2003一2022年广西甘蔗种植碳收支时空变化及影响因素

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中图分类号：F326.12；X322 文献标志码：A 文章编号：1672-2043（2025）09-2454-12 doi：10.11654/jaes.2024-0782

Abstract：Thisresearchaimed toquantifythecarbonemissionsandcarbonsink duringthesugarcanecultivationphasein Guangxi， analyzedthespatiotemporalvariationsandtheirdrivingfactors.Agriculturalbudget，includingcarbonemisionsandcarbonsinks，as estimatedandalydusingtotalicultualinputs，oesidebuingamounts，andopeldroGuangxiatiticalbead CompilationofNatioalAgriculturalProductCostBenefitatasingtheesionfactoaproachndtecarbonsequestrationaeter method.Basedonthis，thekeyfactorsinfluencingagriculturalcarbonbudgetswereidentifiedusingtherevisedStochasticImpactsby RegresiononPopulation，AfluenceandTechnology（SPAT）modelThestudyrevealedthatsugarcanecultivationinGuangxicteds anetcarbonsink，withmorecarbonbeingsequestratedthanemitted.Carbonemisionsrosfrom1.3235×10tin2003 toapeakof 2.4457× （204号 10∘ t in 2013，before dropping to 1.609 1×1 06 t in 2022.Meanwhile，the carbon sink increased from 1.125 87×107 t in 2003 to 1.601 22×1 0′ （ ti022.Gnousegasemisiosintesofabonquvalentsfromfertlruse，artirlyrogfertilersretemaioue of carbon emissions， contributing between 61.25% and 72.99% of the total. Carbon emissions from straw burning also increased， rising from 28.18% to 32.16% .The regionsof Chongzuo，Naning，Laibin，and Liuzhou were identified as the mainareas where carbon emissons and carbonsinkwerecocentratedTeSTRPATanalysishighlightedtatfertilizeruse，farmingtechnologyplantingscale，andsgarcane yieldwerekeyfactorsfectingcarbonemissionsndcarbonsink，withdiferentimpactsdependingontesizeoftecultivationrea. CarbonemissosandcarbosinkinGuangxi'ssugarcaneultivationweresignificantlyuencedbyfertilierusefrmingtecolg andthe scale of cultivation.Sugarcanecultivation demostrated ahigh level of carbon sinks in Guangxi.

Keywords：sugarcane; agricultural carbon budget; carbon emission; carbon sink; STIRPAT model

广西作为我国重要的甘蔗种植区，其甘蔗种植面积占全国的 63.42%[2] 。（剩余24642字）