interrelationship between the water, energy, and food has become increasingly important. In this paper, the city of Ordos in China was selected as a study area. Firstly, this paper sorted out relevant research literature and fully understood the concept of water-energy-food (WEF) nexus. Then, an optimization model of WEF system was constructed based on interval number multi-objective programming, which took the comprehensive coordination deviation degree of the WEF system security and carbon dioxide emission minimization as the target. At the same time, the optimization model was constructed with full consideration of constraints such as economic benefit, water resource consumption, energy production, food production and environmental pollution emission. The results showed that the production of coal, thermal power, hydropower, wind power, and food all show an upward trend. Among them, the production of hydropower has the largest change, and the food production has the smallest change. In terms of water resource utilization, food production has the largest allocation of water resources accounting for nearly 80%, followed by coal production, thermal power generation and hydropower generation. The smallest allocation is natural gas. In particular, the allocation of water for coal production and hydroelectric power generation has increased significantly. Finally, the policy recommendations were put forward to promote the sustainable development of WEF system in Ordos. The optimization research on the WEF system can help to ensure the WEF system security in Ordos and promote the sustainable development of WEF system, which also can provide reference for other regions.
水、能源和粮食是经济社会发展的最重要的基本资源。在全球人口增长、环境恶化和资源短缺的背景下，水、能源和粮食之间的相互关系变得越来越重要。本文选取中国鄂尔多斯市作为研究区。首先，本文梳理了相关研究文献，充分理解了水-能源-粮食（WEF）关系的概念。然后，基于区间数多目标规划构建了 WEF 系统优化模型，以 WEF 系统安全的综合协调偏差度和二氧化碳排放最小化为目标。同时，充分考虑经济效益、水资源消耗、能源生产、粮食生产和环境污染排放等约束条件，构建了优化模型。结果表明，煤炭、火力发电、水力发电、风力发电和粮食的产量均呈上升趋势。其中，水力发电的产量变化最大，粮食产量的变化最小。在水资源利用方面，粮食生产分配的水资源最多，占近 80%，其次是煤炭生产、火力发电和水力发电。天然气的分配量最小。特别是煤炭生产和水力发电的用水量分配显著增加。最后，提出了促进鄂尔多斯 WEF 系统可持续发展的政策建议。对 WEF 系统的优化研究有助于确保鄂尔多斯 WEF 系统的安全，并促进 WEF 系统的可持续发展，也可为其他地区提供参考。
