Shallow soils are warmer under trees and tall shrubs across Arctic and Boreal ecosystems
Research output: Contribution to journal › Journal article › Research › peer-review
Standard
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; Abbot, 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 D.; O'Donnell, Jonathan A.; Olefeldt, David; Phoenix, Gareth K.; Salmon, Verity G.; Sannel, A. Britta K.; Smith, Sharon L.; Sonnentag, Oliver; Vaughn, Lydia Smith; Williams, Mathew; Elberling, Bo; Gough, Laura; Hjort, Jan; Lafleur, Peter M.; Euskirchen, Eugenie S.; Heijmans, Monique M. P. D.; Humphreys, Elyn R.; Iwata, Hiroki; Jones, Benjamin M.; Jorgenson, M. 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.
In: Environmental Research Letters, Vol. 16, No. 1, 015001, 2021.Research output: Contribution to journal › Journal article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Shallow soils are warmer under trees and tall shrubs across Arctic and Boreal ecosystems
AU - Kropp, Heather
AU - Loranty, Michael M.
AU - Natali, Susan M.
AU - Kholodov, Alexander L.
AU - Rocha, Adrian V.
AU - Myers-Smith, Isla
AU - Abbot, Benjamin W.
AU - Abermann, Jakob
AU - Blanc-Betes, Elena
AU - Blok, Daan
AU - Blume-Werry, Gesche
AU - Boike, Julia
AU - Breen, Amy L.
AU - Cahoon, Sean M. P.
AU - Christiansen, Casper T.
AU - Douglas, Thomas A.
AU - Epstein, Howard E.
AU - Frost, Gerald V.
AU - Goeckede, Mathias
AU - Høye, Toke T.
AU - Mamet, Steven D.
AU - O'Donnell, Jonathan A.
AU - Olefeldt, David
AU - Phoenix, Gareth K.
AU - Salmon, Verity G.
AU - Sannel, A. Britta K.
AU - Smith, Sharon L.
AU - Sonnentag, Oliver
AU - Vaughn, Lydia Smith
AU - Williams, Mathew
AU - Elberling, Bo
AU - Gough, Laura
AU - Hjort, Jan
AU - Lafleur, Peter M.
AU - Euskirchen, Eugenie S.
AU - Heijmans, Monique M. P. D.
AU - Humphreys, Elyn R.
AU - Iwata, Hiroki
AU - Jones, Benjamin M.
AU - Jorgenson, M. Torre
AU - Grünberg, Inge
AU - Kim, Yongwon
AU - Laundre, James
AU - Mauritz, Marguerite
AU - Michelsen, Anders
AU - Schaepman-Strub, Gabriela
AU - Tape, Ken D.
AU - Ueyama, Masahito
AU - Lee, Bang-Yong
AU - Langley, Kirsty
AU - Lund, Magnus
N1 - CENPERMOA[2021]
PY - 2021
Y1 - 2021
N2 - 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.
AB - 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.
KW - Arctic
KW - boreal forest
KW - soil temperature
KW - vegetation change
KW - permafrost
KW - PERMAFROST THAW
KW - CLIMATE-CHANGE
KW - NORTHERN ALASKA
KW - ACTIVE-LAYER
KW - VEGETATION
KW - EXPANSION
KW - DYNAMICS
KW - HEAT
KW - SNOW
KW - TEMPERATURES
U2 - 10.1088/1748-9326/abc994
DO - 10.1088/1748-9326/abc994
M3 - Journal article
VL - 16
JO - Environmental Research Letters
JF - Environmental Research Letters
SN - 1748-9326
IS - 1
M1 - 015001
ER -
ID: 254727537