Warming-induced contrasts in snow depth drive the future trajectory of soil carbon loss across the Arctic-Boreal region
Abstract The Arctic-Boreal region is projected to experience spatially divergent trends in snow depth following climate change. However, the impact of these spatial trends has remained largely unexplored, despite potentially large consequences for the carbon cycle. To address this knowledge gap, we...
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Nature Portfolio
2024-11-01
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| Series: | Communications Earth & Environment |
| Online Access: | https://doi.org/10.1038/s43247-024-01838-1 |
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| author | Alexandra Pongracz David Wårlind Paul A. Miller Adrian Gustafson Sam S. Rabin Frans-Jan W. Parmentier |
| author_facet | Alexandra Pongracz David Wårlind Paul A. Miller Adrian Gustafson Sam S. Rabin Frans-Jan W. Parmentier |
| author_sort | Alexandra Pongracz |
| collection | DOAJ |
| description | Abstract The Arctic-Boreal region is projected to experience spatially divergent trends in snow depth following climate change. However, the impact of these spatial trends has remained largely unexplored, despite potentially large consequences for the carbon cycle. To address this knowledge gap, we forced a customised arctic version of the dynamic vegetation model LPJ-GUESS with daily CMIP6 outputs from a global climate model (MRI-ESM2-0) under three climate scenarios. We find that snow depths increased the most in the coldest, northernmost regions, insulating the soil, which led to increased heterotrophic respiration and reduced carbon residence times. We emphasise the need for improved projections of future snow depth - in particular diverging trends across landscapes - to more accurately simulate the strength of Arctic-Boreal carbon feedbacks and their impact on global climate. |
| format | Article |
| id | doaj-art-0a81d35e1cae4eeaac2ca07dfe3d11c4 |
| institution | DOAJ |
| issn | 2662-4435 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Earth & Environment |
| spelling | doaj-art-0a81d35e1cae4eeaac2ca07dfe3d11c42025-08-20T02:50:08ZengNature PortfolioCommunications Earth & Environment2662-44352024-11-01511710.1038/s43247-024-01838-1Warming-induced contrasts in snow depth drive the future trajectory of soil carbon loss across the Arctic-Boreal regionAlexandra Pongracz0David Wårlind1Paul A. Miller2Adrian Gustafson3Sam S. Rabin4Frans-Jan W. Parmentier5Department of Physical Geography and Ecosystem Science, Lund UniversityDepartment of Physical Geography and Ecosystem Science, Lund UniversityDepartment of Physical Geography and Ecosystem Science, Lund UniversityDepartment of Physical Geography and Ecosystem Science, Lund UniversityDepartment of Environmental Sciences, Rutgers UniversityDepartment of Physical Geography and Ecosystem Science, Lund UniversityAbstract The Arctic-Boreal region is projected to experience spatially divergent trends in snow depth following climate change. However, the impact of these spatial trends has remained largely unexplored, despite potentially large consequences for the carbon cycle. To address this knowledge gap, we forced a customised arctic version of the dynamic vegetation model LPJ-GUESS with daily CMIP6 outputs from a global climate model (MRI-ESM2-0) under three climate scenarios. We find that snow depths increased the most in the coldest, northernmost regions, insulating the soil, which led to increased heterotrophic respiration and reduced carbon residence times. We emphasise the need for improved projections of future snow depth - in particular diverging trends across landscapes - to more accurately simulate the strength of Arctic-Boreal carbon feedbacks and their impact on global climate.https://doi.org/10.1038/s43247-024-01838-1 |
| spellingShingle | Alexandra Pongracz David Wårlind Paul A. Miller Adrian Gustafson Sam S. Rabin Frans-Jan W. Parmentier Warming-induced contrasts in snow depth drive the future trajectory of soil carbon loss across the Arctic-Boreal region Communications Earth & Environment |
| title | Warming-induced contrasts in snow depth drive the future trajectory of soil carbon loss across the Arctic-Boreal region |
| title_full | Warming-induced contrasts in snow depth drive the future trajectory of soil carbon loss across the Arctic-Boreal region |
| title_fullStr | Warming-induced contrasts in snow depth drive the future trajectory of soil carbon loss across the Arctic-Boreal region |
| title_full_unstemmed | Warming-induced contrasts in snow depth drive the future trajectory of soil carbon loss across the Arctic-Boreal region |
| title_short | Warming-induced contrasts in snow depth drive the future trajectory of soil carbon loss across the Arctic-Boreal region |
| title_sort | warming induced contrasts in snow depth drive the future trajectory of soil carbon loss across the arctic boreal region |
| url | https://doi.org/10.1038/s43247-024-01838-1 |
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