Shallow soils are warmer under trees and tall shrubs across Arctic and Boreal ecosystems
Soils are warming as air temperatures rise across the Arctic and Boreal region concurrent with the expansion of tall-statured shrubs and trees in the tundra. Changes in vegetation structure and function are expected to alter soil thermal regimes, thereby modifying climate feedbacks related to permaf...
Published in: | Environmental Research Letters |
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2023
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Online Access: | http://www.osti.gov/servlets/purl/1712723 https://www.osti.gov/biblio/1712723 https://doi.org/10.1088/1748-9326/abc994 |
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ftosti:oai:osti.gov:1712723 2023-07-30T04:01:15+02:00 Shallow soils are warmer under trees and tall shrubs across Arctic and Boreal ecosystems Kropp, Heather Loranty, Michael M. Natali, Susan M. Kholodov, Alexander L. Rocha, Adrian V. Myers-Smith, Isla H. Abbott, Benjamin W. Abermann, Jakob Blanc-Betes, Elena Blok, Daan Blume-Werry, Gesche Boike, Julia Breen, Amy L. Cahoon, Sean M.P. Christiansen, Casper T. Douglas, Thomas A. Epstein, Howard E. Frost, Gerald V. Goeckede, Mathias Høye, Toke T. Mamet, Steven Douglas O'Donnell, Jonathan A. Olefeldt, David Phoenix, Gareth K. Salmon, Verity G. Sannel, Anna Kristina Smith, Sharon L. Sonnentag, Oliver Vaughn, Lydia Williams, Mathew Elberling, Bo Gough, Laura Hjort, Jan Lafleur, Peter M. Euskirchen, Eugenie S. Heijmans, Monique Humphreys, Elyn R. Iwata, Hiroki Jones, Benjamin M. Jorgenson, Torre Grünberg, Inge Kim, Yongwon Laundre, James Mauritz, Marguerite Michelsen, Anders Schaepman-Strub, Gabriela Tape, Ken D. Ueyama, Masahito Lee, Bang-Yong Langley, Kirsty Lund, Magnus 2023-07-03 application/pdf http://www.osti.gov/servlets/purl/1712723 https://www.osti.gov/biblio/1712723 https://doi.org/10.1088/1748-9326/abc994 unknown http://www.osti.gov/servlets/purl/1712723 https://www.osti.gov/biblio/1712723 https://doi.org/10.1088/1748-9326/abc994 doi:10.1088/1748-9326/abc994 54 ENVIRONMENTAL SCIENCES 2023 ftosti https://doi.org/10.1088/1748-9326/abc994 2023-07-11T09:53:52Z Soils are warming as air temperatures rise across the Arctic and Boreal region concurrent with the expansion of tall-statured shrubs and trees in the tundra. Changes in vegetation structure and function are expected to alter soil thermal regimes, thereby modifying climate feedbacks related to permafrost thaw and carbon cycling. However, current understanding of vegetation impacts on soil temperature is limited to local or regional scales and lacks the generality necessary to predict soil warming and permafrost stability on a pan-Arctic scale. Here we synthesize shallow soil and air temperature observations with broad spatial and temporal coverage collected across 106 sites representing nine different vegetation types in the permafrost region. We showed ecosystems with tall-statured shrubs and trees (> 40 cm) have warmer shallow soils than those with short-statured tundra vegetation when normalized to a constant air temperature. In tree and tall shrub vegetation types, cooler temperatures in the warm season do not lead to cooler mean annual soil temperature indicating that ground thermal regimes in the cold-season rather than the warm-season are most critical for predicting soil warming in ecosystems underlain by permafrost. Our results suggest that the expansion of tall shrubs and trees into tundra regions can amplify shallow soil warming, and could increase the potential for increased seasonal thaw depth and increase soil carbon cycling rates and lead to increased carbon dioxide loss and further permafrost thaw. Other/Unknown Material Arctic permafrost Tundra SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Arctic Environmental Research Letters 16 1 015001 |
institution |
Open Polar |
collection |
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
op_collection_id |
ftosti |
language |
unknown |
topic |
54 ENVIRONMENTAL SCIENCES |
spellingShingle |
54 ENVIRONMENTAL SCIENCES Kropp, Heather Loranty, Michael M. Natali, Susan M. Kholodov, Alexander L. Rocha, Adrian V. Myers-Smith, Isla H. Abbott, Benjamin W. Abermann, Jakob Blanc-Betes, Elena Blok, Daan Blume-Werry, Gesche Boike, Julia Breen, Amy L. Cahoon, Sean M.P. Christiansen, Casper T. Douglas, Thomas A. Epstein, Howard E. Frost, Gerald V. Goeckede, Mathias Høye, Toke T. Mamet, Steven Douglas O'Donnell, Jonathan A. Olefeldt, David Phoenix, Gareth K. Salmon, Verity G. Sannel, Anna Kristina Smith, Sharon L. Sonnentag, Oliver Vaughn, Lydia Williams, Mathew Elberling, Bo Gough, Laura Hjort, Jan Lafleur, Peter M. Euskirchen, Eugenie S. Heijmans, Monique Humphreys, Elyn R. Iwata, Hiroki Jones, Benjamin M. Jorgenson, Torre Grünberg, Inge Kim, Yongwon Laundre, James Mauritz, Marguerite Michelsen, Anders Schaepman-Strub, Gabriela Tape, Ken D. Ueyama, Masahito Lee, Bang-Yong Langley, Kirsty Lund, Magnus Shallow soils are warmer under trees and tall shrubs across Arctic and Boreal ecosystems |
