Tundra cryogenic land surface processes and CO2–C balance in sub-Arctic alpine environment withstand winter and spring warming
Cryogenic land surface processes (CLSPs), such as cryoturbation, are currently active in landscapes covering 25% of our planet where they dictate key functions, such as carbon (C) cycling, and maintain patterned landscape features. While CLSPs are expected to diminish in the near future due to milde...
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Online Access: | https://doi.org/10.1088/2752-5295/acc08b https://doaj.org/article/6d25ae0621934042b8e5eb3952d88642 |
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ftdoajarticles:oai:doaj.org/article:6d25ae0621934042b8e5eb3952d88642 2023-06-11T04:09:14+02:00 Tundra cryogenic land surface processes and CO2–C balance in sub-Arctic alpine environment withstand winter and spring warming Maria Väisänen Jonatan Klaminder Henni Ylänne Laurenz Teuber Ellen Dorrepaal Eveline J Krab 2023-01-01T00:00:00Z https://doi.org/10.1088/2752-5295/acc08b https://doaj.org/article/6d25ae0621934042b8e5eb3952d88642 EN eng IOP Publishing https://doi.org/10.1088/2752-5295/acc08b https://doaj.org/toc/2752-5295 doi:10.1088/2752-5295/acc08b 2752-5295 https://doaj.org/article/6d25ae0621934042b8e5eb3952d88642 Environmental Research: Climate, Vol 2, Iss 2, p 021001 (2023) non-sorted circle differential heave greenhouse gas snow fence greenness light-response Meteorology. Climatology QC851-999 Environmental sciences GE1-350 article 2023 ftdoajarticles https://doi.org/10.1088/2752-5295/acc08b 2023-05-07T00:34:43Z Cryogenic land surface processes (CLSPs), such as cryoturbation, are currently active in landscapes covering 25% of our planet where they dictate key functions, such as carbon (C) cycling, and maintain patterned landscape features. While CLSPs are expected to diminish in the near future due to milder winters especially in the southern parts of the Arctic, the shifts in C cycling in these landscapes may be more complex, since climate change can affect C cycling directly but also indirectly via CLSPs. Here, we study the effects of changing winter and spring climate on CLSPs and C cycling in non-sorted circles consisting of barren frost boils and their vegetated rims. We do this by measuring cryoturbation and ecosystem CO _2 fluxes repeatedly in alpine subarctic tundra where temperatures during naturally snow covered period have been experimentally increased with snow-trapping fences and temperatures during winter and spring period after snowmelt have been increased with insulating fleeces. Opposite to our hypothesis, warming treatments did not decrease cryoturbation. However, winter warming via deeper snow increased ecosystem C sink during summer by decreasing ecosystem CO _2 release in the frost boils and by counterbalancing the negative effects of cryoturbation on plant CO _2 uptake in the vegetated rims. Our results suggest that short-term changes in winter and spring climate may not alter cryoturbation and jeopardize the tundra C sink. Article in Journal/Newspaper Arctic Climate change Subarctic Tundra Directory of Open Access Journals: DOAJ Articles Arctic Environmental Research: Climate 2 2 021001 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
non-sorted circle differential heave greenhouse gas snow fence greenness light-response Meteorology. Climatology QC851-999 Environmental sciences GE1-350 |
spellingShingle |
non-sorted circle differential heave greenhouse gas snow fence greenness light-response Meteorology. Climatology QC851-999 Environmental sciences GE1-350 Maria Väisänen Jonatan Klaminder Henni Ylänne Laurenz Teuber Ellen Dorrepaal Eveline J Krab Tundra cryogenic land surface processes and CO2–C balance in sub-Arctic alpine environment withstand winter and spring warming |
topic_facet |
non-sorted circle differential heave greenhouse gas snow fence greenness light-response Meteorology. Climatology QC851-999 Environmental sciences GE1-350 |
description |
Cryogenic land surface processes (CLSPs), such as cryoturbation, are currently active in landscapes covering 25% of our planet where they dictate key functions, such as carbon (C) cycling, and maintain patterned landscape features. While CLSPs are expected to diminish in the near future due to milder winters especially in the southern parts of the Arctic, the shifts in C cycling in these landscapes may be more complex, since climate change can affect C cycling directly but also indirectly via CLSPs. Here, we study the effects of changing winter and spring climate on CLSPs and C cycling in non-sorted circles consisting of barren frost boils and their vegetated rims. We do this by measuring cryoturbation and ecosystem CO _2 fluxes repeatedly in alpine subarctic tundra where temperatures during naturally snow covered period have been experimentally increased with snow-trapping fences and temperatures during winter and spring period after snowmelt have been increased with insulating fleeces. Opposite to our hypothesis, warming treatments did not decrease cryoturbation. However, winter warming via deeper snow increased ecosystem C sink during summer by decreasing ecosystem CO _2 release in the frost boils and by counterbalancing the negative effects of cryoturbation on plant CO _2 uptake in the vegetated rims. Our results suggest that short-term changes in winter and spring climate may not alter cryoturbation and jeopardize the tundra C sink. |
format |
Article in Journal/Newspaper |
author |
Maria Väisänen Jonatan Klaminder Henni Ylänne Laurenz Teuber Ellen Dorrepaal Eveline J Krab |
author_facet |
Maria Väisänen Jonatan Klaminder Henni Ylänne Laurenz Teuber Ellen Dorrepaal Eveline J Krab |
author_sort |
Maria Väisänen |
title |
Tundra cryogenic land surface processes and CO2–C balance in sub-Arctic alpine environment withstand winter and spring warming |
title_short |
Tundra cryogenic land surface processes and CO2–C balance in sub-Arctic alpine environment withstand winter and spring warming |
title_full |
Tundra cryogenic land surface processes and CO2–C balance in sub-Arctic alpine environment withstand winter and spring warming |
title_fullStr |
Tundra cryogenic land surface processes and CO2–C balance in sub-Arctic alpine environment withstand winter and spring warming |
title_full_unstemmed |
Tundra cryogenic land surface processes and CO2–C balance in sub-Arctic alpine environment withstand winter and spring warming |
title_sort |
tundra cryogenic land surface processes and co2–c balance in sub-arctic alpine environment withstand winter and spring warming |
publisher |
IOP Publishing |
publishDate |
2023 |
url |
https://doi.org/10.1088/2752-5295/acc08b https://doaj.org/article/6d25ae0621934042b8e5eb3952d88642 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Subarctic Tundra |
genre_facet |
Arctic Climate change Subarctic Tundra |
op_source |
Environmental Research: Climate, Vol 2, Iss 2, p 021001 (2023) |
op_relation |
https://doi.org/10.1088/2752-5295/acc08b https://doaj.org/toc/2752-5295 doi:10.1088/2752-5295/acc08b 2752-5295 https://doaj.org/article/6d25ae0621934042b8e5eb3952d88642 |
op_doi |
https://doi.org/10.1088/2752-5295/acc08b |
container_title |
Environmental Research: Climate |
container_volume |
2 |
container_issue |
2 |
container_start_page |
021001 |
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1768383006536368128 |