Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/21781
Full metadata record
DC FieldValueLanguage
dc.contributor.authorXimenes, Fabianoen
dc.contributor.authorBjördal, Charlotteen
dc.contributor.authorCowie, Annetteen
dc.contributor.authorBarlaz, Mortonen
dc.date.accessioned2017-09-04T11:18:00Z
dc.date.issued2015en
dc.identifier.citationWaste Management, v.41, p. 101-110en
dc.identifier.issn0956-053Xen
dc.identifier.urihttps://hdl.handle.net/1959.11/21781en
dc.description.abstractWood products in landfill are commonly assumed to decay within several decades, returning the carbon contained therein to the atmosphere, with about half the carbon released as methane. However, the rate and extent of decay is not well known, as very few studies have examined the decay of wood products in landfills. This study reports on the findings from landfill excavations conducted in the Australian cities of Sydney and Cairns located in temperate and tropical environments, respectively. The objective of this study was to determine whether burial of the wood in warmer, more tropical conditions in Cairns would result in greater levels of decay than occurs in the temperate environment of Sydney. Wood samples recovered after 16–44 years in landfill were examined through physical, chemical and microscopic analyses, and compared with control samples to determine the carbon loss. There was typically little or no decay in the wood samples analysed from the landfill in Sydney. Although there was significant decay in rainforest wood species excavated from Cairns, decay levels for wood types that were common to both Cairns and Sydney landfills were similar. The current Intergovernmental Panel on Climate Change (IPCC, 2006) default decay factor for organic materials in landfills is 50%. In contrast, the carbon loss determined for Pinus radiata recovered from Sydney and Cairns landfills was 7.9% and 4.4%, respectively, and 0% for Agathis sp. This suggests that climate did not influence decay, and that the more extensive levels of decay observed for some wood samples from Cairns indicates that those wood types were more susceptible to biodegradation. Microscopic analyses revealed that most decay patterns observed in samples analysed from Sydney were consistent with aerobic fungal decay. Only a minor portion of the microbial decay was due to erosion bacteria active in anaerobic/near anaerobic environments. The findings of this study strongly suggest that models that adopt current accepted default factors for the decay of wood in landfills greatly overestimate methane emissions.en
dc.languageenen
dc.publisherPergamon Pressen
dc.relation.ispartofWaste Managementen
dc.titleThe decay of wood in landfills in contrasting climates in Australiaen
dc.typeJournal Articleen
dc.identifier.doi10.1016/j.wasman.2015.03.032en
dc.subject.keywordsForestry Sciencesen
local.contributor.firstnameFabianoen
local.contributor.firstnameCharlotteen
local.contributor.firstnameAnnetteen
local.contributor.firstnameMortonen
local.subject.for2008070599 Forestry Sciences not elsewhere classifieden
local.subject.seo2008860599 Wood, Wood Products and Paper not elsewhere classifieden
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailacowie4@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20170720-095813en
local.publisher.placeOxford, United Kingdomen
local.format.startpage101en
local.format.endpage110en
local.peerreviewedYesen
local.identifier.volume41en
local.contributor.lastnameXimenesen
local.contributor.lastnameBjördalen
local.contributor.lastnameCowieen
local.contributor.lastnameBarlazen
dc.identifier.staffune-id:acowie4en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:21972en
local.identifier.handlehttps://hdl.handle.net/1959.11/21781en
dc.identifier.academiclevelAcademicen
local.title.maintitleThe decay of wood in landfills in contrasting climates in Australiaen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.description.statisticsepubsVisitors: 7<br />Views: 10<br />Downloads: 0en
Appears in Collections:Journal Article
Files in This Item:
2 files
File Description SizeFormat 
Show simple item record

SCOPUSTM   
Citations

9
checked on Nov 26, 2018

Page view(s)

32
checked on May 2, 2019
Google Media

Google ScholarTM

Check

Altmetric


Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.