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Carbon sink potential of biosolid reclaimed mine tailings

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dc.contributor.author Antonelli, P.M.
dc.contributor.author Gardner, W.G.
dc.contributor.author Broersma, K.
dc.contributor.author Karakatsoulis, J.
dc.date.accessioned 2012-10-11T22:34:13Z
dc.date.available 2012-10-11T22:34:13Z
dc.date.issued 2012
dc.identifier.uri http://hdl.handle.net/2429/43372
dc.description.abstract Surface mining can decrease carbon (C) but reclamation can improve soil quality and promote plant growth while restoring the terrestrial C sink. The objective of this study was to determine the effects of biosolids on the C storage capacity of mine tailings over time. Changes in C, nitrogen (N) and plant production over a 13 year period at a deactivated tailings site at Highland Valley Copper mine situated in interior British Columbia, were evaluated. Soil and biomass samples were taken in 2011 and compared to data from a study originally established in 1998. A randomized block design was used and the treatments included a control (no biosolids) and biosolids at application rates of 150 and 250 Mg ha⁻¹. Data was compiled in a chronosequence (representing years 0, 1, 2, and 13 years of reclamation) and analyzed. Biosolids increased total C, N and plant biomass while lowering the C:N ratio. Tailings C concentrations ranged from 1.4% for the control up to 17.2% for the 250 Mg ha⁻¹ treatment. Depending on the biosolid application rate, tailings sequestered up to 14 Mg C ha⁻¹ yr⁻¹ during the 13 years of reclamation. The results show that the use of biosolids during reclamation can improve the C sequestering capacity of mine tailings, which is beneficial to the restoration of the terrestrial C sink and the global C cycle. en
dc.language.iso eng en
dc.relation.ispartof B.C. Mine Reclamation Symposium 2012 en
dc.relation.ispartofseries British Columbia Mine Reclamation Symposium 2012 en
dc.subject carbon sequestration en
dc.subject carbon to nitrogen ratio en
dc.subject mine reclamation en
dc.subject municipal sewage sludge en
dc.title Carbon sink potential of biosolid reclaimed mine tailings en
dc.type Text en
dc.type.text Conference Paper en
dc.description.affiliation Applied Science, Faculty of en
dc.description.affiliation Non UBC en
dc.description.reviewstatus Unreviewed en
dc.rights.copyright British Columbia Technical and Research Committee on Reclamation en
dc.description.scholarlevel Other en

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