县域玉米生产系统产量-经济-碳排放协同优化措施

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中图分类号：F326.11；X322 文献标志码：A 文章编号：2095-6819（2025）06-1529-09 doi：10.13254/j.jare.2025.0494

Synergistic optimizationmeasures foryield-economy-carbonemision incounty-level maize production systems

CUI Shilei， YI Xiaoyan，RENJing*

（StateKeyLaboratoryofEficientUtlaoofableLandinCinaIstituteofAgulturalResourcesandRegioalPlaningie

Academy of Agricultural Sciences，Beijing 1Ooo81， China）

Abstract：Toclarifytecurentstatusofthcouty'saeproductionsystemandtodevelopsyergisticoptizationstrategiesforield economic-carboemissons，thisstudyquantifedthcarbnfotprintofmaizeproductionusinglifecycleassessmnt（LCA）basednfar householdsurveydata.Italsouseddataenvelopmentanalysis（DEA）toasessthetheoreticaloptimizationpotentialofyieldcooy carbonemisionswithinthecounty'smaizeproductionsystembyintegratinginputandoutputdata.TheresultsshowedthatthnputsofN， P2O5， K2O ， pesticides，diesel，and seeds were 279.2，127.3，115.1，6.5，80.3，and31.9 kg⋅hm-2 ，respectively.The electricity input was 244.3 （20 kWh⋅hm-2 .Thecorrespondingouputsicludedyield，neteconomicprofit，andcarbonfooprintwere7784.7g·hm2，936.6yan·hm， and 5.9t CO2-eq ⋅hm-2 ，respectively.By implementing management practices and intervention plans that setthe application rates of N， P2O5， K2O ，pesticides，and seeds at 248.1， 96.9， 91.0，5.6，and 30.3 kg⋅hm-2 ，respectively，the maize production system achieved input reductions ranging from 5.1% 一 27.5% .At the same time，net economic profit and yields increased by 42.1% and 19.9 % ，respectively，while the carbon footprint was reduced by 18.3% . Therefore，the development of fertilizer，pesticide，and seeding management measures and implementationpanscnacevesyegistcoptimzationofieldfcienyarbonmissionrductioinecounty'saieproduction system，which is conducive to the transition of agriculture to sustainable production.

Keywords：maize; yield; carbon emission; synergistic optimization; LCA + DEA model

玉米（ZeamaysL.）作为主粮作物之一，是全球粮食安全的关键支柱。（剩余18312字）