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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_US
dc.language.iso eng en_US
dc.relation.ispartofseries British Columbia Mine Reclamation Symposium 2012 en_US
dc.subject carbon sequestration en_US
dc.subject carbon to nitrogen ratio en_US
dc.subject mine reclamation en_US
dc.subject municipal sewage sludge en_US
dc.title Carbon sink potential of biosolid reclaimed mine tailings en_US
dc.type text en_US
dc.type.text conference Paper en_US
dc.description.affiliation Applied Science, Faculty of en_US
dc.description.affiliation Non UBC en_US
dc.description.reviewstatus Unreviewed en_US
dc.rights.copyright British Columbia Technical and Research Committee on Reclamation en_US
dc.description.scholarlevel Other en_US


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