Synergetic management of the water-energy-food nexus for cropland ecosystems under climate change: Toward a multistakeholder-based systematic optimization approach

Mo Li, Yingshan Chen, Dong Liu, Min Xue, Yijia Wang and Qiang Fu

Renewable Energy, 2024, vol. 220, issue C

Abstract: The optimal management of the water-energy-food (WEF) nexus in cropland ecosystems (CEs) can help promote food security and resource sustainability. However, the intrinsic interactions among multisource energy, water, the yield-formation process, and the economic-environmental effect have not been systematically quantified and determined. This paper constructs a WEF-based cooperative optimization model in CEs under climate-change conditions, which is capable of reflecting the reciprocal transformations and coordinated interactions among light energy, thermal energy and biomass energy in CEs and of balancing the energy/water use efficiency, economy and environmental factors considering the biomass residue potential. The method is tested and implemented on the Sanjiang Plain, Northeast China. The results show that (1) a cooperative relationship between energy utilization efficiencies and economic benefits was identified. For example, if the utilization efficiencies of light and heat energy increase by 1%, the economic benefits increase by 13.59%, and the biomass energy production potential increases by 10.82%. (2) The aboveground residue can be reused in power generation, carbonization, anaerobic fermentation, feed preparation and sales applications to increase the economic benefits by 3.38%–20.70%. This study contributes to a deeper understanding of multiple renewable energy management and the bound with water and food production, promoting the sustainable development of agroecosystems.

Keywords: Water-energy-food nexus; Multiple energy sources in cropland ecosystems; Biomass residue potential; Synergy and tradeoff; Optimization modeling; Climate change (search for similar items in EconPapers)
Date: 2024
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:220:y:2024:i:c:s0960148123015124

DOI: 10.1016/j.renene.2023.119597

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