Post-fire soil carbon emission rates along boreal forest fire chronosequences in northwest Canada show significantly higher emission potentials from permafrost soils compared to non-permafrost soils
Boreal forests are one of the most important biomes storing carbon (C). Wildfires burn yearly on average more than 1% of the boreal forest, and it is expected that the fire return intervals will shorten due to climate change. Fire is one of the most influential factors affecting soil organic matter...
Published in: | Frontiers in Ecology and Evolution |
---|---|
Main Authors: | , , , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Frontiers Media SA
2024
|
Subjects: | |
Online Access: | http://dx.doi.org/10.3389/fevo.2023.1331018 https://www.frontiersin.org/articles/10.3389/fevo.2023.1331018/full |
id |
crfrontiers:10.3389/fevo.2023.1331018 |
---|---|
record_format |
openpolar |
spelling |
crfrontiers:10.3389/fevo.2023.1331018 2024-02-11T10:07:46+01:00 Post-fire soil carbon emission rates along boreal forest fire chronosequences in northwest Canada show significantly higher emission potentials from permafrost soils compared to non-permafrost soils Köster, Kajar Aaltonen, Heidi Köster, Egle Berninger, Frank Pumpanen, Jukka Academy of Finland Horizon 2020 Framework Programme 2024 http://dx.doi.org/10.3389/fevo.2023.1331018 https://www.frontiersin.org/articles/10.3389/fevo.2023.1331018/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Ecology and Evolution volume 11 ISSN 2296-701X Ecology Ecology, Evolution, Behavior and Systematics journal-article 2024 crfrontiers https://doi.org/10.3389/fevo.2023.1331018 2024-01-26T10:08:34Z Boreal forests are one of the most important biomes storing carbon (C). Wildfires burn yearly on average more than 1% of the boreal forest, and it is expected that the fire return intervals will shorten due to climate change. Fire is one of the most influential factors affecting soil organic matter quantity and quality, soil C pools, and presumably also the time C resides in the soil (soil C turnover time in years). We compared the potential effects of forest fire through post-fire succession on soil carbon dioxide (CO 2 ) emission rates and soil C turnover time in two fire chronosequences, one with underlying permafrost soil and the other without permafrost. We found that fire had a significant effect on potential soil C turnover times, but surprisingly there was no significant difference in soil C turnover times between the permafrost and non-permafrost areas, although the soil CO 2 emissions rates in permafrost areas are approximately three times higher compared to non-permafrost areas. In recently burned areas the potential soil C turnover times were two times longer compared to control areas located in forests burned more than 100 years ago. The longest potential soil C turnover times were recorded in mineral soil layers (30 cm) of permafrost soils, and the shortest potential soil C turnover times were recorded in humus layers of non-permafrost areas. Article in Journal/Newspaper permafrost Frontiers (Publisher) Canada Frontiers in Ecology and Evolution 11 |
institution |
Open Polar |
collection |
Frontiers (Publisher) |
op_collection_id |
crfrontiers |
language |
unknown |
topic |
Ecology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Ecology Ecology, Evolution, Behavior and Systematics Köster, Kajar Aaltonen, Heidi Köster, Egle Berninger, Frank Pumpanen, Jukka Post-fire soil carbon emission rates along boreal forest fire chronosequences in northwest Canada show significantly higher emission potentials from permafrost soils compared to non-permafrost soils |
topic_facet |
Ecology Ecology, Evolution, Behavior and Systematics |
description |
Boreal forests are one of the most important biomes storing carbon (C). Wildfires burn yearly on average more than 1% of the boreal forest, and it is expected that the fire return intervals will shorten due to climate change. Fire is one of the most influential factors affecting soil organic matter quantity and quality, soil C pools, and presumably also the time C resides in the soil (soil C turnover time in years). We compared the potential effects of forest fire through post-fire succession on soil carbon dioxide (CO 2 ) emission rates and soil C turnover time in two fire chronosequences, one with underlying permafrost soil and the other without permafrost. We found that fire had a significant effect on potential soil C turnover times, but surprisingly there was no significant difference in soil C turnover times between the permafrost and non-permafrost areas, although the soil CO 2 emissions rates in permafrost areas are approximately three times higher compared to non-permafrost areas. In recently burned areas the potential soil C turnover times were two times longer compared to control areas located in forests burned more than 100 years ago. The longest potential soil C turnover times were recorded in mineral soil layers (30 cm) of permafrost soils, and the shortest potential soil C turnover times were recorded in humus layers of non-permafrost areas. |
author2 |
Academy of Finland Horizon 2020 Framework Programme |
format |
Article in Journal/Newspaper |
author |
Köster, Kajar Aaltonen, Heidi Köster, Egle Berninger, Frank Pumpanen, Jukka |
author_facet |
Köster, Kajar Aaltonen, Heidi Köster, Egle Berninger, Frank Pumpanen, Jukka |
author_sort |
Köster, Kajar |
title |
Post-fire soil carbon emission rates along boreal forest fire chronosequences in northwest Canada show significantly higher emission potentials from permafrost soils compared to non-permafrost soils |
title_short |
Post-fire soil carbon emission rates along boreal forest fire chronosequences in northwest Canada show significantly higher emission potentials from permafrost soils compared to non-permafrost soils |
title_full |
Post-fire soil carbon emission rates along boreal forest fire chronosequences in northwest Canada show significantly higher emission potentials from permafrost soils compared to non-permafrost soils |
title_fullStr |
Post-fire soil carbon emission rates along boreal forest fire chronosequences in northwest Canada show significantly higher emission potentials from permafrost soils compared to non-permafrost soils |
title_full_unstemmed |
Post-fire soil carbon emission rates along boreal forest fire chronosequences in northwest Canada show significantly higher emission potentials from permafrost soils compared to non-permafrost soils |
title_sort |
post-fire soil carbon emission rates along boreal forest fire chronosequences in northwest canada show significantly higher emission potentials from permafrost soils compared to non-permafrost soils |
publisher |
Frontiers Media SA |
publishDate |
2024 |
url |
http://dx.doi.org/10.3389/fevo.2023.1331018 https://www.frontiersin.org/articles/10.3389/fevo.2023.1331018/full |
geographic |
Canada |
geographic_facet |
Canada |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Frontiers in Ecology and Evolution volume 11 ISSN 2296-701X |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fevo.2023.1331018 |
container_title |
Frontiers in Ecology and Evolution |
container_volume |
11 |
_version_ |
1790606490286948352 |