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1、PUBLICATIONSGlobalBiogeochemicalCyclesRESEARCHARTICLEDifferentsourcesanddegradationstateofdissolved,10.1002/2015GB005307particulate,andsedimentaryorganicmatterKeyPoints:alongtheEurasianArcticcoastalmargin•Comparisonbetweendissolved(colloidal),particulate,andsediment
2、aryEmmaKarlsson1,2,JohanGelting1,TommasoTesi1,2,3,BartvanDongen4,AugustAndersson1,2,OCincoastalArctic5,6,75,75,71,2IgorSemiletov,AlexanderCharkin,OlegDudarev,andÖrjanGustafsson•DOC/COCderivedfromtopsoilOC(65%),marineOC(25%),andICD-OC12(9%)DepartmentofEnvironmentalSc
3、ienceandAnalyticalChemistry,StockholmUniversity,Stockholm,Sweden,BolinCentre3•OCpoolsincoastalArcticmayforClimateResearch,StockholmUniversity,Stockholm,Sweden,InstituteofMarineSciences,ISMAR-CNR,Bologna,Italy,respondondifferenttimescalesto4SchoolofEarth,Atmospherica
4、ndEnvironmentalSciencesandWilliamsonResearchCentreforMolecularEnvironmentalclimatechange5Science,UniversityofManchester,Manchester,UK,PacificOceanologicalInstitute,RussianAcademyofSciences,67Vladivostok,Russia,InternationalArcticResearchCenter,UniversityAlaskaFairban
5、ks,Fairbanks,Alaska,USA,NationalSupportingInformation:ResearchTomskPolytechnicUniversity,Tomsk,Russia•SupportingInformationS1•TableS4•TableS5AbstractThawingArcticpermafrostcausesmassivefluvialanderosionalreleasesofdissolvedandparticulateorganiccarbon(DOCandPOC)tocoas
6、talwaters.HereweinvestigatehowdifferentsourcesanddegradationofCorrespondenceto:remobilizedterrestrialcarbonmayaffectlarge-scalecarboncycling,bycomparingmolecularanddual-isotopeE.Karlsson,emmakarlssons@gmail.comcompositionofwaterbornehighmolecularweightDOC(>1kD,akaco
7、lloidalOC),POC,andsedimentaryOC(SOC)acrosstheEastSiberianArcticShelves.LigninphenolfingerprintsdemonstratealongitudinaltrendinrelativecontributionofterrestrialsourcestocoastalOC.WaxlipidsandcutinswerenotdetectedincolloidalCitation:Karlsson,E.,J.Gelting,T.Tesi,B.vanor
8、ganiccarbon(COC),incontrasttoPOCandSOC,suggestingthatdifferentterrestrialcarbonpoolspartitionDongen,A.Andersson,I.Semiletov,A.intodifferen