有机肥与生物炭配施对干旱区土壤有机-无机碳库协同增汇效应的影响

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中图分类号：S157 文献标志码：A 文章编号：2096-9902（2025）22-0063-06

Abstract：Inaridandsemi-aridareas，intensiveagriculturalmeasuresaimedatincreasingsoilorganiccarbon（SOC）often causesoilacidification，whichleadstothedisolutionandlossofalargersoilinorganiccarbon（SIC）pool，formingasink enhancementparadox".Inordertobreakthisantagonisticrelationship，thestudyproposedandsystematicallyanalyzedasink enhancementstrategyforthecordinatedappicationoforganicfertlizerandbiochar.Thesynergisticeffectstemsfromthree majorcouplingmechanisms：biochar'salkalinebufferorganicfertlizerdecomposesacidtoprotectthestabilityofSICpool （chemicalsynergy）;thetwojointlypromotetheformationofsoilaggegatesandenhancethephysicalprotectionofSOC（physical synergy）;andactivatethe"biocarbonpump"efectbyoptimizingwaterandfertlizersupplytoincreasethetotalcarbon sequestrationoftheecosystem（biologicalsynergy）TheaplicationanalysisofthisstrategyinareassuchastheLoss Plateau confirmeditshugepotentialincarbonsequestration，increasedproductionandecologicalrestoration，butitssuccessrelieson "customized"solutionstailoredtolocalconditions.Inshort，theorganic-carbon-basedcolaborativestrategyprovidesascientific pathforachievingnetcarbonsequestrationinfarmlandinaridareas.Itslarge-scaleapplicationrequirestheconstructionofa "valuesuperposition”economicmodelthatcanmonetizeitsmultiplebenefits，supplementedbyacompletecarbonsinkMRV system and policy incentives.

Keywords：soilorganiccarbon（SOC）；soilinorganiccarbon （SIC）;soilcarbonsink；biocarbon;organicfertilizer

在全球气候变化减缓的框架下，土壤的固碳功能被赋予了核心地位。（剩余13766字）