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Evaluation of the symbiosis level of the water-energy-food complex system based on the improved cloud model: a case study in Heilongjiang Province

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Abstract

As the conflict between the supply and demand of resources intensifies, it is critical to deeply study the important relationships and symbiotic evolution mechanisms among water resource development and utilization, energy production, agriculture, and the socioeconomic system to promote multiresource synergy management. This study introduced symbiosis theory to build a regional water-energy-food complex system in which the water-energy-food nexus was the main body and the social-economic-natural system was the external environment. Then, a symbiosis evaluation index system was established from three dimensions, including the symbiotic unit, symbiotic relationship, and symbiotic environment. Using the improved cloud model, we judged the symbiosis level of the water-energy-food complex system in Heilongjiang Province from 2010 to 2019. The results indicated that (1) the symbiosis level of the provincial water-energy-food complex system, symbiotic unit, and symbiotic environment was on the rise from level II in 2010 to level IV in 2019, and the symbiosis level of the symbiotic unit fluctuated between level III and level IV. The system exhibited an overall strong symbiosis state. (2) The weights of the three criteria were ranked as symbiotic environment > symbiotic unit > symbiotic relationship. The state of the social-economic-natural system could be considered a “monitor” of the symbiosis level, the symbiotic unit was an important basis for the evolution of the complex system, and the symbiotic relationship was the shortcoming of the system symbiosis enhancement. (3) The trade-offs between food production and water savings constrained socioeconomic development in the province. The resource demands of the economic and social systems and the emissions to the natural system that occurred during the resource exploitation and utilization processes were important factors affecting the coordinated development of the studied system. Overall, the experimental results were consistent with the research subjects’ actual situations, and the government should promote the regional three-way flow of social, natural, and economic resources to allow the targeted management of multiresource security.

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The datasets used and or analyzed during the current study are available from the corresponding author on reasonable request.

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Funding

This research was funded by funds from the National Natural Science Foundation of China (No. 52009019) and the Natural Science Foundation of Heilongjiang Province (No. LH2019E012).

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All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by Yabin Fu, Yongtai Ren, and Wei Pei. The first draft of the manuscript was written by Yabin Fu, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Yongtai Ren.

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Fu, Y., Ren, Y. & Pei, W. Evaluation of the symbiosis level of the water-energy-food complex system based on the improved cloud model: a case study in Heilongjiang Province. Environ Sci Pollut Res 30, 22963–22984 (2023). https://doi.org/10.1007/s11356-022-23555-y

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  • DOI: https://doi.org/10.1007/s11356-022-23555-y

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