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dc.contributor.authorIbell, Paulaen_US
dc.contributor.authorXu, Zhihongen_US
dc.contributor.authorBlumfield, Timen_US
dc.contributor.authorNester, M.en_US
dc.contributor.authorBubb, K.en_US
dc.contributor.editorZhihong Xu, Chris E Johnson, Chengrong Chen, Timothy J Blumfielden_US
dc.date.accessioned2017-04-24T09:55:43Z
dc.date.available2017-04-24T09:55:43Z
dc.date.issued2007en_US
dc.date.modified2008-04-28T01:06:49Z
dc.identifier.urihttp://hdl.handle.net/10072/17975
dc.description.abstractTThe effects of routine and luxury weed control and fertilization treatments on diameter, height, carbon (d13C) and nitrogen (d15N) isotope composition in foliage were assessed in an 8-year-old, F1 hybrid pine (Pinus elliottii var. elliottii Pinus caribaea var. hondurensis) plantation, on typical sandy soils in southeast Queensland. The aim of this research was to identify how weed control and fertilization treatments affect nitrogen nutrition and water use in F1 hybrid pine plantations, together with tree growth. The results have indicated that a lack of weed competition has shown greater potential for height and diameter at breast height (Dbh) increment and d15N in the foliage. A strong correlation between growth and d15N existed for all canopy positions, demonstrating that foliar d15N may prove to be a better indicator of growth indices in the canopy than total foliar N concentrations alone. These differences could be in part due to discrimination against 15N by soil micro-fauna, during the processes of decomposition and mineralization and as a result of leaching of lighter 14N, where no weed cover exists. These results indicate that in an 8-year-old F1 hybrid pine plantation, luxury weed control treatments significantly affected foliar d15N, but not foliar d13C, nor foliar N or C concentrations. It is therefore concluded that luxury weed control treatments result in both greater height and Dbh increment and an increased pool of 15N abundance available for tree uptake as reflected in the foliage of 8-year-old F1 hybrid pine trees at this siteen_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.format.extent56732 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherCentre for Forestry and Horticultural Researchen_US
dc.publisher.placeGriffith University, Brisbaneen_US
dc.publisher.urihttp://www.griffith.edu.au/conference/isfs2007/en_AU
dc.relation.ispartofstudentpublicationYen_AU
dc.relation.ispartofconferencenameISFS 2007en_US
dc.relation.ispartofconferencetitleLinking local management to global change challenges: The Proceedings of the International Symposium on Forest Soils and Ecosystem Healthen_US
dc.relation.ispartofdatefrom2007-08-19en_US
dc.relation.ispartofdateto2007-08-23en_US
dc.relation.ispartoflocationQueensland, Australiaen_US
dc.rights.retentionYen_AU
dc.subject.fieldofresearchcode300604en_US
dc.titleEffects of establishment silviculture on carbon and nitrogen isotope compositions and tree growth in a F1 hybrid pine plantation of southeast Queenslanden_US
dc.typeConference outputen_US
dc.type.descriptionE1 - Conference Publications (HERDC)en_US
dc.type.codeE - Conference Publicationsen_US
gro.facultyGriffith Sciences, Griffith School of Environmenten_US
gro.rights.copyrightCopyright remains with the authors 2007. The attached file is posted here with permission of the copyright owners for your personal use only. No further distribution permitted. For information about this conference please refer to the publisher's website or contact the authors.en_AU
gro.date.issued2007
gro.hasfulltextFull Text


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