Study on the Water-Energy-Food Nexus System Based on Carbon Footprint
Aiming at the relationship between sensitivity and vulnerability of water resources,energy and food,an optimal allocation model of water-energy-food Nexus system based on carbon footprint under uncertain conditions is constructed.The model takes the maximum economic benefit of the irrigation area as the objective function,the constraints of total water resources,evapotranspiration,surface water,priority use of surface water,energy are set.Taking Yehe Irrigation District as an example,the water distribution results of winter wheat and summer corn in Jingxing County,Pingshan County,Luquan District and Yuanshi County,the water consumption,crop yield and economic benefits before and after optimization were obtained.The results showed that the overall water consumption decreased by 2％after optimization,and the crop yield generally showed an increasing trend.The increase of winter wheat in Jingxing County was 12％,the increase of summer corn in Pingshan County was 11％,and the increase of overall economic benefits was between 6％and 11％.
Carbon footprintWater-energy-food nexus systemOptimized allocationYehe irrigation district
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