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...
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ftdoajarticles:oai:doaj.org/article:55629c1062784dbf9559080209f796be 2024-02-04T10:03:46+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 Kajar Köster Heidi Aaltonen Egle Köster Frank Berninger Jukka Pumpanen 2024-01-01T00:00:00Z https://doi.org/10.3389/fevo.2023.1331018 https://doaj.org/article/55629c1062784dbf9559080209f796be EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fevo.2023.1331018/full https://doaj.org/toc/2296-701X 2296-701X doi:10.3389/fevo.2023.1331018 https://doaj.org/article/55629c1062784dbf9559080209f796be Frontiers in Ecology and Evolution, Vol 11 (2024) soil carbon turnover forest fire boreal forest permafrost soils non-permafrost soils Evolution QH359-425 Ecology QH540-549.5 article 2024 ftdoajarticles https://doi.org/10.3389/fevo.2023.1331018 2024-01-07T01:43:01Z 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 (CO2) 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 CO2 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 Directory of Open Access Journals: DOAJ Articles Canada Frontiers in Ecology and Evolution 11 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
soil carbon turnover forest fire boreal forest permafrost soils non-permafrost soils Evolution QH359-425 Ecology QH540-549.5 |
spellingShingle |
soil carbon turnover forest fire boreal forest permafrost soils non-permafrost soils Evolution QH359-425 Ecology QH540-549.5 Kajar Köster Heidi Aaltonen Egle Köster Frank Berninger Jukka Pumpanen 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 |
soil carbon turnover forest fire boreal forest permafrost soils non-permafrost soils Evolution QH359-425 Ecology QH540-549.5 |
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 (CO2) 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 CO2 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. |
format |
Article in Journal/Newspaper |
author |
Kajar Köster Heidi Aaltonen Egle Köster Frank Berninger Jukka Pumpanen |
author_facet |
Kajar Köster Heidi Aaltonen Egle Köster Frank Berninger Jukka Pumpanen |
author_sort |
Kajar Köster |
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 S.A. |
publishDate |
2024 |
url |
https://doi.org/10.3389/fevo.2023.1331018 https://doaj.org/article/55629c1062784dbf9559080209f796be |
geographic |
Canada |
geographic_facet |
Canada |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Frontiers in Ecology and Evolution, Vol 11 (2024) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fevo.2023.1331018/full https://doaj.org/toc/2296-701X 2296-701X doi:10.3389/fevo.2023.1331018 https://doaj.org/article/55629c1062784dbf9559080209f796be |
op_doi |
https://doi.org/10.3389/fevo.2023.1331018 |
container_title |
Frontiers in Ecology and Evolution |
container_volume |
11 |
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1789971435547000832 |