Net carbon accumulation of a high-latitude permafrost palsa mire similar to permafrost-free peatlands
Palsa mires, nutrient poor permafrost peatlands common in subarctic regions, store a significant amount of carbon (C) and it has been hypothesized their net ecosystem C balance (NECB) is sensitive to climate change. Over two years we measured the NECB for Stordalen palsa mire and found it to accumul...
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Online Access: | https://lup.lub.lu.se/record/2409876 https://doi.org/10.1029/2011GL050355 |
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ftulundlup:oai:lup.lub.lu.se:769a6eec-4ec5-4678-8bde-fc21f15277c5 2023-05-15T17:54:25+02:00 Net carbon accumulation of a high-latitude permafrost palsa mire similar to permafrost-free peatlands Olefeldt, David Roulet, Nigel T. Bergeron, Onil Crill, Patrick Backstrand, Kristina Christensen, Torben 2012 https://lup.lub.lu.se/record/2409876 https://doi.org/10.1029/2011GL050355 eng eng American Geophysical Union (AGU) https://lup.lub.lu.se/record/2409876 http://dx.doi.org/10.1029/2011GL050355 wos:000299991700003 scopus:84856264654 Geophysical Research Letters; 39, pp 03501-03501 (2012) ISSN: 1944-8007 Physical Geography contributiontojournal/article info:eu-repo/semantics/article text 2012 ftulundlup https://doi.org/10.1029/2011GL050355 2023-02-01T23:27:03Z Palsa mires, nutrient poor permafrost peatlands common in subarctic regions, store a significant amount of carbon (C) and it has been hypothesized their net ecosystem C balance (NECB) is sensitive to climate change. Over two years we measured the NECB for Stordalen palsa mire and found it to accumulate 46 g C m(-2) yr(-1). While Stordalen NECB is comparable to nutrient poor peatlands without permafrost, the component fluxes differ considerably in magnitude. Specifically, Stordalen had both lower growing season CO2 uptake and wintertime CO2 losses, but importantly also low dissolved organic carbon exports and hydrocarbon (mainly methane) emissions. Restricted C losses from palsa mires are likely to have facilitated C accumulation of unproductive subarctic permafrost peatlands. Continued climate change and permafrost thaw is likely to amplify several component fluxes, with an uncertain overall effect on NECB - highlighting the necessity for projections of high-latitude C storage to consider all C fluxes. Citation: Olefeldt, D., N. T. Roulet, O. Bergeron, P. Crill, K. Backstrand, and T. R. Christensen (2012), Net carbon accumulation of a high-latitude permafrost palsa mire similar to permafrost-free peatlands, Geophys. Res. Lett., 39, L03501, doi:10.1029/2011GL050355. Article in Journal/Newspaper palsa permafrost Subarctic Lund University Publications (LUP) Christensen ENVELOPE(47.867,47.867,-67.967,-67.967) Stordalen ENVELOPE(7.337,7.337,62.510,62.510) Geophysical Research Letters 39 3 n/a n/a |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Physical Geography |
spellingShingle |
Physical Geography Olefeldt, David Roulet, Nigel T. Bergeron, Onil Crill, Patrick Backstrand, Kristina Christensen, Torben Net carbon accumulation of a high-latitude permafrost palsa mire similar to permafrost-free peatlands |
topic_facet |
Physical Geography |
description |
Palsa mires, nutrient poor permafrost peatlands common in subarctic regions, store a significant amount of carbon (C) and it has been hypothesized their net ecosystem C balance (NECB) is sensitive to climate change. Over two years we measured the NECB for Stordalen palsa mire and found it to accumulate 46 g C m(-2) yr(-1). While Stordalen NECB is comparable to nutrient poor peatlands without permafrost, the component fluxes differ considerably in magnitude. Specifically, Stordalen had both lower growing season CO2 uptake and wintertime CO2 losses, but importantly also low dissolved organic carbon exports and hydrocarbon (mainly methane) emissions. Restricted C losses from palsa mires are likely to have facilitated C accumulation of unproductive subarctic permafrost peatlands. Continued climate change and permafrost thaw is likely to amplify several component fluxes, with an uncertain overall effect on NECB - highlighting the necessity for projections of high-latitude C storage to consider all C fluxes. Citation: Olefeldt, D., N. T. Roulet, O. Bergeron, P. Crill, K. Backstrand, and T. R. Christensen (2012), Net carbon accumulation of a high-latitude permafrost palsa mire similar to permafrost-free peatlands, Geophys. Res. Lett., 39, L03501, doi:10.1029/2011GL050355. |
format |
Article in Journal/Newspaper |
author |
Olefeldt, David Roulet, Nigel T. Bergeron, Onil Crill, Patrick Backstrand, Kristina Christensen, Torben |
author_facet |
Olefeldt, David Roulet, Nigel T. Bergeron, Onil Crill, Patrick Backstrand, Kristina Christensen, Torben |
author_sort |
Olefeldt, David |
title |
Net carbon accumulation of a high-latitude permafrost palsa mire similar to permafrost-free peatlands |
title_short |
Net carbon accumulation of a high-latitude permafrost palsa mire similar to permafrost-free peatlands |
title_full |
Net carbon accumulation of a high-latitude permafrost palsa mire similar to permafrost-free peatlands |
title_fullStr |
Net carbon accumulation of a high-latitude permafrost palsa mire similar to permafrost-free peatlands |
title_full_unstemmed |
Net carbon accumulation of a high-latitude permafrost palsa mire similar to permafrost-free peatlands |
title_sort |
net carbon accumulation of a high-latitude permafrost palsa mire similar to permafrost-free peatlands |
publisher |
American Geophysical Union (AGU) |
publishDate |
2012 |
url |
https://lup.lub.lu.se/record/2409876 https://doi.org/10.1029/2011GL050355 |
long_lat |
ENVELOPE(47.867,47.867,-67.967,-67.967) ENVELOPE(7.337,7.337,62.510,62.510) |
geographic |
Christensen Stordalen |
geographic_facet |
Christensen Stordalen |
genre |
palsa permafrost Subarctic |
genre_facet |
palsa permafrost Subarctic |
op_source |
Geophysical Research Letters; 39, pp 03501-03501 (2012) ISSN: 1944-8007 |
op_relation |
https://lup.lub.lu.se/record/2409876 http://dx.doi.org/10.1029/2011GL050355 wos:000299991700003 scopus:84856264654 |
op_doi |
https://doi.org/10.1029/2011GL050355 |
container_title |
Geophysical Research Letters |
container_volume |
39 |
container_issue |
3 |
container_start_page |
n/a |
op_container_end_page |
n/a |
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1766162177112145920 |