Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/15991
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dc.contributor.authorFazle Rabbi, Sheikh Mohammaden
dc.contributor.authorLinser, Rasmusen
dc.contributor.authorHook, James Men
dc.contributor.authorWilson, Brianen
dc.contributor.authorLockwood, Peter Ven
dc.contributor.authorDaniel, Heikoen
dc.contributor.authorYoung, Iainen
dc.date.accessioned2014-10-30T16:26:00Z-
dc.date.issued2014-
dc.identifier.citationCommunications in Soil Science and Plant Analysis, 45(11), p. 1523-1537en
dc.identifier.issn0010-3624en
dc.identifier.issn1532-2416en
dc.identifier.urihttps://hdl.handle.net/1959.11/15991-
dc.description.abstractUnderstanding the changes in soil organic matter (SOM) composition during aggregate formation is crucial to explain the stabilization of SOM in aggregates. The objectives of this study were to investigate (i) the composition of SOM associated with different aggregates and size-density fractions and (ii) the role of selective preservation in determining the composition of organic matter in aggregate and size-density fractions. Surface soil samples were collected from an Alfisol on the Northern Tablelands of NSW, Australia, with contrasting land uses of native pasture, crop-pasture rotation and woodland. Solid-state 13C cross-polarization and magic angle spinning (CPMAS) nuclear magnetic resonance (NMR) spectroscopy was used to determine the SOM composition in macroaggregates (250-2000 μm), microaggregates (53-250 μm), and <53-μm fraction. The chemical composition of light fraction (LF), coarse particulate organic matter (cPOM), fine particulate organic matter (fPOM), and mineral-associated soil organic matter (mSOM) were also determined. The major constituent of SOM of aggregate size fractions was O-alkyl carbon, which represented 44-57% of the total signal acquired, whereas alkyl carbon contributed 16-27%. There was a progressive increase in alkyl carbon content with decrease in aggregate size. Results suggest that SOM associated with the <53-μm fraction was at a more advanced stage of decomposition than that of macroaggregates and microaggregates. The LF and cPOM were dominated by O-alkyl carbon while alkyl carbon content was high in fPOM and mSOM. Interestingly, the relative change in O-alkyl, alkyl, and aromatic carbon between aggregates and SOM fractions revealed that microbial synthesis and decomposition of organic matter along with selective preservation of alkyl and aromatic carbon play significant roles in determining the composition of organic matter in aggregates.en
dc.languageenen
dc.publisherTaylor & Francis Incen
dc.relation.ispartofCommunications in Soil Science and Plant Analysisen
dc.titleCharacterization of Soil Organic Matter in Aggregates and Size-Density Fractions by Solid State 13C CPMAS NMR Spectroscopyen
dc.typeJournal Articleen
dc.identifier.doi10.1080/00103624.2014.904335en
dc.subject.keywordsCarbon Sequestration Scienceen
dc.subject.keywordsSoil Chemistry (excl Carbon Sequestration Science)en
local.contributor.firstnameSheikh Mohammaden
local.contributor.firstnameRasmusen
local.contributor.firstnameJames Men
local.contributor.firstnameBrianen
local.contributor.firstnamePeter Ven
local.contributor.firstnameHeikoen
local.contributor.firstnameIainen
local.subject.for2008050304 Soil Chemistry (excl Carbon Sequestration Science)en
local.subject.for2008050301 Carbon Sequestration Scienceen
local.subject.seo2008961402 Farmland, Arable Cropland and Permanent Cropland Soilsen
local.subject.seo2008961403 Forest and Woodlands Soilsen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolOffice of Deputy Vice-Chancellor (Research)en
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailsfazler2@une.edu.auen
local.profile.emailbwilson7@une.edu.auen
local.profile.emailplockwoo@une.edu.auen
local.profile.emailhdaniel@une.edu.auen
local.profile.emailiyoung4@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20140710-122839en
local.publisher.placeUnited States of Americaen
local.format.startpage1523en
local.format.endpage1537en
local.identifier.scopusid84901590609en
local.peerreviewedYesen
local.identifier.volume45en
local.identifier.issue11en
local.contributor.lastnameFazle Rabbien
local.contributor.lastnameLinseren
local.contributor.lastnameHooken
local.contributor.lastnameWilsonen
local.contributor.lastnameLockwooden
local.contributor.lastnameDanielen
local.contributor.lastnameYoungen
dc.identifier.staffune-id:sfazler2en
dc.identifier.staffune-id:bwilson7en
dc.identifier.staffune-id:plockwooen
dc.identifier.staffune-id:hdanielen
dc.identifier.staffune-id:iyoung4en
local.profile.orcid0000-0002-7983-0909en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:16228en
local.identifier.handlehttps://hdl.handle.net/1959.11/15991en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleCharacterization of Soil Organic Matter in Aggregates and Size-Density Fractions by Solid State 13C CPMAS NMR Spectroscopyen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorFazle Rabbi, Sheikh Mohammaden
local.search.authorLinser, Rasmusen
local.search.authorHook, James Men
local.search.authorWilson, Brianen
local.search.authorLockwood, Peter Ven
local.search.authorDaniel, Heikoen
local.search.authorYoung, Iainen
local.uneassociationUnknownen
local.identifier.wosid000337593500008en
local.year.published2014en
local.subject.for2020410604 Soil chemistry and soil carbon sequestration (excl. carbon sequestration science)en
local.subject.for2020410101 Carbon sequestration scienceen
local.subject.seo2020180605 Soilsen
Appears in Collections:Journal Article
School of Environmental and Rural Science
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