Holocene development and permafrost history in sub-arctic peatlands in Tavvavuoma, northern Sweden
Under changing climatic conditions permafrost peatlands can play an important role in the global carbon budget through permafrost carbon feedbacks and shifts in carbon assimilation. To better predict future dynamics in these ecosystems an increased understanding of their Holocene carbon and permafro...
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Stockholms universitet, Institutionen för naturgeografi
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ftstockholmuniv:oai:DiVA.org:su-156059 2023-05-15T15:08:46+02:00 Holocene development and permafrost history in sub-arctic peatlands in Tavvavuoma, northern Sweden Sannel, Anna Britta Kristina Hempel, Liljen Kessler, Alexander Preskienis, Vilmantas 2018 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-156059 https://doi.org/10.1111/bor.12276 eng eng Stockholms universitet, Institutionen för naturgeografi Institut Nationalde la Recherche Scientifique, Canada Boreas, 0300-9483, 2018, 47:2, s. 454-468 http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-156059 doi:10.1111/bor.12276 ISI:000428369500006 info:eu-repo/semantics/openAccess Earth and Related Environmental Sciences Geovetenskap och miljövetenskap Article in journal info:eu-repo/semantics/article text 2018 ftstockholmuniv https://doi.org/10.1111/bor.12276 2023-02-23T21:43:20Z Under changing climatic conditions permafrost peatlands can play an important role in the global carbon budget through permafrost carbon feedbacks and shifts in carbon assimilation. To better predict future dynamics in these ecosystems an increased understanding of their Holocene carbon and permafrost history is needed. In Tavvavuoma, northern Sweden, we have performed detailed analyses of vegetation succession and geochemical properties at six permafrost peatland sites. Peatland initiation took place around 10000 to 9600cal. a BP, soon after retreat of the Fennoscandian Ice Sheet, and the peatlands have remained permafrost-free fens throughout most of the Holocene. At the four sites that showed a continuous accumulation record during the late Holocene radiocarbon dating of the shift from wet fen to dry bog vegetation, characteristic of the present permafrost peatland surface, suggests that permafrost developed at around 600-100cal. a BP. At the other two sites peat accumulation was halted during the late Holocene, possibly due to abrasion, making it more difficult to imply the timing of permafrost aggradation. However also at these sites there are no indications of permafrost inception prior to the Little Ice Age. The mean long-term Holocene carbon accumulation rate at all six sites was 12.3 +/- 2.4 gC m(-2) a(-1) (+/- SD), and the mean soil organic carbon storage was 114 +/- 27kg m(-2). Article in Journal/Newspaper Arctic Fennoscandian Ice Ice Sheet Northern Sweden permafrost Stockholm University: Publications (DiVA) Arctic Tavvavuoma ENVELOPE(20.860,20.860,68.520,68.520) Boreas 47 2 454 468 |
institution |
Open Polar |
collection |
Stockholm University: Publications (DiVA) |
op_collection_id |
ftstockholmuniv |
language |
English |
topic |
Earth and Related Environmental Sciences Geovetenskap och miljövetenskap |
spellingShingle |
Earth and Related Environmental Sciences Geovetenskap och miljövetenskap Sannel, Anna Britta Kristina Hempel, Liljen Kessler, Alexander Preskienis, Vilmantas Holocene development and permafrost history in sub-arctic peatlands in Tavvavuoma, northern Sweden |
topic_facet |
Earth and Related Environmental Sciences Geovetenskap och miljövetenskap |
description |
Under changing climatic conditions permafrost peatlands can play an important role in the global carbon budget through permafrost carbon feedbacks and shifts in carbon assimilation. To better predict future dynamics in these ecosystems an increased understanding of their Holocene carbon and permafrost history is needed. In Tavvavuoma, northern Sweden, we have performed detailed analyses of vegetation succession and geochemical properties at six permafrost peatland sites. Peatland initiation took place around 10000 to 9600cal. a BP, soon after retreat of the Fennoscandian Ice Sheet, and the peatlands have remained permafrost-free fens throughout most of the Holocene. At the four sites that showed a continuous accumulation record during the late Holocene radiocarbon dating of the shift from wet fen to dry bog vegetation, characteristic of the present permafrost peatland surface, suggests that permafrost developed at around 600-100cal. a BP. At the other two sites peat accumulation was halted during the late Holocene, possibly due to abrasion, making it more difficult to imply the timing of permafrost aggradation. However also at these sites there are no indications of permafrost inception prior to the Little Ice Age. The mean long-term Holocene carbon accumulation rate at all six sites was 12.3 +/- 2.4 gC m(-2) a(-1) (+/- SD), and the mean soil organic carbon storage was 114 +/- 27kg m(-2). |
format |
Article in Journal/Newspaper |
author |
Sannel, Anna Britta Kristina Hempel, Liljen Kessler, Alexander Preskienis, Vilmantas |
author_facet |
Sannel, Anna Britta Kristina Hempel, Liljen Kessler, Alexander Preskienis, Vilmantas |
author_sort |
Sannel, Anna Britta Kristina |
title |
Holocene development and permafrost history in sub-arctic peatlands in Tavvavuoma, northern Sweden |
title_short |
Holocene development and permafrost history in sub-arctic peatlands in Tavvavuoma, northern Sweden |
title_full |
Holocene development and permafrost history in sub-arctic peatlands in Tavvavuoma, northern Sweden |
title_fullStr |
Holocene development and permafrost history in sub-arctic peatlands in Tavvavuoma, northern Sweden |
title_full_unstemmed |
Holocene development and permafrost history in sub-arctic peatlands in Tavvavuoma, northern Sweden |
title_sort |
holocene development and permafrost history in sub-arctic peatlands in tavvavuoma, northern sweden |
publisher |
Stockholms universitet, Institutionen för naturgeografi |
publishDate |
2018 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-156059 https://doi.org/10.1111/bor.12276 |
long_lat |
ENVELOPE(20.860,20.860,68.520,68.520) |
geographic |
Arctic Tavvavuoma |
geographic_facet |
Arctic Tavvavuoma |
genre |
Arctic Fennoscandian Ice Ice Sheet Northern Sweden permafrost |
genre_facet |
Arctic Fennoscandian Ice Ice Sheet Northern Sweden permafrost |
op_relation |
Boreas, 0300-9483, 2018, 47:2, s. 454-468 http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-156059 doi:10.1111/bor.12276 ISI:000428369500006 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/bor.12276 |
container_title |
Boreas |
container_volume |
47 |
container_issue |
2 |
container_start_page |
454 |
op_container_end_page |
468 |
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1766340070742163456 |