Holocene development of subarctic permafrost peatlands in Finnmark, northern Norway
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 d...
Published in: | The Holocene |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Edward Arnold
2018
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Online Access: | http://hdl.handle.net/10852/69191 http://urn.nb.no/URN:NBN:no-72336 https://doi.org/10.1177/0959683618798126 |
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ftoslouniv:oai:www.duo.uio.no:10852/69191 2023-05-15T16:13:38+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. 2018-12-18T12:41:10Z http://hdl.handle.net/10852/69191 http://urn.nb.no/URN:NBN:no-72336 https://doi.org/10.1177/0959683618798126 EN eng Edward Arnold NFR/244903/E10 NFR/255331 VETENSKAPSRÅDET/214–2014-562 http://urn.nb.no/URN:NBN:no-72336 Kjellman, Sofia E. Axelsson, Pia E. Etzelmüller, Bernd Westermann, Sebastian Sannel, A. Britta K. . Holocene development of subarctic permafrost peatlands in Finnmark, northern Norway. The Holocene. 2018, 28(12), 1855-1869 http://hdl.handle.net/10852/69191 1644824 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=The Holocene&rft.volume=28&rft.spage=1855&rft.date=2018 The Holocene 28 12 1855 1869 http://dx.doi.org/10.1177/0959683618798126 URN:NBN:no-72336 Fulltext https://www.duo.uio.no/bitstream/handle/10852/69191/1/Kjellman%2Bet%2Bal.%2B2018_final%2Bdraft.pdf 0959-6836 VDP::Geofag: 450 Journal article Tidsskriftartikkel Peer reviewed AcceptedVersion 2018 ftoslouniv https://doi.org/10.1177/0959683618798126 2020-06-21T08:52:49Z 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 permafrost Subarctic Finnmark Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Karlebotn ENVELOPE(28.571,28.571,70.119,70.119) Norway The Holocene 28 12 1855 1869 |
institution |
Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
topic |
VDP::Geofag: 450 |
spellingShingle |
VDP::Geofag: 450 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::Geofag: 450 |
description |
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 |
Edward Arnold |
publishDate |
2018 |
url |
http://hdl.handle.net/10852/69191 http://urn.nb.no/URN:NBN:no-72336 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 permafrost Subarctic Finnmark |
genre_facet |
Finnmark Karlebotn Lakselv Northern Norway Peat permafrost Subarctic Finnmark |
op_source |
0959-6836 |
op_relation |
NFR/244903/E10 NFR/255331 VETENSKAPSRÅDET/214–2014-562 http://urn.nb.no/URN:NBN:no-72336 Kjellman, Sofia E. Axelsson, Pia E. Etzelmüller, Bernd Westermann, Sebastian Sannel, A. Britta K. . Holocene development of subarctic permafrost peatlands in Finnmark, northern Norway. The Holocene. 2018, 28(12), 1855-1869 http://hdl.handle.net/10852/69191 1644824 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=The Holocene&rft.volume=28&rft.spage=1855&rft.date=2018 The Holocene 28 12 1855 1869 http://dx.doi.org/10.1177/0959683618798126 URN:NBN:no-72336 Fulltext https://www.duo.uio.no/bitstream/handle/10852/69191/1/Kjellman%2Bet%2Bal.%2B2018_final%2Bdraft.pdf |
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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1765999433728655360 |