Holocene development of subarctic permafrost peatlands in Finnmark, northern Norway
Accepted manuscript version. Published version available at https://doi.org/10.1177/0959683618798126 . Subarctic permafrost peatlands are important soil organic carbon pools, and improved knowledge about peat properties and peatland sensitivity to past climate change is essential when predicting fut...
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://hdl.handle.net/10037/14449 https://doi.org/10.1177/0959683618798126 |
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ftunivtroemsoe:oai:munin.uit.no:10037/14449 2023-05-15T16:13:39+02:00 Holocene development of subarctic permafrost peatlands in Finnmark, northern Norway Kjellman, Sofia E. Axelsson, Pia E. Etzelmüller, Bernd Westermann, Sebastian Sannel, A. Britta K. 2018-12-01 https://hdl.handle.net/10037/14449 https://doi.org/10.1177/0959683618798126 eng eng SAGE Publications The Holocene info:eu-repo/grantAgreement/RCN/KLIMAFORSK/244903/Norway/Constraining uncertainties in the permafrost-carbon feedback// info:eu-repo/grantAgreement/RCN/KLIMAFORSK/255331/Norway/Permafrost landscapes in transformation - from local-scale processes to the global model NorESM// https://journals.sagepub.com/doi/10.1177/0959683618798126 Kjellman, S.E., Axelsson, P.E., Etzelmüller, B., Westermann, S. & Sannel, B.K. (2018). Holocene development of subarctic permafrost peatlands in Finnmark, northern Norway. The Holocene , 28(12), 1855-1869. https://doi.org/10.1177/0959683618798126 FRIDAID 1644824 doi:10.1177/0959683618798126 0959-6836 1477-0911 https://hdl.handle.net/10037/14449 openAccess VDP::Matematikk og naturvitenskap: 400::Geofag: 450 VDP::Mathematics and natural scienses: 400::Geosciences: 450 carbon accumulation Holocene peatland development peat plateau permafrost dynamics plant macrofossils subarctic Norway Journal article Tidsskriftartikkel Peer reviewed 2018 ftunivtroemsoe https://doi.org/10.1177/0959683618798126 2021-06-25T17:56:19Z Accepted manuscript version. Published version available at https://doi.org/10.1177/0959683618798126 . Subarctic permafrost peatlands are important soil organic carbon pools, and improved knowledge about peat properties and peatland sensitivity to past climate change is essential when predicting future response to a warmer climate and associated feedback mechanisms. In this study, Holocene peatland development and permafrost dynamics of four subarctic peat plateaus in Finnmark, northern Norway have been investigated through detailed analyses of plant macrofossils and geochemical properties. Peatland inception occurred around 9800 cal. yr BP and 9200 cal. yr BP at the two continental sites Suossjavri and Iskoras. Younger basal peat ages were found at the two coastal locations Lakselv and Karlebotn, at least partly caused by the time lag between deglaciation and emergence of land by isostatic uplift. Here, peatland development started around 6150 cal. yr BP and 5150 cal. yr BP, respectively. All four peatlands developed as wet fens throughout most of the Holocene. Permafrost aggradation, causing frost heave and a shift in the vegetation assemblage from wet fen to dry bog species, probably did not occur until during the last millennium, ca. 950 cal. yr BP in Karlebotn and ca. 800 cal. yr BP in Iskoras, and before ca. 150 cal. yr BP in Lakselv and ca. 100 cal. yr BP in Suossjavri. In Karlebotn, there are indications of a possible earlier permafrost phase around 2200 cal. yr BP due to climatic cooling at the late Subboreal to early Subatlantic transition. The mean long-term Holocene carbon accumulation rate at all four sites was 12.3 +/- 4.1 gC m-2 yr-1 (+/- SD) and the mean soil organic carbon storage was 97 +/- 46 kgC m-2. Article in Journal/Newspaper Finnmark Karlebotn Lakselv Northern Norway Peat Peat plateau permafrost Subarctic Finnmark University of Tromsø: Munin Open Research Archive Karlebotn ENVELOPE(28.571,28.571,70.119,70.119) Norway The Holocene 28 12 1855 1869 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Matematikk og naturvitenskap: 400::Geofag: 450 VDP::Mathematics and natural scienses: 400::Geosciences: 450 carbon accumulation Holocene peatland development peat plateau permafrost dynamics plant macrofossils subarctic Norway |
spellingShingle |
VDP::Matematikk og naturvitenskap: 400::Geofag: 450 VDP::Mathematics and natural scienses: 400::Geosciences: 450 carbon accumulation Holocene peatland development peat plateau permafrost dynamics plant macrofossils subarctic Norway Kjellman, Sofia E. Axelsson, Pia E. Etzelmüller, Bernd Westermann, Sebastian Sannel, A. Britta K. Holocene development of subarctic permafrost peatlands in Finnmark, northern Norway |