topic_facet |
54 ENVIRONMENTAL SCIENCES |
description |
Soils are warming as air temperatures rise across the Arctic and Boreal region concurrent with the expansion of tall-statured shrubs and trees in the tundra. Changes in vegetation structure and function are expected to alter soil thermal regimes, thereby modifying climate feedbacks related to permafrost thaw and carbon cycling. However, current understanding of vegetation impacts on soil temperature is limited to local or regional scales and lacks the generality necessary to predict soil warming and permafrost stability on a pan-Arctic scale. Here we synthesize shallow soil and air temperature observations with broad spatial and temporal coverage collected across 106 sites representing nine different vegetation types in the permafrost region. We showed ecosystems with tall-statured shrubs and trees (> 40 cm) have warmer shallow soils than those with short-statured tundra vegetation when normalized to a constant air temperature. In tree and tall shrub vegetation types, cooler temperatures in the warm season do not lead to cooler mean annual soil temperature indicating that ground thermal regimes in the cold-season rather than the warm-season are most critical for predicting soil warming in ecosystems underlain by permafrost. Our results suggest that the expansion of tall shrubs and trees into tundra regions can amplify shallow soil warming, and could increase the potential for increased seasonal thaw depth and increase soil carbon cycling rates and lead to increased carbon dioxide loss and further permafrost thaw. |
author |
Kropp, Heather Loranty, Michael M. Natali, Susan M. Kholodov, Alexander L. Rocha, Adrian V. Myers-Smith, Isla H. Abbott, Benjamin W. Abermann, Jakob Blanc-Betes, Elena Blok, Daan Blume-Werry, Gesche Boike, Julia Breen, Amy L. Cahoon, Sean M.P. Christiansen, Casper T. Douglas, Thomas A. Epstein, Howard E. Frost, Gerald V. Goeckede, Mathias Høye, Toke T. Mamet, Steven Douglas O'Donnell, Jonathan A. Olefeldt, David Phoenix, Gareth K. Salmon, Verity G. Sannel, Anna Kristina Smith, Sharon L. Sonnentag, Oliver Vaughn, Lydia Williams, Mathew Elberling, Bo Gough, Laura Hjort, Jan Lafleur, Peter M. Euskirchen, Eugenie S. Heijmans, Monique Humphreys, Elyn R. Iwata, Hiroki Jones, Benjamin M. Jorgenson, Torre Grünberg, Inge Kim, Yongwon Laundre, James Mauritz, Marguerite Michelsen, Anders Schaepman-Strub, Gabriela Tape, Ken D. Ueyama, Masahito Lee, Bang-Yong Langley, Kirsty Lund, Magnus |
author_facet |
Kropp, Heather Loranty, Michael M. Natali, Susan M. Kholodov, Alexander L. Rocha, Adrian V. Myers-Smith, Isla H. Abbott, Benjamin W. Abermann, Jakob Blanc-Betes, Elena Blok, Daan Blume-Werry, Gesche Boike, Julia Breen, Amy L. Cahoon, Sean M.P. Christiansen, Casper T. Douglas, Thomas A. Epstein, Howard E. Frost, Gerald V. Goeckede, Mathias Høye, Toke T. Mamet, Steven Douglas O'Donnell, Jonathan A. Olefeldt, David Phoenix, Gareth K. Salmon, Verity G. Sannel, Anna Kristina Smith, Sharon L. Sonnentag, Oliver Vaughn, Lydia Williams, Mathew Elberling, Bo Gough, Laura Hjort, Jan Lafleur, Peter M. Euskirchen, Eugenie S. Heijmans, Monique Humphreys, Elyn R. Iwata, Hiroki Jones, Benjamin M. Jorgenson, Torre Grünberg, Inge Kim, Yongwon Laundre, James Mauritz, Marguerite Michelsen, Anders Schaepman-Strub, Gabriela Tape, Ken D. Ueyama, Masahito Lee, Bang-Yong Langley, Kirsty Lund, Magnus |
author_sort |
Kropp, Heather |
title |
Shallow soils are warmer under trees and tall shrubs across Arctic and Boreal ecosystems |
title_short |
Shallow soils are warmer under trees and tall shrubs across Arctic and Boreal ecosystems |
title_full |
Shallow soils are warmer under trees and tall shrubs across Arctic and Boreal ecosystems |
title_fullStr |
Shallow soils are warmer under trees and tall shrubs across Arctic and Boreal ecosystems |
title_full_unstemmed |
Shallow soils are warmer under trees and tall shrubs across Arctic and Boreal ecosystems |
title_sort |
shallow soils are warmer under trees and tall shrubs across arctic and boreal ecosystems |
publishDate |
2023 |
url |
http://www.osti.gov/servlets/purl/1712723 https://www.osti.gov/biblio/1712723 https://doi.org/10.1088/1748-9326/abc994 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic permafrost Tundra |
genre_facet |
Arctic permafrost Tundra |
op_relation |
http://www.osti.gov/servlets/purl/1712723 https://www.osti.gov/biblio/1712723 https://doi.org/10.1088/1748-9326/abc994 doi:10.1088/1748-9326/abc994 |
op_doi |
https://doi.org/10.1088/1748-9326/abc994 |
container_title |
Environmental Research Letters |
container_volume |
16 |
container_issue |
1 |
container_start_page |
015001 |
_version_ |
1772812008221048832 |