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Growing season carbon dioxide exchange of two contrasting peatland ecosystems

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dc.contributor.advisor Flanagan, Lawrence
dc.contributor.author Glenn, Aaron James
dc.contributor.author University of Lethbridge. Faculty of Arts and Science
dc.date.accessioned 2007-05-17T14:49:04Z
dc.date.available 2007-05-17T14:49:04Z
dc.date.issued 2005
dc.identifier.uri http://hdl.handle.net/10133/259
dc.description xii, 126 leaves : ill. (some col.) ; 29 cm. en
dc.description.abstract The CO2 flux of two peatlands in northern Alberta was examind during the 2004 growing season using eddy covariance measurements of net ecosystem exchange (NEE), chamber measurements of total ecosystem respiration, and empirical models driven by meteorological inputs. The two ecosystems, a poor fen and an extreme-rich fen, differed significantly in plant species composition, leaf area index, aboveground biomass and surface water chemistry. The mean diurnal pattern of NEE at the peak of the season was similar between the sites, however, the extreme-rich fen had a higher photosynthetic and respiratory capacity than the poor fen. Over the 6 month study, the poor fen was shown to accumulate between 2 to 3 times more carbon than the extreme-rich fen despite having a lower photosynthetic capacity. The evergreen nature of the poor fen site allowed for a longer season of net CO2 uptake than the deciduous species that dominated the extreme-rich fen. en
dc.language.iso en_US en
dc.publisher Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2005 en
dc.relation.ispartofseries Thesis (University of Lethbridge. Faculty of Arts and Science) en
dc.subject Peatlands -- Effect of atmospheric carbon dioxide on en
dc.subject Wetlands -- Effect of atmospheric carbon dioxide on en
dc.subject Atmospheric carbon dioxide -- Environmental aspects en
dc.subject Carbon cycle (Biogeochemistry) -- Research en
dc.subject Dissertations, Academic en
dc.title Growing season carbon dioxide exchange of two contrasting peatland ecosystems en
dc.type Thesis en
dc.publisher.faculty Arts and Science
dc.publisher.department Department of Biological Sciences

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