Measurement and Zoning of the Full-cycle Carbon Balance of Food Production in the Middle and Lower Reaches of the Yellow River from the Dynamic and Static Perspectives
The purposes of this study are to construct a carbon budget system for the full cycle of food production,to measure the carbon balance level of food production in the middle and lower reaches of the Yellow River from the dynamic and static perspective,and to put forward differentiated control strategies through the zoning of the carbon balance level,to provide support and reference for comprehensively reflecting the carbon balance level of food production and synergistically promoting green food production.The research methods of life cycle assessment,carbon conversion coefficient method,empirical formula,static balance index,dynamic balance index and information entropy model are used.The results show that:1)carbon emissions and carbon sinks of food production in the middle and lower reaches of the Yellow River increase with a spatial trend of"low in the northwest and high in the southeast".2)The static balance index of the carbon balance of food production in the middle and lower reaches of the Yellow River shows a distribution of"low in the northwest and high in the southeast",with fluctuating and decreasing regional averages,and four types of evolutionary trends,including helicoidal,straight-down,U-shape and inverted U-shape,exist in each city.The dynamic balance index of the carbon balance of food production exhibits significant spatiotemporal variations.3)Carbon balance zoning of food production in the middle and lower reaches of the Yellow River are distributed as"imbalance in the northwest and balance in the southeast",and the structural orderliness of the pattern fluctuates through"more ordered-less ordered-ordered-disordered".In conclusion,there is still an imbalance in the carbon balance of food production in some cities in the middle and lower reaches of the Yellow River from the perspective of contribution,which requires further implementation of targeted and differentiated green food production strategies.
carbon balance of food productionstatic balance leveldynamic balance levellife cycle assessmentzoning patternthe middle and lower reaches of the Yellow River
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