SPATIO-TEMPORAL COUPLING RELATIONSHIP BETWEEN AGRICULTURAL CARBON EMISSION AND ECONOMIC GROWTH IN THE YELLOW RIVER BASIN
To clarify the contradiction between agricultural carbon emissions reduction and economic growth in the Yellow River Basin,and achieve decoupling and stable strong decoupling between agricultural carbon emissions and economic growth.By constructing an agricultural carbon emission accounting model and an agricultural carbon emission economic efficiency model,the agricultural carbon emissions of 9 provinces in the Yellow River Basin from 1997 to 2021 were calculated.Based on clarifying the regional differences and fairness evaluation of agricultural carbon emissions and agricultural added value in the basin,exploring the"coupling coordination"and"decoupling"relationships and evolutionary characteristics between agricultural carbon emission systems and economic growth systems using the coupling coordination model and Tapio decoupling model.The results were listed as follows.(1)The total agricultural carbon emissions of 9 provinces in the Yellow River Basin showed an"inverted U-shaped"fluctuation pattern of"continuous increase,stable peak,and continuous decrease",and reached its peak in 2015.The"reduction of fertilizers and pesticides"action had played a positive role in reducing carbon emissions in agricultural production,and the added value of agriculture had always been in an ideal trend of continuous increase;(2)The economic efficiency index of agricultural carbon emissions in the Yellow River Basin had significant regional differences,mainly due to the planting structure of economic crops,the scale of animal husbandry,and the level of agricultural material input in various provinces and regions;(3)The coupling and coordination state between agricultural carbon emissions and economic growth in the Yellow River Basin had basically achieved a transformation from primary imbalance to overall coordination,with the fastest transformation rate in the upstream region,the middle reaches having a moderate overall rate,and the downstream region having the most stable transformation;(4)The decoupling status between agricultural carbon emissions and economic growth in various provinces and regions of the Yellow River Basin was mainly characterized by weak decoupling and strong decoupling,indicating that the economic growth rate was significantly faster than agricultural carbon emissions under multiple scenarios,and the growth rate of carbon emissions in some years was even negative,indicating that all provinces had achieved positive results in agricultural carbon reduction work.In summary,the total agricultural carbon emissions of 9 provinces in the Yellow River Basin exceedes their peak,achieving decoupling and favorable decoupling from their economic growth,presenting a development trend of rational and advanced agricultural production structure in the basin.
Yellow River Basinagricultural carbon emissionseconomic growthspatial and temporal differenc-escoupling coordination
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