{"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. Faculty of Arts and Science"],"institution":null,"degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2023,"date_issued":"2023","date_published":"2023","updated_at":"2026-07-27T20:02:05Z","subjects":["wetlands","ecosystem services","greenhouse gases","nature-based solutions","carbon dioxide","eddy covariance","methane"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["hdl:10133/6682"],"render_values":[{"text":"hdl:10133/6682","href":null,"code":true}]}]},"links":{"outbound_url":null,"outbound_label":null,"outbound_source":null},"metadata_groups":[{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.issued","label":"Date","values":["2023"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["wetlands","ecosystem services","greenhouse gases","nature-based solutions","carbon dioxide","eddy covariance","methane"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["hdl:10133/6682"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"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:date.issued":["2023"],"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: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":"2026-07-27T20:02:05Z"}