Show simple item record

dc.contributor.authorChen, CR
dc.contributor.authorXu, ZH
dc.contributor.authorMathers, NJ
dc.contributor.editorRichard L Mulvaney, Warren A Dick
dc.date.accessioned2017-05-03T13:57:41Z
dc.date.available2017-05-03T13:57:41Z
dc.date.issued2004
dc.date.modified2009-09-07T23:31:30Z
dc.identifier.issn0361-5995
dc.identifier.urihttp://hdl.handle.net/10072/5272
dc.description.abstractSoil C dynamics are not only important to both productivity and sustainability of terrestrial ecosystems, but also contribute significantly to global C cycling. Adjacent natural forest (NF), and first (1R) and second rotation (2R) hoop pine (Araucaria cunninghamii Aiton ex A. Cunn.) plantations in southeast Queensland, Australia, were selected to investigate the effects of conversion of NF to hoop pine plantations and forest management (harvesting and site preparation of plantation) on the size and the nature of C pools in surface (0-10 cm) soils using chemical extraction, laboratory incubation and 13C cross-polarization with magic-angle-spinning nuclear magnetic resonance spectroscopy (13C CPMAS NMR). Conversion from NF to hoop pine plantations not only led to the reduction of soil total C (by 19.8%), water-soluble organic C (WSOC) (by 17.7%), CaCl2-extractable organic C (by 38.8%), and hot water-extractable organic C (HWEOC) (by 30.9%) and bioavailability of soil C (as determined by CO2 evolved in the incubation), but also to a change in chemical composition of soil C with lower O-alkyl C and higher alkyl C under the 1R plantation compared with NF. Harvesting and site preparation did not significantly affect total soil C and most labile C pools (except for a decrease in WSOC), but led to a lower signal intensity in the alkyl C spectral region and a decreased alkyl C/O-alkyl C (A/O-A) ratio in the soil under the 2R compared with the 1R plantation. The shifts in the amount and nature of soil C following forest conversion may be attributed to changes in litter inputs, microbial diversity and activity, and the disturbance of soil during harvesting and site preparation.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent2893702 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherSoil Science Society of America
dc.publisher.placeUSA
dc.publisher.urihttp://soil.scijournals.org/
dc.publisher.urihttp://soil.scijournals.org/cgi/content/abstract/68/1/282
dc.relation.ispartofpagefrom282
dc.relation.ispartofpageto291
dc.relation.ispartofjournalSoil Science Society of America Journal
dc.relation.ispartofvolume68
dc.subject.fieldofresearchEnvironmental sciences
dc.subject.fieldofresearchBiological sciences
dc.subject.fieldofresearchAgricultural, veterinary and food sciences
dc.subject.fieldofresearchcode41
dc.subject.fieldofresearchcode31
dc.subject.fieldofresearchcode30
dc.titleSoil Carbon Pools in Adjacent Natural and Plantation Forests of Subtropical Australia
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.rights.copyright© The Author(s) 2004 . This is the author-manuscript version of this paper. It is posted here with permission of the copyright owners for your personal use only. No further distribution permitted. For information about this journal please refer to the publisher's website or contact the authors.
gro.date.issued2004
gro.hasfulltextFull Text
gro.griffith.authorXu, Zhihong
gro.griffith.authorChen, Chengrong


Files in this item

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record