Potential remobilization of belowground permafrost carbon under future global warming
Abstract Research on permafrost carbon has dramatically increased in the past few years. A new estimate of 1672 Pg C of belowground organic carbon in the northern circumpolar permafrost region more than doubles the previous value and highlights the potential role of permafrost carbon in the Earth Sy...
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crwiley:10.1002/ppp.684 2024-06-23T07:55:37+00:00 Potential remobilization of belowground permafrost carbon under future global warming Kuhry, P. Dorrepaal, E. Hugelius, G. Schuur, E. A. G. Tarnocai, C. 2010 http://dx.doi.org/10.1002/ppp.684 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.684 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.684 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 21, issue 2, page 208-214 ISSN 1045-6740 1099-1530 journal-article 2010 crwiley https://doi.org/10.1002/ppp.684 2024-06-11T04:48:43Z Abstract Research on permafrost carbon has dramatically increased in the past few years. A new estimate of 1672 Pg C of belowground organic carbon in the northern circumpolar permafrost region more than doubles the previous value and highlights the potential role of permafrost carbon in the Earth System. Uncertainties in this new estimate remain due to relatively few available pedon data for certain geographic sectors and the deeper cryoturbated soil horizons, and the large polygon size in the soil maps used for upscaling. The large permafrost carbon pool is not equally distributed across the landscape: peat deposits, cryoturbated soils and the loess‐like deposits of the yedoma complex contain disproportionately large amounts of soil organic matter, often exhibiting a low degree of decomposition. Recent findings in Alaska and northern Sweden provide strong evidence that the deeper soil carbon in permafrost terrain is starting to be released, supporting previous reports from Siberia. The permafrost carbon pool is not yet fully integrated in climate and ecosystem models and an important objective should be to define typical pedons appropriate for model setups. The thawing permafrost carbon feedback needs to be included in model projections of future climate change. Copyright © 2010 John Wiley & Sons, Ltd. Article in Journal/Newspaper Northern Sweden permafrost Permafrost and Periglacial Processes Alaska Siberia Wiley Online Library Permafrost and Periglacial Processes 21 2 208 214 |
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English |
description |
Abstract Research on permafrost carbon has dramatically increased in the past few years. A new estimate of 1672 Pg C of belowground organic carbon in the northern circumpolar permafrost region more than doubles the previous value and highlights the potential role of permafrost carbon in the Earth System. Uncertainties in this new estimate remain due to relatively few available pedon data for certain geographic sectors and the deeper cryoturbated soil horizons, and the large polygon size in the soil maps used for upscaling. The large permafrost carbon pool is not equally distributed across the landscape: peat deposits, cryoturbated soils and the loess‐like deposits of the yedoma complex contain disproportionately large amounts of soil organic matter, often exhibiting a low degree of decomposition. Recent findings in Alaska and northern Sweden provide strong evidence that the deeper soil carbon in permafrost terrain is starting to be released, supporting previous reports from Siberia. The permafrost carbon pool is not yet fully integrated in climate and ecosystem models and an important objective should be to define typical pedons appropriate for model setups. The thawing permafrost carbon feedback needs to be included in model projections of future climate change. Copyright © 2010 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Kuhry, P. Dorrepaal, E. Hugelius, G. Schuur, E. A. G. Tarnocai, C. |
spellingShingle |
Kuhry, P. Dorrepaal, E. Hugelius, G. Schuur, E. A. G. Tarnocai, C. Potential remobilization of belowground permafrost carbon under future global warming |
author_facet |
Kuhry, P. Dorrepaal, E. Hugelius, G. Schuur, E. A. G. Tarnocai, C. |
author_sort |
Kuhry, P. |
title |
Potential remobilization of belowground permafrost carbon under future global warming |
title_short |
Potential remobilization of belowground permafrost carbon under future global warming |
title_full |
Potential remobilization of belowground permafrost carbon under future global warming |
title_fullStr |
Potential remobilization of belowground permafrost carbon under future global warming |
title_full_unstemmed |
Potential remobilization of belowground permafrost carbon under future global warming |
title_sort |
potential remobilization of belowground permafrost carbon under future global warming |
publisher |
Wiley |
publishDate |
2010 |
url |
http://dx.doi.org/10.1002/ppp.684 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.684 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.684 |
genre |
Northern Sweden permafrost Permafrost and Periglacial Processes Alaska Siberia |
genre_facet |
Northern Sweden permafrost Permafrost and Periglacial Processes Alaska Siberia |
op_source |
Permafrost and Periglacial Processes volume 21, issue 2, page 208-214 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.684 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
21 |
container_issue |
2 |
container_start_page |
208 |
op_container_end_page |
214 |
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1802648272009953280 |