Localized Vegetation, Soil Moisture, and Ice Content Offset Permafrost Degradation under Climate Warming
Rapid Arctic warming is expected to result in widespread permafrost degradation. However, observations show that site-specific conditions (vegetation and soils) may offset the reaction of permafrost to climate change. This paper summarizes 43 years of interannual seasonal thaw observations from tund...
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ftmdpi:oai:mdpi.com:/2076-3263/13/5/129/ 2023-08-20T03:59:05+02:00 Localized Vegetation, Soil Moisture, and Ice Content Offset Permafrost Degradation under Climate Warming Gleb E. Oblogov Alexander A. Vasiliev Dmitry A. Streletskiy Nikolay I. Shiklomanov Kelsey E. Nyland agris 2023-04-29 application/pdf https://doi.org/10.3390/geosciences13050129 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/geosciences13050129 https://creativecommons.org/licenses/by/4.0/ Geosciences; Volume 13; Issue 5; Pages: 129 permafrost active layer climate change monitoring northwest Russian Arctic Text 2023 ftmdpi https://doi.org/10.3390/geosciences13050129 2023-08-01T09:54:06Z Rapid Arctic warming is expected to result in widespread permafrost degradation. However, observations show that site-specific conditions (vegetation and soils) may offset the reaction of permafrost to climate change. This paper summarizes 43 years of interannual seasonal thaw observations from tundra landscapes surrounding the Marre-Sale on the west coast of the Yamal Peninsula, northwest Siberia. This robust dataset includes landscape-specific climate, active layer thickness, soil moisture, and vegetation observations at multiple scales. Long-term trends from these hierarchically scaled observations indicate that drained landscapes exhibit the most pronounced responses to changing climatic conditions, while moist and wet tundra landscapes exhibit decreasing active layer thickness, and river floodplain landscapes do not show changes in the active layer. The slow increase in seasonal thaw depth despite significant warming observed over the last four decades on the Yamal Peninsula can be explained by thickening moss covers and ground surface subsidence as the transient layer (ice-rich upper permafrost soil horizon) thaws and compacts. The uneven proliferation of specific vegetation communities, primarily mosses, is significantly contributing to spatial variability observed in active layer dynamics. Based on these findings, we recommend that regional permafrost assessments employ a mean landscape-scale active layer thickness that weights the proportions of different landscape types. Text Active layer thickness Arctic Climate change Ice permafrost Tundra Yamal Peninsula Siberia MDPI Open Access Publishing Arctic Yamal Peninsula ENVELOPE(69.873,69.873,70.816,70.816) Geosciences 13 5 129 |
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Open Polar |
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MDPI Open Access Publishing |
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English |
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permafrost active layer climate change monitoring northwest Russian Arctic |
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permafrost active layer climate change monitoring northwest Russian Arctic Gleb E. Oblogov Alexander A. Vasiliev Dmitry A. Streletskiy Nikolay I. Shiklomanov Kelsey E. Nyland Localized Vegetation, Soil Moisture, and Ice Content Offset Permafrost Degradation under Climate Warming |
topic_facet |
permafrost active layer climate change monitoring northwest Russian Arctic |
description |
Rapid Arctic warming is expected to result in widespread permafrost degradation. However, observations show that site-specific conditions (vegetation and soils) may offset the reaction of permafrost to climate change. This paper summarizes 43 years of interannual seasonal thaw observations from tundra landscapes surrounding the Marre-Sale on the west coast of the Yamal Peninsula, northwest Siberia. This robust dataset includes landscape-specific climate, active layer thickness, soil moisture, and vegetation observations at multiple scales. Long-term trends from these hierarchically scaled observations indicate that drained landscapes exhibit the most pronounced responses to changing climatic conditions, while moist and wet tundra landscapes exhibit decreasing active layer thickness, and river floodplain landscapes do not show changes in the active layer. The slow increase in seasonal thaw depth despite significant warming observed over the last four decades on the Yamal Peninsula can be explained by thickening moss covers and ground surface subsidence as the transient layer (ice-rich upper permafrost soil horizon) thaws and compacts. The uneven proliferation of specific vegetation communities, primarily mosses, is significantly contributing to spatial variability observed in active layer dynamics. Based on these findings, we recommend that regional permafrost assessments employ a mean landscape-scale active layer thickness that weights the proportions of different landscape types. |
format |
Text |
author |
Gleb E. Oblogov Alexander A. Vasiliev Dmitry A. Streletskiy Nikolay I. Shiklomanov Kelsey E. Nyland |
author_facet |
Gleb E. Oblogov Alexander A. Vasiliev Dmitry A. Streletskiy Nikolay I. Shiklomanov Kelsey E. Nyland |
author_sort |
Gleb E. Oblogov |
title |
Localized Vegetation, Soil Moisture, and Ice Content Offset Permafrost Degradation under Climate Warming |
title_short |
Localized Vegetation, Soil Moisture, and Ice Content Offset Permafrost Degradation under Climate Warming |
title_full |
Localized Vegetation, Soil Moisture, and Ice Content Offset Permafrost Degradation under Climate Warming |
title_fullStr |
Localized Vegetation, Soil Moisture, and Ice Content Offset Permafrost Degradation under Climate Warming |
title_full_unstemmed |
Localized Vegetation, Soil Moisture, and Ice Content Offset Permafrost Degradation under Climate Warming |
title_sort |
localized vegetation, soil moisture, and ice content offset permafrost degradation under climate warming |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2023 |
url |
https://doi.org/10.3390/geosciences13050129 |
op_coverage |
agris |
long_lat |
ENVELOPE(69.873,69.873,70.816,70.816) |
geographic |
Arctic Yamal Peninsula |
geographic_facet |
Arctic Yamal Peninsula |
genre |
Active layer thickness Arctic Climate change Ice permafrost Tundra Yamal Peninsula Siberia |
genre_facet |
Active layer thickness Arctic Climate change Ice permafrost Tundra Yamal Peninsula Siberia |
op_source |
Geosciences; Volume 13; Issue 5; Pages: 129 |
op_relation |
https://dx.doi.org/10.3390/geosciences13050129 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/geosciences13050129 |
container_title |
Geosciences |
container_volume |
13 |
container_issue |
5 |
container_start_page |
129 |
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1774714148321492992 |