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TitleProcessing of 13C glucose in mineral soil from aspen spruce and novel ecosystems in the Athabasca oil sands region
Publication TypeJournal Article
Year of Publication2013
AuthorsNorris, C. E., Quideau S. A., & Macey D. E.
Volume71
Pagination8 pages
PublisherApplied Soil Ecology
Publication Languageeng
Keywordsanalytical methodology, federal government, microbiology, trees, UofA
Abstract

Microbial composition is known, on similar soil types, to vary based on differing organic matter inputs, or stand composition. Fine-textured luvisolic soils, which dominate the upland boreal forests of Western Canada, support a canopy cover of aspen (Populus tremuloides Michx.), white spruce (Picea glauca (Moench) Voss) or a mixture of the two. These soils then reflect different belowground biogeochemical processing of organic matter. Novel, anthropogenic soils formed from a combination of peat litter and fine textured mineral soil, are now also a part of the landscape in the western boreal. This study set out to determine if a simple labeled compound (13 C glucose) was processed differently by soils from the two dominant stand types (aspen and spruce) and from an anthropogenic (newly reclaimed) site. Results indicate that while all three soils rapidly incorporated and respired the labeled carbon, each maintained a distinct microbial community structure (as evidenced by phospholipid fatty acid analysis) throughout the 300 hour experiment. Therefore soils with different microbial communities from varied organic matter inputs decompose organic carbon by different processes, even in the case of simple labile compounds.

URLhttp://www.cfs.nrcan.gc.ca/pubwarehouse/pdfs/35815.pdf
Locational Keywords

Athabasca Oil Sands Region (AOSR)

Active Link

http://www.worldcat.org/oclc/851508740

Group

OSEMB

Citation Key53341

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