农业社会化服务对农地碳排放强度的影响基于规模经营和技术进步的作用效应

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关键词：农业社会化服务;农地碳排放强度；双向固定效应模型；中介效应；门槛效应中图分类号：F326.6；F321.1;X322 文献标志码：A 文章编号：2095-6819（2025）06-1581-12 doi：10.13254/j.jare.2025.0257

Impacts of agricultural socialization services oncarbonemisson intensityoffarmland：effects basedon scale management and technological progress

JIAWenxi，HELijie，HUYingen （School of Public Administration，Huazhong Agricultural University，Wuhan 43Oo7o， China）

Abstract：Toexploretheimpactofglturalsolidsrviesoncarbonesionitesityfromfarlad，tissudyivtigatedte underlying mechanismsandefectsfromtheperspectivesofscalemanagementandtechnologicalprogres.Basedonpaneldatafrom24 provincesinChinafrom2011toO20，atwo-wayfixedefectsmodelamediationeffectmodel，andaresholdefectmodelwere employed.Theresultsindicatedthatfrom2O11toO20，thelevelofagriculturalsocializedservicsinChinaexhibitedanoverallupward trend，withaogielydmsatiocIastladbiositallld regionaldisparitiesgraduallwidened.Agriculturalsocializedservicswerefoundtosignifcantlyreducecarbonemissonintesityof farmland，whichasfidybssstests.Heteroenitalysisevaledathisgatieridigiicanto diferentypesofcsorietis，gioaldistrbutios，nderalsales.Aglturalldisigatedld carbonemisionitensitybypromtingagulturalsalemanagement.Furterore，griculturalthnologicalprogessehedadual thresholdefect：whenthelevelofagriculturalmechanizationwasbelowthefistthresholdof1.929，agriculturalsocializedservices significantlyincreasedarbonemisionintesityntelevelfelletwen1929nd，asigificantnegativeimpactsed; andwhenitecedtuperteshdof5thgatietwasaeuatederefre，itiscommededtoctielyte agriculturalscalemanagementandmoderatemechanizationtechnologyaplication，enhanceagriculturalsocializedservices，and effectively reduce carbon emissions. Keywords：agriculturalsocializedservice;carboeissonintensity;twoayfixedeectsmodel;mediatingefect;thshldefect

随着经济社会的发展，全球气候变暖问题日益严重，农业是对气候变化最敏感的产业，也是世界碳排放的第二大来源。（剩余24211字）