Bulk density, and peat and net carbon accumulation of samples from Selwyn lake, Canada
Peat and net carbon accumulation rates in two sub-arctic peat plateaus of west-central Canada have been studied through geochemical analyses and accelerator mass spectrometry (AMS) radiocarbon dating. The peatland sites started to develop around 6600-5900 cal. yr BP and the peat plateau stages are c...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.833867 2023-05-15T14:25:02+02:00 Bulk density, and peat and net carbon accumulation of samples from Selwyn lake, Canada Sannel, A Britta K Kuhry, Peter LATITUDE: 59.883300 * LONGITUDE: -104.200000 * DATE/TIME START: 1993-09-01T00:00:00 * DATE/TIME END: 1993-09-01T00:00:00 2009-07-08 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.833867 https://doi.org/10.1594/PANGAEA.833867 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.833867 https://doi.org/10.1594/PANGAEA.833867 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Sannel, A Britta K; Kuhry, Peter (2009): Holocene peat growth and decay dynamics in sub-arctic peat plateaus, west-central Canada. Boreas, 38(1), 13-24, https://doi.org/10.1111/j.1502-3885.2008.00048.x CAN_SL1 Subarctic Dataset 2009 ftpangaea https://doi.org/10.1594/PANGAEA.833867 https://doi.org/10.1111/j.1502-3885.2008.00048.x 2023-01-20T07:33:18Z Peat and net carbon accumulation rates in two sub-arctic peat plateaus of west-central Canada have been studied through geochemical analyses and accelerator mass spectrometry (AMS) radiocarbon dating. The peatland sites started to develop around 6600-5900 cal. yr BP and the peat plateau stages are characterized by Sphagnum fuscum peat alternating with rootlet layers. The long-term peat and net carbon accumulation rates for both profiles are 0.30-0.31 mm/yr and 12.5-12.7 gC/m**2/yr, respectively. These values reflect very slow peat accumulation (0.04-0.09 mm/yr) and net carbon accumulation (3.7-5.2 gC/m**2/yr) in the top rootlet layers. Extensive AMS radiocarbon dating of one profile shows that accumulation rates are variable depending on peat plateau stage. Peat accumulation rates are up to six times higher and net carbon accumulation rates up to four times higher in S. fuscum than in rootlet stages. Local fires represented by charcoal remains in some of the rootlet layers result in very low accumulation rates. High C/N ratios throughout most of the peat profiles suggest low degrees of decomposition due to stable permafrost conditions. Hence, original peat accretion has remained largely unaltered, except in the initial stages of peatland development when permafrost was not yet present. Dataset Arctic Arctic Peat Peat plateau permafrost Subarctic PANGAEA - Data Publisher for Earth & Environmental Science Arctic Canada Selwyn ENVELOPE(-138.287,-138.287,62.799,62.799) Selwyn Lake ENVELOPE(-104.417,-104.417,60.084,60.084) ENVELOPE(-104.200000,-104.200000,59.883300,59.883300) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
CAN_SL1 Subarctic |
spellingShingle |
CAN_SL1 Subarctic Sannel, A Britta K Kuhry, Peter Bulk density, and peat and net carbon accumulation of samples from Selwyn lake, Canada |
topic_facet |
CAN_SL1 Subarctic |
description |
Peat and net carbon accumulation rates in two sub-arctic peat plateaus of west-central Canada have been studied through geochemical analyses and accelerator mass spectrometry (AMS) radiocarbon dating. The peatland sites started to develop around 6600-5900 cal. yr BP and the peat plateau stages are characterized by Sphagnum fuscum peat alternating with rootlet layers. The long-term peat and net carbon accumulation rates for both profiles are 0.30-0.31 mm/yr and 12.5-12.7 gC/m**2/yr, respectively. These values reflect very slow peat accumulation (0.04-0.09 mm/yr) and net carbon accumulation (3.7-5.2 gC/m**2/yr) in the top rootlet layers. Extensive AMS radiocarbon dating of one profile shows that accumulation rates are variable depending on peat plateau stage. Peat accumulation rates are up to six times higher and net carbon accumulation rates up to four times higher in S. fuscum than in rootlet stages. Local fires represented by charcoal remains in some of the rootlet layers result in very low accumulation rates. High C/N ratios throughout most of the peat profiles suggest low degrees of decomposition due to stable permafrost conditions. Hence, original peat accretion has remained largely unaltered, except in the initial stages of peatland development when permafrost was not yet present. |
format |
Dataset |
author |
Sannel, A Britta K Kuhry, Peter |
author_facet |
Sannel, A Britta K Kuhry, Peter |
author_sort |
Sannel, A Britta K |
title |
Bulk density, and peat and net carbon accumulation of samples from Selwyn lake, Canada |
title_short |
Bulk density, and peat and net carbon accumulation of samples from Selwyn lake, Canada |
title_full |
Bulk density, and peat and net carbon accumulation of samples from Selwyn lake, Canada |
title_fullStr |
Bulk density, and peat and net carbon accumulation of samples from Selwyn lake, Canada |
title_full_unstemmed |
Bulk density, and peat and net carbon accumulation of samples from Selwyn lake, Canada |
title_sort |
bulk density, and peat and net carbon accumulation of samples from selwyn lake, canada |
publisher |
PANGAEA |
publishDate |
2009 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.833867 https://doi.org/10.1594/PANGAEA.833867 |
op_coverage |
LATITUDE: 59.883300 * LONGITUDE: -104.200000 * DATE/TIME START: 1993-09-01T00:00:00 * DATE/TIME END: 1993-09-01T00:00:00 |
long_lat |
ENVELOPE(-138.287,-138.287,62.799,62.799) ENVELOPE(-104.417,-104.417,60.084,60.084) ENVELOPE(-104.200000,-104.200000,59.883300,59.883300) |
geographic |
Arctic Canada Selwyn Selwyn Lake |
geographic_facet |
Arctic Canada Selwyn Selwyn Lake |
genre |
Arctic Arctic Peat Peat plateau permafrost Subarctic |
genre_facet |
Arctic Arctic Peat Peat plateau permafrost Subarctic |
op_source |
Supplement to: Sannel, A Britta K; Kuhry, Peter (2009): Holocene peat growth and decay dynamics in sub-arctic peat plateaus, west-central Canada. Boreas, 38(1), 13-24, https://doi.org/10.1111/j.1502-3885.2008.00048.x |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.833867 https://doi.org/10.1594/PANGAEA.833867 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.833867 https://doi.org/10.1111/j.1502-3885.2008.00048.x |
_version_ |
1766297467553316864 |