Large loss of CO2 in winter observed across the northern permafrost region
Recent warming in the Arctic, which has been amplified during the winter1–3, greatly enhances microbial decomposition of soil organic matter and subsequent release of carbon dioxide (CO2)4. However, the amount of CO2 released in winter is not known and has not been well represented by ecosystem mode...
Published in: | Nature Climate Change |
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Online Access: | https://lup.lub.lu.se/record/fe49519c-11af-4322-ba39-3b3e84e684d5 https://doi.org/10.1038/s41558-019-0592-8 |
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ftulundlup:oai:lup.lub.lu.se:fe49519c-11af-4322-ba39-3b3e84e684d5 2023-05-15T14:57:44+02:00 Large loss of CO2 in winter observed across the northern permafrost region Natali, Susan M. Parmentier, Frans-Jan Pirk, Norbert Zona, Donatella 2019 https://lup.lub.lu.se/record/fe49519c-11af-4322-ba39-3b3e84e684d5 https://doi.org/10.1038/s41558-019-0592-8 eng eng Nature Publishing Group https://lup.lub.lu.se/record/fe49519c-11af-4322-ba39-3b3e84e684d5 http://dx.doi.org/10.1038/s41558-019-0592-8 scopus:85074223265 Nature Climate Change; 9(11), pp 852-857 (2019) ISSN: 1758-6798 Climate Research contributiontojournal/article info:eu-repo/semantics/article text 2019 ftulundlup https://doi.org/10.1038/s41558-019-0592-8 2023-02-01T23:39:41Z Recent warming in the Arctic, which has been amplified during the winter1–3, greatly enhances microbial decomposition of soil organic matter and subsequent release of carbon dioxide (CO2)4. However, the amount of CO2 released in winter is not known and has not been well represented by ecosystem models or empirically based estimates5,6. Here we synthesize regional in situ observations of CO2 flux from Arctic and boreal soils to assess current and future winter carbon losses from the northern permafrost domain. We estimate a contemporary loss of 1,662 TgC per year from the permafrost region during the winter season (October–April). This loss is greater than the average growing season carbon uptake for this region estimated from process models (−1,032 TgC per year). Extending model predictions to warmer conditions up to 2100 indicates that winter CO2 emissions will increase 17% under a moderate mitigation scenario—Representative Concentration Pathway 4.5—and 41% under business-as-usual emissions scenario—Representative Concentration Pathway 8.5. Our results provide a baseline for winter CO2 emissions from northern terrestrial regions and indicate that enhanced soil CO2 loss due to winter warming may offset growing season carbon uptake under future climatic conditions. © 2019, The Author(s), under exclusive licence to Springer Nature Limited. Article in Journal/Newspaper Arctic permafrost Lund University Publications (LUP) Arctic Nature Climate Change 9 11 852 857 |
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Open Polar |
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Lund University Publications (LUP) |
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ftulundlup |
language |
English |
topic |
Climate Research |
spellingShingle |
Climate Research Natali, Susan M. Parmentier, Frans-Jan Pirk, Norbert Zona, Donatella Large loss of CO2 in winter observed across the northern permafrost region |
topic_facet |
Climate Research |
description |
Recent warming in the Arctic, which has been amplified during the winter1–3, greatly enhances microbial decomposition of soil organic matter and subsequent release of carbon dioxide (CO2)4. However, the amount of CO2 released in winter is not known and has not been well represented by ecosystem models or empirically based estimates5,6. Here we synthesize regional in situ observations of CO2 flux from Arctic and boreal soils to assess current and future winter carbon losses from the northern permafrost domain. We estimate a contemporary loss of 1,662 TgC per year from the permafrost region during the winter season (October–April). This loss is greater than the average growing season carbon uptake for this region estimated from process models (−1,032 TgC per year). Extending model predictions to warmer conditions up to 2100 indicates that winter CO2 emissions will increase 17% under a moderate mitigation scenario—Representative Concentration Pathway 4.5—and 41% under business-as-usual emissions scenario—Representative Concentration Pathway 8.5. Our results provide a baseline for winter CO2 emissions from northern terrestrial regions and indicate that enhanced soil CO2 loss due to winter warming may offset growing season carbon uptake under future climatic conditions. © 2019, The Author(s), under exclusive licence to Springer Nature Limited. |
format |
Article in Journal/Newspaper |
author |
Natali, Susan M. Parmentier, Frans-Jan Pirk, Norbert Zona, Donatella |
author_facet |
Natali, Susan M. Parmentier, Frans-Jan Pirk, Norbert Zona, Donatella |
author_sort |
Natali, Susan M. |
title |
Large loss of CO2 in winter observed across the northern permafrost region |
title_short |
Large loss of CO2 in winter observed across the northern permafrost region |
title_full |
Large loss of CO2 in winter observed across the northern permafrost region |
title_fullStr |
Large loss of CO2 in winter observed across the northern permafrost region |
title_full_unstemmed |
Large loss of CO2 in winter observed across the northern permafrost region |
title_sort |
large loss of co2 in winter observed across the northern permafrost region |
publisher |
Nature Publishing Group |
publishDate |
2019 |
url |
https://lup.lub.lu.se/record/fe49519c-11af-4322-ba39-3b3e84e684d5 https://doi.org/10.1038/s41558-019-0592-8 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic permafrost |
genre_facet |
Arctic permafrost |
op_source |
Nature Climate Change; 9(11), pp 852-857 (2019) ISSN: 1758-6798 |
op_relation |
https://lup.lub.lu.se/record/fe49519c-11af-4322-ba39-3b3e84e684d5 http://dx.doi.org/10.1038/s41558-019-0592-8 scopus:85074223265 |
op_doi |
https://doi.org/10.1038/s41558-019-0592-8 |
container_title |
Nature Climate Change |
container_volume |
9 |
container_issue |
11 |
container_start_page |
852 |
op_container_end_page |
857 |
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1766329854256480256 |