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浙江省森林土壤有机碳空间变异及影响因子研究.docx

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浙江省森林土壤有机碳空间变异及影响因子研究 Title:SpatialVariabilityofSoilOrganicCarboninForestsinZhejiangProvinceandItsInfluencingFactors Abstract: Soilorganiccarbon(SOC)isakeyindicatorofsoilfertilityandplaysacrucialroleincarboncyclingandclimatechangemitigation.Inthisstudy,weinvestigatedthespatialvariabilityofSOCinforestsacrossZhejiangProvinceandidentifiedtheinfluencingfactors.AtotalofXXsoilsampleswerecollectedfromXXforestsitesinZhejiangProvince.TheSOCcontentwasdeterminedusingastandardlaboratorymethod.Soilproperties,climatevariables,vegetationcharacteristics,andland-usepatternsweremeasuredorobtainedfromexistingdatabases.Spatialanalysistechniques,includinggeostatisticsandregressionanalysis,wereappliedtoassessthespatialpatternsofSOCandidentifythemaininfluencingfactors. Introduction: Soilorganiccarbon(SOC)isthelargestterrestrialcarbonstockandplaysanessentialroleinmaintainingsoilhealthandecosystemfunctioning.Itisparticularlyimportantinforests,whichcoverasignificantproportionofthelandareainZhejiangProvince.UnderstandingthespatialvariabilityofSOCinforestsandidentifyingtheinfluencingfactorsarecrucialforsustainableforestmanagementandcarbonsequestration.ThisstudyaimstoinvestigatethespatialpatternsofSOCinZhejiangProvince'sforestsandtoidentifythekeyfactorsthatinfluenceitsdistribution. Methods: 1.Soilsamplecollection:XXsoilsampleswerecollectedfromXXforestsitesacrossZhejiangProvince.SamplesweretakenatadepthofXXcmusingasoilauger.Thesamplesweretransportedtothelaboratoryforfurtheranalysis. 2.Soilanalysis:TheSOCcontentineachsoilsamplewasdeterminedusingastandardlaboratorymethod,suchastheWalkley-Blackmethod.Othersoilproperties,includingpH,soiltexture,andnutrientcontent,werealsomeasured. 3.Climatevariables:Climatevariables,suchastemperatureandprecipitation,wereobtainedfromlocalmeteorologicalstationsorclimatedatabases.ThesevariableswereusedtoassesstheirpotentialinfluenceonSOCdistribution. 4.Vegetationcharacteristics:Vegetationdata,includingforesttype,standage,andabovegroundbiomass,werecollectedfromfieldsurv