秸秆还田对农业碳排放的影响

——基于空间溢出效应视角分析

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Abstract：Exploring theimpactstrawreturming teldsonagriculturalcarbonemissions is helpful toprovideimportant experience for improving thecomprehensiveutilizationlevel strawrealizing thelow-carbon transitionagriculture under the dual-carbon target.Based on the panel data set 3O provinces in China （excluding Hong Kong，Macao，Taiwan Tibet），thelevel strawreturning tieldsthelevelagriculturalcarbonemisions ineachprovincewere measured.Thespatialspillvereffectregional heterogeneitystrawreturming tieldsonagriculturalcarbonemissions wereempirically tested byaspatialeconometric modeling.Theresults demonstrate thatthe strawreturning tields exertsa considerable negative spatial spillverefect onagricultural carbon emissions，thatis，the strawreturning tields can efectively diminishtheintensityagriculturalcarbonemissons withinagivenregioninneighboringregions.However， the influence strawreturming to fieldson agriculturalcarbon emissons varies considerablyacrossdiferent regions，among which，thewestern region exhibits themost pronounced promotion efect onagriculturalcarbon emisionreduction，followed bythecentralregion，theeasternregiondisplaystheleastsignificantefect.Therefore，itisimperativethatthefull potential carbon sinks from straw returning to fields should bereleased，therole policyguidance should beactively strengthened，interprovincial exchanges cooperation should be promoted， the advantages each regionshould be fullleveraged inaccordance withlocalconditions，soastoadvancethegreenlow-carbondevelopmentagriculture.

Keywords：straw returning to fields；agriculturalcarbonemissions；spatial spillover effct；heterogeneityanalysis

0 引言

1 研究假说

全球变暖导致自然灾害日益频发，碳排放已然成为社会各界重点关注的问题。（剩余13835字）