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1 Wang, J.; Zhou, H.; Tso, G. K. F.; Hsun, C. P.; Tua, C.; Zheng, T. 2023. Integrated safety assessment of water-energy-food systems based on improved substance element extensions. Journal of Water and Climate Change, jwc2023343. (Online first) [doi: https://doi.org/10.2166/wcc.2023.343]

Water resources ; Energy consumption ; Energy security ; Food security ; Food systems ; Evaluation ; Indicators / China / Beijing / Tianjin / Hebei

(Location: IWMI HQ Call no: e-copy only Record No: H052369)

https://iwaponline.com/jwcc/article-pdf/doi/10.2166/wcc.2023.343/1337783/jwc2023343.pdf
https://vlibrary.iwmi.org/pdf/H052369.pdf

(0.56 MB) (568 KB)

To explore the integrated security of water-energy-food system, 26 indicators were selected from six aspects: water security, energy security, food security, water-energy system security, water-energy system security, energy-food system security; the frequency analysis method was used to construct the integrated security evaluation index system for water-energy-food systems. Then, the matter-element expansion model was refined and used to assess the overall security of the water, energy and food system in the Beijing-Tianjin-Hebei region. The evaluation metrics used to assess the overall security of water, energy, and food system were examined and researched from two dimensions: time and space. This model adequately represents the overall security of the water-energy-food system, as demonstrated by empirical studies. Comparisons are made between the evaluation results of the modified model and those of the conventional matter-element inflationary model, confirming the feasibility and validity of the modified model. Finally, the main factors affecting the security of the water-energy-food system in the Beijing-Tianjin-Hebei region are discussed using the index weight and obstacle degree model. Relevant suggestions are also provided to enhance the security of the water-energy-food system.