topic_facet |
VDP::Matematikk og naturvitenskap: 400::Geofag: 450 VDP::Mathematics and natural scienses: 400::Geosciences: 450 carbon accumulation Holocene peatland development peat plateau permafrost dynamics plant macrofossils subarctic Norway |
description |
Accepted manuscript version. Published version available at https://doi.org/10.1177/0959683618798126 . Subarctic permafrost peatlands are important soil organic carbon pools, and improved knowledge about peat properties and peatland sensitivity to past climate change is essential when predicting future response to a warmer climate and associated feedback mechanisms. In this study, Holocene peatland development and permafrost dynamics of four subarctic peat plateaus in Finnmark, northern Norway have been investigated through detailed analyses of plant macrofossils and geochemical properties. Peatland inception occurred around 9800 cal. yr BP and 9200 cal. yr BP at the two continental sites Suossjavri and Iskoras. Younger basal peat ages were found at the two coastal locations Lakselv and Karlebotn, at least partly caused by the time lag between deglaciation and emergence of land by isostatic uplift. Here, peatland development started around 6150 cal. yr BP and 5150 cal. yr BP, respectively. All four peatlands developed as wet fens throughout most of the Holocene. Permafrost aggradation, causing frost heave and a shift in the vegetation assemblage from wet fen to dry bog species, probably did not occur until during the last millennium, ca. 950 cal. yr BP in Karlebotn and ca. 800 cal. yr BP in Iskoras, and before ca. 150 cal. yr BP in Lakselv and ca. 100 cal. yr BP in Suossjavri. In Karlebotn, there are indications of a possible earlier permafrost phase around 2200 cal. yr BP due to climatic cooling at the late Subboreal to early Subatlantic transition. The mean long-term Holocene carbon accumulation rate at all four sites was 12.3 +/- 4.1 gC m-2 yr-1 (+/- SD) and the mean soil organic carbon storage was 97 +/- 46 kgC m-2. |
format |
Article in Journal/Newspaper |
author |
Kjellman, Sofia E. Axelsson, Pia E. Etzelmüller, Bernd Westermann, Sebastian Sannel, A. Britta K. |
author_facet |
Kjellman, Sofia E. Axelsson, Pia E. Etzelmüller, Bernd Westermann, Sebastian Sannel, A. Britta K. |
author_sort |
Kjellman, Sofia E. |
title |
Holocene development of subarctic permafrost peatlands in Finnmark, northern Norway |
title_short |
Holocene development of subarctic permafrost peatlands in Finnmark, northern Norway |
title_full |
Holocene development of subarctic permafrost peatlands in Finnmark, northern Norway |
title_fullStr |
Holocene development of subarctic permafrost peatlands in Finnmark, northern Norway |
title_full_unstemmed |
Holocene development of subarctic permafrost peatlands in Finnmark, northern Norway |
title_sort |
holocene development of subarctic permafrost peatlands in finnmark, northern norway |
publisher |
SAGE Publications |
publishDate |
2018 |
url |
https://hdl.handle.net/10037/14449 https://doi.org/10.1177/0959683618798126 |
long_lat |
ENVELOPE(28.571,28.571,70.119,70.119) |
geographic |
Karlebotn Norway |
geographic_facet |
Karlebotn Norway |
genre |
Finnmark Karlebotn Lakselv Northern Norway Peat Peat plateau permafrost Subarctic Finnmark |
genre_facet |
Finnmark Karlebotn Lakselv Northern Norway Peat Peat plateau permafrost Subarctic Finnmark |
op_relation |
The Holocene info:eu-repo/grantAgreement/RCN/KLIMAFORSK/244903/Norway/Constraining uncertainties in the permafrost-carbon feedback// info:eu-repo/grantAgreement/RCN/KLIMAFORSK/255331/Norway/Permafrost landscapes in transformation - from local-scale processes to the global model NorESM// https://journals.sagepub.com/doi/10.1177/0959683618798126 Kjellman, S.E., Axelsson, P.E., Etzelmüller, B., Westermann, S. & Sannel, B.K. (2018). Holocene development of subarctic permafrost peatlands in Finnmark, northern Norway. The Holocene , 28(12), 1855-1869. https://doi.org/10.1177/0959683618798126 FRIDAID 1644824 doi:10.1177/0959683618798126 0959-6836 1477-0911 https://hdl.handle.net/10037/14449 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1177/0959683618798126 |
container_title |
The Holocene |
container_volume |
28 |
container_issue |
12 |
container_start_page |
1855 |
op_container_end_page |
1869 |
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1765999453131505664 |