{"id":{"repo_id":"lethbridge","oai_identifier":"oai:opus.uleth.ca:10133/6682"},"canonical_url":"https://search.dev.ndltd.org/etd/lethbridge/oai:opus.uleth.ca:10133/6682","repository":{"repo_id":"lethbridge","name":"University of Lethbridge","base_url":"https://opus.uleth.ca/server/oai/request"},"display":{"title":"Environmental and biological controls on carbon dioxide and methane exchange in a restored freshwater mineral-soil wetland at Frank Lake, Alberta","abstract":"Prairie pothole wetlands have been shown to be strong sinks for carbon dioxide (CO2); however, it is likely that these ecosystems are also strong emitters of methane (CH4), reducing their overall carbon (C) sequestration potential. This study presents growing season (May-September 2022) eddy covariance flux measurements of CO2 and CH4 at a prairie pothole wetland near High River, Alberta with extensive bulrush (Schoenoplectus acutus) vegetation. The study was conducted during a time-period that was warmer and had precipitation inputs that were altered from the long-term average pattern. Despite the warmer and relatively dry weather in 2022, the wetland was still an important sink for atmospheric CO2 during the study period with a net uptake of 49 g C m−2 resulting from 623 g C m−2 of photosynthesis and 575 g C m−2 of respiration. Methane flux expressed in CO2-equivalents (6 g C m-2 season-1) offset only ~12% of carbon sequestration based on CO2 only. This suggests that the valuable ecosystem service of C sequestration can still occur in a prairie pothole wetland even in warm and dry weather conditions.","abstract_html":"Prairie pothole wetlands have been shown to be strong sinks for carbon dioxide (CO2); however, it is likely that these ecosystems are also strong emitters of methane (CH4), reducing their overall carbon (C) sequestration potential. This study presents growing season (May-September 2022) eddy covariance flux measurements of CO2 and CH4 at a prairie pothole wetland near High River, Alberta with extensive bulrush (Schoenoplectus acutus) vegetation. The study was conducted during a time-period that was warmer and had precipitation inputs that were altered from the long-term average pattern. Despite the warmer and relatively dry weather in 2022, the wetland was still an important sink for atmospheric CO2 during the study period with a net uptake of 49 g C m−2 resulting from 623 g C m−2 of photosynthesis and 575 g C m−2 of respiration. Methane flux expressed in CO2-equivalents (6 g C m-2 season-1) offset only ~12% of carbon sequestration based on CO2 only. This suggests that the valuable ecosystem service of C sequestration can still occur in a prairie pothole wetland even in warm and dry weather conditions.","abstract_has_math":false,"creators":["Fernando, Weerahannedige Oshini Kaushalya","University of Lethbridge. 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This study presents growing season (May-September 2022) eddy covariance flux measurements of CO2 and CH4 at a prairie pothole wetland near High River, Alberta with extensive bulrush (Schoenoplectus acutus) vegetation. The study was conducted during a time-period that was warmer and had precipitation inputs that were altered from the long-term average pattern. Despite the warmer and relatively dry weather in 2022, the wetland was still an important sink for atmospheric CO2 during the study period with a net uptake of 49 g C m−2 resulting from 623 g C m−2 of photosynthesis and 575 g C m−2 of respiration. Methane flux expressed in CO2-equivalents (6 g C m-2 season-1) offset only ~12% of carbon sequestration based on CO2 only. This suggests that the valuable ecosystem service of C sequestration can still occur in a prairie pothole wetland even in warm and dry weather conditions."]},{"key":"dc:description.other","label":"Dc Description Other","values":["Prairie pothole wetlands have been shown to be strong sinks for carbon dioxide (CO2); however, it is likely that these ecosystems are also strong emitters of methane (CH4), reducing their overall carbon (C) sequestration potential. This study presents growing season (May-September 2022) eddy covariance flux measurements of CO2 and CH4 at a prairie pothole wetland near High River, Alberta with extensive bulrush (Schoenoplectus acutus) vegetation. The study was conducted during a time-period that was warmer and had precipitation inputs that were altered from the long-term average pattern. Despite the warmer and relatively dry weather in 2022, the wetland was still an important sink for atmospheric CO2 during the study period with a net uptake of 49 g C m−2 resulting from 623 g C m−2 of photosynthesis and 575 g C m−2 of respiration. Methane flux expressed in CO2-equivalents (6 g C m-2 season-1) offset only ~12% of carbon sequestration based on CO2 only. This suggests that the valuable ecosystem service of C sequestration can still occur in a prairie pothole wetland even in warm and dry weather conditions."]},{"key":"dc:title","label":"Title","values":["Environmental and biological controls on carbon dioxide and methane exchange in a restored freshwater mineral-soil wetland at Frank Lake, Alberta"]}]}],"canonical_facts":{"dc:contributor.supervisor":["Flanagan, Larry B."],"dc:creator":["Fernando, Weerahannedige Oshini Kaushalya","University of Lethbridge. 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Despite the warmer and relatively dry weather in 2022, the wetland was still an important sink for atmospheric CO2 during the study period with a net uptake of 49 g C m−2 resulting from 623 g C m−2 of photosynthesis and 575 g C m−2 of respiration. Methane flux expressed in CO2-equivalents (6 g C m-2 season-1) offset only ~12% of carbon sequestration based on CO2 only. This suggests that the valuable ecosystem service of C sequestration can still occur in a prairie pothole wetland even in warm and dry weather conditions."],"dc:description.other":["Prairie pothole wetlands have been shown to be strong sinks for carbon dioxide (CO2); however, it is likely that these ecosystems are also strong emitters of methane (CH4), reducing their overall carbon (C) sequestration potential. This study presents growing season (May-September 2022) eddy covariance flux measurements of CO2 and CH4 at a prairie pothole wetland near High River, Alberta with extensive bulrush (Schoenoplectus acutus) vegetation. The study was conducted during a time-period that was warmer and had precipitation inputs that were altered from the long-term average pattern. Despite the warmer and relatively dry weather in 2022, the wetland was still an important sink for atmospheric CO2 during the study period with a net uptake of 49 g C m−2 resulting from 623 g C m−2 of photosynthesis and 575 g C m−2 of respiration. Methane flux expressed in CO2-equivalents (6 g C m-2 season-1) offset only ~12% of carbon sequestration based on CO2 only. This suggests that the valuable ecosystem service of C sequestration can still occur in a prairie pothole wetland even in warm and dry weather conditions."],"dc:identifier":["hdl:10133/6682"],"dc:identifier.uri":["https://hdl.handle.net/10133/6682"],"dc:language.iso":["en"],"dc:publisher":["Lethbridge, Alta. : University of Lethbridge, Dept. of Biological Sciences"],"dc:publisher.department":["Department of Biological Sciences"],"dc:subject":["wetlands","ecosystem services","greenhouse gases","nature-based solutions","carbon dioxide","eddy covariance","methane"],"dc:title":["Environmental and biological controls on carbon dioxide and methane exchange in a restored freshwater mineral-soil wetland at Frank Lake, Alberta"],"dc:type":["Thesis"]},"updated_at":"2026-08-21T16:45:55Z"}