Arctic Soil Governs Whether Climate Change Drives Global Losses or Gains in Soil Carbon
Key uncertainties in terrestrial carbon cycle projections revolve around the timing, direction, and magnitude of the carbon cycle feedback to climate change. This is especially true in carbon-rich Arctic ecosystems, where permafrost soils contain roughly one third of the world's soil carbon sto...
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Online Access: | http://www.osti.gov/servlets/purl/1863824 https://www.osti.gov/biblio/1863824 https://doi.org/10.1029/2019gl085543 |
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ftosti:oai:osti.gov:1863824 2023-07-30T04:00:58+02:00 Arctic Soil Governs Whether Climate Change Drives Global Losses or Gains in Soil Carbon Wieder, William R. Sulman, Benjamin N. Hartman, Melannie D. Koven, Charles D. Bradford, Mark A. 2022-04-25 application/pdf http://www.osti.gov/servlets/purl/1863824 https://www.osti.gov/biblio/1863824 https://doi.org/10.1029/2019gl085543 unknown http://www.osti.gov/servlets/purl/1863824 https://www.osti.gov/biblio/1863824 https://doi.org/10.1029/2019gl085543 doi:10.1029/2019gl085543 54 ENVIRONMENTAL SCIENCES 2022 ftosti https://doi.org/10.1029/2019gl085543 2023-07-11T10:11:53Z Key uncertainties in terrestrial carbon cycle projections revolve around the timing, direction, and magnitude of the carbon cycle feedback to climate change. This is especially true in carbon-rich Arctic ecosystems, where permafrost soils contain roughly one third of the world's soil carbon stocks, which are likely vulnerable to loss. Using an ensemble of soil biogeochemical models that reflect recent changes in the conceptual understanding of factors responsible for soil carbon persistence, we quantify potential soil carbon responses under two representative climate change scenarios. Our results illustrate that models disagree on the sign and magnitude of global soil changes through 2100, with disagreements primarily driven by divergent responses of Arctic systems. These results largely reflect different assumptions about the nature of soil carbon persistence and vulnerabilities, underscoring the challenges associated with setting allowable greenhouse gas emission targets that will limit global warming to 1.5°C. Other/Unknown Material Arctic Climate change Global warming permafrost SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Arctic Geophysical Research Letters 46 24 14486 14495 |
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Open Polar |
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SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
op_collection_id |
ftosti |
language |
unknown |
topic |
54 ENVIRONMENTAL SCIENCES |
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54 ENVIRONMENTAL SCIENCES Wieder, William R. Sulman, Benjamin N. Hartman, Melannie D. Koven, Charles D. Bradford, Mark A. Arctic Soil Governs Whether Climate Change Drives Global Losses or Gains in Soil Carbon |
topic_facet |
54 ENVIRONMENTAL SCIENCES |
description |
Key uncertainties in terrestrial carbon cycle projections revolve around the timing, direction, and magnitude of the carbon cycle feedback to climate change. This is especially true in carbon-rich Arctic ecosystems, where permafrost soils contain roughly one third of the world's soil carbon stocks, which are likely vulnerable to loss. Using an ensemble of soil biogeochemical models that reflect recent changes in the conceptual understanding of factors responsible for soil carbon persistence, we quantify potential soil carbon responses under two representative climate change scenarios. Our results illustrate that models disagree on the sign and magnitude of global soil changes through 2100, with disagreements primarily driven by divergent responses of Arctic systems. These results largely reflect different assumptions about the nature of soil carbon persistence and vulnerabilities, underscoring the challenges associated with setting allowable greenhouse gas emission targets that will limit global warming to 1.5°C. |
author |
Wieder, William R. Sulman, Benjamin N. Hartman, Melannie D. Koven, Charles D. Bradford, Mark A. |
author_facet |
Wieder, William R. Sulman, Benjamin N. Hartman, Melannie D. Koven, Charles D. Bradford, Mark A. |
author_sort |
Wieder, William R. |
title |
Arctic Soil Governs Whether Climate Change Drives Global Losses or Gains in Soil Carbon |
title_short |
Arctic Soil Governs Whether Climate Change Drives Global Losses or Gains in Soil Carbon |
title_full |
Arctic Soil Governs Whether Climate Change Drives Global Losses or Gains in Soil Carbon |
title_fullStr |
Arctic Soil Governs Whether Climate Change Drives Global Losses or Gains in Soil Carbon |
title_full_unstemmed |
Arctic Soil Governs Whether Climate Change Drives Global Losses or Gains in Soil Carbon |
title_sort |
arctic soil governs whether climate change drives global losses or gains in soil carbon |
publishDate |
2022 |
url |
http://www.osti.gov/servlets/purl/1863824 https://www.osti.gov/biblio/1863824 https://doi.org/10.1029/2019gl085543 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Global warming permafrost |
genre_facet |
Arctic Climate change Global warming permafrost |
op_relation |
http://www.osti.gov/servlets/purl/1863824 https://www.osti.gov/biblio/1863824 https://doi.org/10.1029/2019gl085543 doi:10.1029/2019gl085543 |
op_doi |
https://doi.org/10.1029/2019gl085543 |
container_title |
Geophysical Research Letters |
container_volume |
46 |
container_issue |
24 |
container_start_page |
14486 |
op_container_end_page |
14495 |
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1772811664564944896 |