Vulnerability of high latitude soil organic carbon in North America to disturbance
This synthesis addresses the vulnerability of the North American high-latitude soil organic carbon (SOC) pool to climate change. Disturbances caused by climate warming in arctic, subarctic, and boreal environments can result in significant redistribution of C among major reservoirs with potential gl...
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ftmichigantuniv:oai:digitalcommons.mtu.edu:mtri_p-1002 2023-05-15T15:00:52+02:00 Vulnerability of high latitude soil organic carbon in North America to disturbance Grosse, Guido Harden, Jennifer Turetsky, Merritt McGuire, David A. Camill, Philip Tarnocai, Charles Frolking, Steve Schuur, Edward A.G. Jorgenson, Torre Marchenko, Sergei Romanovsky, Vladimir Wickland, Kimberly P. French, Nancy H. F. Waldrop, Mark Bourgeau-Chavez, Laura Striegl, Robert G. 2011-12-01T08:00:00Z application/pdf https://digitalcommons.mtu.edu/mtri_p/2 https://digitalcommons.mtu.edu/cgi/viewcontent.cgi?article=1002&context=mtri_p unknown Digital Commons @ Michigan Tech https://digitalcommons.mtu.edu/mtri_p/2 https://digitalcommons.mtu.edu/cgi/viewcontent.cgi?article=1002&context=mtri_p Michigan Tech Research Institute Publications ALASKA BOREAL FOREST BLACK SPRUCE FORESTS PERMAFROST-AFFECTED SOILS INTERNATIONAL POLAR YEAR ARCTIC COASTAL-PLAIN WEST-CENTRAL CANADA THAW LAKE BASINS CLIMATE-CHANGE INTERIOR ALASKA DISCONTINUOUS PERMAFROST Environmental Sciences Geology Physical Sciences and Mathematics Soil Science text 2011 ftmichigantuniv 2022-01-23T10:29:21Z This synthesis addresses the vulnerability of the North American high-latitude soil organic carbon (SOC) pool to climate change. Disturbances caused by climate warming in arctic, subarctic, and boreal environments can result in significant redistribution of C among major reservoirs with potential global impacts. We divide the current northern high-latitude SOC pools into (1) near-surface soils where SOC is affected by seasonal freeze-thaw processes and changes in moisture status, and (2) deeper permafrost and peatland strata down to several tens of meters depth where SOC is usually not affected by short-term changes. We address key factors (permafrost, vegetation, hydrology, paleoenvironmental history) and processes (C input, storage, decomposition, and output) responsible for the formation of the large high-latitude SOC pool in North America and highlight how climate-related disturbances could alter this pool's character and size. Press disturbances of relatively slow but persistent nature such as top-down thawing of permafrost, and changes in hydrology, microbiological communities, pedological processes, and vegetation types, as well as pulse disturbances of relatively rapid and local nature such as wildfires and thermokarst, could substantially impact SOC stocks. Ongoing climate warming in the North American high-latitude region could result in crossing environmental thresholds, thereby accelerating press disturbances and increasingly triggering pulse disturbances and eventually affecting the C source/sink net character of northern high-latitude soils. Finally, we assess postdisturbance feedbacks, models, and predictions for the northern high-latitude SOC pool, and discuss data and research gaps to be addressed by future research. Text Arctic Climate change International Polar Year permafrost Subarctic Thermokarst Alaska Michigan Technological University: Digital Commons @ Michigan Tech Arctic Canada |
institution |
Open Polar |
collection |
Michigan Technological University: Digital Commons @ Michigan Tech |
op_collection_id |
ftmichigantuniv |
language |
unknown |
topic |
ALASKA BOREAL FOREST BLACK SPRUCE FORESTS PERMAFROST-AFFECTED SOILS INTERNATIONAL POLAR YEAR ARCTIC COASTAL-PLAIN WEST-CENTRAL CANADA THAW LAKE BASINS CLIMATE-CHANGE INTERIOR ALASKA DISCONTINUOUS PERMAFROST Environmental Sciences Geology Physical Sciences and Mathematics Soil Science |
spellingShingle |
