Deeper burning in a boreal fen peatland 1‐year post‐wildfire accelerates recovery trajectory of carbon dioxide uptake
Abstract Peatlands contain a globally significant store (30%) of soil carbon (C). Within the Canadian Western Boreal Plains, where peatlands are a dominant feature, the climate is becoming warmer and drier, coupled with an increase in forest fire incidence. The response of peatlands to forest fire i...
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crwiley:10.1002/eco.2277 2024-06-02T08:06:48+00:00 Deeper burning in a boreal fen peatland 1‐year post‐wildfire accelerates recovery trajectory of carbon dioxide uptake Morison, Matthew van Beest, Christine Macrae, Merrin Nwaishi, Felix Petrone, Richard Natural Sciences and Engineering Research Council of Canada 2021 http://dx.doi.org/10.1002/eco.2277 https://onlinelibrary.wiley.com/doi/pdf/10.1002/eco.2277 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/eco.2277 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecohydrology volume 14, issue 3 ISSN 1936-0584 1936-0592 journal-article 2021 crwiley https://doi.org/10.1002/eco.2277 2024-05-06T07:03:36Z Abstract Peatlands contain a globally significant store (30%) of soil carbon (C). Within the Canadian Western Boreal Plains, where peatlands are a dominant feature, the climate is becoming warmer and drier, coupled with an increase in forest fire incidence. The response of peatlands to forest fire is likely to be a key determinant in the future of C storage of Boreal peatlands. This study examined the impacts of fire on key environmental controls on CO 2 fluxes at the plot‐scale (using static chambers) between burned and unburned understory vegetation throughout the growing season of 2017 in a treed fen impacted by the Horse River wildfire (2016) in Fort McMurray, Alberta, Canada. Both gross ecosystem productivity (GEP) and total respiration (R tot ) were less at burned plots compared with unburned. Temporal patterns varied between the plots, where both component of CO 2 fluxes at the unburned plots were largest in June, whereas at the burned plots, CO 2 fluxes peaked in the late growing season. GEP and net ecosystem exchange (NEE) showed a positive relationship with depth of burn, with the deepest burned areas showing significantly greater CO 2 uptake , coinciding with both increased bioavailable phosphorus and greater moss recolonization. At the unburned plots, soil temperature was a dominant control on CO 2 fluxes. This work demonstrates the importance of the depth of burn to post‐fire carbon fluxes and how a knowledge of burn severity and depth can inform understanding of the recovery trajectory of northern peatlands following fire disturbance. Article in Journal/Newspaper Fort McMurray Wiley Online Library Canada Fort McMurray Horse River ENVELOPE(-111.385,-111.385,56.717,56.717) Ecohydrology 14 3 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Peatlands contain a globally significant store (30%) of soil carbon (C). Within the Canadian Western Boreal Plains, where peatlands are a dominant feature, the climate is becoming warmer and drier, coupled with an increase in forest fire incidence. The response of peatlands to forest fire is likely to be a key determinant in the future of C storage of Boreal peatlands. This study examined the impacts of fire on key environmental controls on CO 2 fluxes at the plot‐scale (using static chambers) between burned and unburned understory vegetation throughout the growing season of 2017 in a treed fen impacted by the Horse River wildfire (2016) in Fort McMurray, Alberta, Canada. Both gross ecosystem productivity (GEP) and total respiration (R tot ) were less at burned plots compared with unburned. Temporal patterns varied between the plots, where both component of CO 2 fluxes at the unburned plots were largest in June, whereas at the burned plots, CO 2 fluxes peaked in the late growing season. GEP and net ecosystem exchange (NEE) showed a positive relationship with depth of burn, with the deepest burned areas showing significantly greater CO 2 uptake , coinciding with both increased bioavailable phosphorus and greater moss recolonization. At the unburned plots, soil temperature was a dominant control on CO 2 fluxes. This work demonstrates the importance of the depth of burn to post‐fire carbon fluxes and how a knowledge of burn severity and depth can inform understanding of the recovery trajectory of northern peatlands following fire disturbance. |
author2 |
Natural Sciences and Engineering Research Council of Canada |
format |
Article in Journal/Newspaper |
author |
Morison, Matthew van Beest, Christine Macrae, Merrin Nwaishi, Felix Petrone, Richard |
spellingShingle |
Morison, Matthew van Beest, Christine Macrae, Merrin Nwaishi, Felix Petrone, Richard Deeper burning in a boreal fen peatland 1‐year post‐wildfire accelerates recovery trajectory of carbon dioxide uptake |
author_facet |
Morison, Matthew van Beest, Christine Macrae, Merrin Nwaishi, Felix Petrone, Richard |
author_sort |
Morison, Matthew |
title |
Deeper burning in a boreal fen peatland 1‐year post‐wildfire accelerates recovery trajectory of carbon dioxide uptake |
title_short |
Deeper burning in a boreal fen peatland 1‐year post‐wildfire accelerates recovery trajectory of carbon dioxide uptake |
title_full |
Deeper burning in a boreal fen peatland 1‐year post‐wildfire accelerates recovery trajectory of carbon dioxide uptake |
title_fullStr |
Deeper burning in a boreal fen peatland 1‐year post‐wildfire accelerates recovery trajectory of carbon dioxide uptake |
title_full_unstemmed |
Deeper burning in a boreal fen peatland 1‐year post‐wildfire accelerates recovery trajectory of carbon dioxide uptake |
title_sort |
deeper burning in a boreal fen peatland 1‐year post‐wildfire accelerates recovery trajectory of carbon dioxide uptake |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1002/eco.2277 https://onlinelibrary.wiley.com/doi/pdf/10.1002/eco.2277 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/eco.2277 |
long_lat |
ENVELOPE(-111.385,-111.385,56.717,56.717) |
geographic |
Canada Fort McMurray Horse River |
geographic_facet |
Canada Fort McMurray Horse River |
genre |
Fort McMurray |
genre_facet |
Fort McMurray |
op_source |
Ecohydrology volume 14, issue 3 ISSN 1936-0584 1936-0592 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/eco.2277 |
container_title |
Ecohydrology |
container_volume |
14 |
container_issue |
3 |
_version_ |
1800751784984051712 |