Importance of Cryoturbation in Redistributing Organic Carbon in Permafrost‐Affected Soils
This study examined the amount of soil organic carbon (SOC) incorporated by cryoturbation into the active layer and near‐surface permafrost of Turbels from northern Alaska. An analysis of 21 pedons revealed that an average of 55% of the SOC density of the active layer and near‐surface permafrost cou...
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crwiley:10.2136/sssaj2006.0414n 2024-10-06T13:46:08+00:00 Importance of Cryoturbation in Redistributing Organic Carbon in Permafrost‐Affected Soils Bockheim, J. G. National Science Foundation, Office of Polar Programs, Arctic Systems Science Program 2007 http://dx.doi.org/10.2136/sssaj2006.0414n https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.2136%2Fsssaj2006.0414N http://onlinelibrary.wiley.com/wol1/doi/10.2136/sssaj2006.0414N/fullpdf en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Soil Science Society of America Journal volume 71, issue 4, page 1335-1342 ISSN 0361-5995 1435-0661 journal-article 2007 crwiley https://doi.org/10.2136/sssaj2006.0414n 2024-09-17T04:50:02Z This study examined the amount of soil organic carbon (SOC) incorporated by cryoturbation into the active layer and near‐surface permafrost of Turbels from northern Alaska. An analysis of 21 pedons revealed that an average of 55% of the SOC density of the active layer and near‐surface permafrost could be attributed to redistribution from cryoturbation. Cryoturbation occurs most strongly under conditions of poor drainage, where the parent materials are enriched in silt, and where frost boils are present. Based on published radiocarbon dates of buried SOC, cryoturbation was particularly important during periods of the mid‐Holocene when the arctic underwent warming. These results suggest that continued warming of the arctic could accelerate cryoturbation and enable the soil to store more SOC than at present, thereby mitigating some of the loss of CO 2 to the atmosphere from increased soil respiration. Article in Journal/Newspaper Arctic permafrost Alaska Wiley Online Library Arctic Soil Science Society of America Journal 71 4 1335 1342 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
This study examined the amount of soil organic carbon (SOC) incorporated by cryoturbation into the active layer and near‐surface permafrost of Turbels from northern Alaska. An analysis of 21 pedons revealed that an average of 55% of the SOC density of the active layer and near‐surface permafrost could be attributed to redistribution from cryoturbation. Cryoturbation occurs most strongly under conditions of poor drainage, where the parent materials are enriched in silt, and where frost boils are present. Based on published radiocarbon dates of buried SOC, cryoturbation was particularly important during periods of the mid‐Holocene when the arctic underwent warming. These results suggest that continued warming of the arctic could accelerate cryoturbation and enable the soil to store more SOC than at present, thereby mitigating some of the loss of CO 2 to the atmosphere from increased soil respiration. |
author2 |
National Science Foundation, Office of Polar Programs, Arctic Systems Science Program |
format |
Article in Journal/Newspaper |
author |
Bockheim, J. G. |
spellingShingle |
Bockheim, J. G. Importance of Cryoturbation in Redistributing Organic Carbon in Permafrost‐Affected Soils |
author_facet |
Bockheim, J. G. |
author_sort |
Bockheim, J. G. |
title |
Importance of Cryoturbation in Redistributing Organic Carbon in Permafrost‐Affected Soils |
title_short |
Importance of Cryoturbation in Redistributing Organic Carbon in Permafrost‐Affected Soils |
title_full |
Importance of Cryoturbation in Redistributing Organic Carbon in Permafrost‐Affected Soils |
title_fullStr |
Importance of Cryoturbation in Redistributing Organic Carbon in Permafrost‐Affected Soils |
title_full_unstemmed |
Importance of Cryoturbation in Redistributing Organic Carbon in Permafrost‐Affected Soils |
title_sort |
importance of cryoturbation in redistributing organic carbon in permafrost‐affected soils |
publisher |
Wiley |
publishDate |
2007 |
url |
http://dx.doi.org/10.2136/sssaj2006.0414n https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.2136%2Fsssaj2006.0414N http://onlinelibrary.wiley.com/wol1/doi/10.2136/sssaj2006.0414N/fullpdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic permafrost Alaska |
genre_facet |
Arctic permafrost Alaska |
op_source |
Soil Science Society of America Journal volume 71, issue 4, page 1335-1342 ISSN 0361-5995 1435-0661 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.2136/sssaj2006.0414n |
container_title |
Soil Science Society of America Journal |
container_volume |
71 |
container_issue |
4 |
container_start_page |
1335 |
op_container_end_page |
1342 |
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1812174473071165440 |