ALASKA BOREAL FOREST BLACK SPRUCE FORESTS PERMAFROST-AFFECTED SOILS INTERNATIONAL POLAR YEAR ARCTIC COASTAL-PLAIN WEST-CENTRAL CANADA THAW LAKE BASINS CLIMATE-CHANGE INTERIOR ALASKA DISCONTINUOUS PERMAFROST Environmental Sciences Geology Physical Sciences and Mathematics Soil Science Grosse, Guido Harden, Jennifer Turetsky, Merritt McGuire, David A. Camill, Philip Tarnocai, Charles Frolking, Steve Schuur, Edward A.G. Jorgenson, Torre Marchenko, Sergei Romanovsky, Vladimir Wickland, Kimberly P. French, Nancy H. F. Waldrop, Mark Bourgeau-Chavez, Laura Striegl, Robert G. Vulnerability of high latitude soil organic carbon in North America to disturbance |
topic_facet |
ALASKA BOREAL FOREST BLACK SPRUCE FORESTS PERMAFROST-AFFECTED SOILS INTERNATIONAL POLAR YEAR ARCTIC COASTAL-PLAIN WEST-CENTRAL CANADA THAW LAKE BASINS CLIMATE-CHANGE INTERIOR ALASKA DISCONTINUOUS PERMAFROST Environmental Sciences Geology Physical Sciences and Mathematics Soil Science |
description |
This synthesis addresses the vulnerability of the North American high-latitude soil organic carbon (SOC) pool to climate change. Disturbances caused by climate warming in arctic, subarctic, and boreal environments can result in significant redistribution of C among major reservoirs with potential global impacts. We divide the current northern high-latitude SOC pools into (1) near-surface soils where SOC is affected by seasonal freeze-thaw processes and changes in moisture status, and (2) deeper permafrost and peatland strata down to several tens of meters depth where SOC is usually not affected by short-term changes. We address key factors (permafrost, vegetation, hydrology, paleoenvironmental history) and processes (C input, storage, decomposition, and output) responsible for the formation of the large high-latitude SOC pool in North America and highlight how climate-related disturbances could alter this pool's character and size. Press disturbances of relatively slow but persistent nature such as top-down thawing of permafrost, and changes in hydrology, microbiological communities, pedological processes, and vegetation types, as well as pulse disturbances of relatively rapid and local nature such as wildfires and thermokarst, could substantially impact SOC stocks. Ongoing climate warming in the North American high-latitude region could result in crossing environmental thresholds, thereby accelerating press disturbances and increasingly triggering pulse disturbances and eventually affecting the C source/sink net character of northern high-latitude soils. Finally, we assess postdisturbance feedbacks, models, and predictions for the northern high-latitude SOC pool, and discuss data and research gaps to be addressed by future research. |
format |
Text |
author |
Grosse, Guido Harden, Jennifer Turetsky, Merritt McGuire, David A. Camill, Philip Tarnocai, Charles Frolking, Steve Schuur, Edward A.G. Jorgenson, Torre Marchenko, Sergei Romanovsky, Vladimir Wickland, Kimberly P. French, Nancy H. F. Waldrop, Mark Bourgeau-Chavez, Laura Striegl, Robert G. |
author_facet |
Grosse, Guido Harden, Jennifer Turetsky, Merritt McGuire, David A. Camill, Philip Tarnocai, Charles Frolking, Steve Schuur, Edward A.G. Jorgenson, Torre Marchenko, Sergei Romanovsky, Vladimir Wickland, Kimberly P. French, Nancy H. F. Waldrop, Mark Bourgeau-Chavez, Laura Striegl, Robert G. |
author_sort |
Grosse, Guido |
title |
Vulnerability of high latitude soil organic carbon in North America to disturbance |
title_short |
Vulnerability of high latitude soil organic carbon in North America to disturbance |
title_full |
Vulnerability of high latitude soil organic carbon in North America to disturbance |
title_fullStr |
Vulnerability of high latitude soil organic carbon in North America to disturbance |
title_full_unstemmed |
Vulnerability of high latitude soil organic carbon in North America to disturbance |
title_sort |
vulnerability of high latitude soil organic carbon in north america to disturbance |
publisher |
Digital Commons @ Michigan Tech |
publishDate |
2011 |
url |
https://digitalcommons.mtu.edu/mtri_p/2 https://digitalcommons.mtu.edu/cgi/viewcontent.cgi?article=1002&context=mtri_p |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic Climate change International Polar Year permafrost Subarctic Thermokarst Alaska |
genre_facet |
Arctic Climate change International Polar Year permafrost Subarctic Thermokarst Alaska |
op_source |
Michigan Tech Research Institute Publications |
op_relation |
https://digitalcommons.mtu.edu/mtri_p/2 https://digitalcommons.mtu.edu/cgi/viewcontent.cgi?article=1002&context=mtri_p |
_version_ |
1766332924904341504 |