Fires and forests: A reconstruction of Holocene fire-vegetation relationships in Central Yakutia, Siberia
The year 2021 set new records for wildfire extent in the Republic of Sakha (Yakutia) in eastern Siberia, Russia. Wildfire seasons in this unique region, characterized by its deciduous boreal forest and permafrost landforms, are becoming more intense. Some fires are threatening local communities, whi...
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ftawi:oai:epic.awi.de:55961 2024-09-15T18:29:59+00:00 Fires and forests: A reconstruction of Holocene fire-vegetation relationships in Central Yakutia, Siberia Glückler, Ramesh Geng, Rongwei Grimm, Lennart Baisheva, Izabella Herzschuh, Ulrike Kruse, Stefan Andreev, Andrei Böhmer, Thomas Vyse, Stuart Pestryakova, Luidmila Dietze, Elisabeth 2022-03 application/pdf https://epic.awi.de/id/eprint/55961/ https://epic.awi.de/id/eprint/55961/1/EGU22-499-print.pdf https://doi.org/10.5194/egusphere-egu22-499 https://hdl.handle.net/10013/epic.649ae7f2-5b40-4128-a881-13554356a887 unknown https://epic.awi.de/id/eprint/55961/1/EGU22-499-print.pdf Glückler, R. orcid:0000-0003-1800-8601 , Geng, R. orcid:0000-0003-4356-4458 , Grimm, L. , Baisheva, I. orcid:0000-0002-9330-1122 , Herzschuh, U. orcid:0000-0003-0999-1261 , Kruse, S. orcid:0000-0003-1107-1958 , Andreev, A. orcid:0000-0002-8745-9636 , Böhmer, T. , Vyse, S. , Pestryakova, L. and Dietze, E. orcid:0000-0003-4817-8441 (2022) Fires and forests: A reconstruction of Holocene fire-vegetation relationships in Central Yakutia, Siberia , EGU General Assembly 2022, Vienna, Austria, 23 May 2022 - 27 May 2022 . doi:10.5194/egusphere-egu22-499 <https://doi.org/10.5194/egusphere-egu22-499> , hdl:10013/epic.649ae7f2-5b40-4128-a881-13554356a887 EPIC3EGU General Assembly 2022, Vienna, Austria, 2022-05-23-2022-05-27 Conference notRev 2022 ftawi https://doi.org/10.5194/egusphere-egu22-499 2024-06-24T04:28:46Z The year 2021 set new records for wildfire extent in the Republic of Sakha (Yakutia) in eastern Siberia, Russia. Wildfire seasons in this unique region, characterized by its deciduous boreal forest and permafrost landforms, are becoming more intense. Some fires are threatening local communities, while their smoke covers vast stretches of land every summer, posing health risks to people even in the distance. At the same time, the larch trees of the eastern Siberian boreal forest stabilize the permafrost soils below as guardians of a continental-scale storage of terrestrial carbon. It is still largely unknown how the current trend of wildfire intensification will develop in the future, and how it will modify the structure of the boreal forests within the next decades to centuries. However, even though needed for a well-founded evaluation of long-term impacts of changing fire regimes, data on past trends of wildfire activity still remains scarce in eastern Siberia. Here, we present a new reconstruction of boreal fire and vegetation dynamics, spanning the last ca. 10.8 ka. Continuously analyzed macroscopic charcoal particles and a REVEALS-transformed pollen record from a sediment core from Lake Satagay (N 63.078, E 117.998) give insight into long-term trends and relationships between changes in fire regime and vegetation composition and coverage. The data indicates that modern larch-dominated forests co-exist with a lower severity fire regime, whereas early Holocene open larch-birch woodlands enabled increased charcoal accumulation and thus supported a higher severity fire regime. Considering the expected increase in tree mortality caused by wildfires and insect damage, likely to thin out currently denser tree stands, this fire-vegetation relationship suggests a potential upcoming positive feedback on intensifying fire regimes. Conference Object permafrost Republic of Sakha Sakha Yakutia Siberia Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
The year 2021 set new records for wildfire extent in the Republic of Sakha (Yakutia) in eastern Siberia, Russia. Wildfire seasons in this unique region, characterized by its deciduous boreal forest and permafrost landforms, are becoming more intense. Some fires are threatening local communities, while their smoke covers vast stretches of land every summer, posing health risks to people even in the distance. At the same time, the larch trees of the eastern Siberian boreal forest stabilize the permafrost soils below as guardians of a continental-scale storage of terrestrial carbon. It is still largely unknown how the current trend of wildfire intensification will develop in the future, and how it will modify the structure of the boreal forests within the next decades to centuries. However, even though needed for a well-founded evaluation of long-term impacts of changing fire regimes, data on past trends of wildfire activity still remains scarce in eastern Siberia. Here, we present a new reconstruction of boreal fire and vegetation dynamics, spanning the last ca. 10.8 ka. Continuously analyzed macroscopic charcoal particles and a REVEALS-transformed pollen record from a sediment core from Lake Satagay (N 63.078, E 117.998) give insight into long-term trends and relationships between changes in fire regime and vegetation composition and coverage. The data indicates that modern larch-dominated forests co-exist with a lower severity fire regime, whereas early Holocene open larch-birch woodlands enabled increased charcoal accumulation and thus supported a higher severity fire regime. Considering the expected increase in tree mortality caused by wildfires and insect damage, likely to thin out currently denser tree stands, this fire-vegetation relationship suggests a potential upcoming positive feedback on intensifying fire regimes. |
format |
Conference Object |
author |
Glückler, Ramesh Geng, Rongwei Grimm, Lennart Baisheva, Izabella Herzschuh, Ulrike Kruse, Stefan Andreev, Andrei Böhmer, Thomas Vyse, Stuart Pestryakova, Luidmila Dietze, Elisabeth |
spellingShingle |
Glückler, Ramesh Geng, Rongwei Grimm, Lennart Baisheva, Izabella Herzschuh, Ulrike Kruse, Stefan Andreev, Andrei Böhmer, Thomas Vyse, Stuart Pestryakova, Luidmila Dietze, Elisabeth Fires and forests: A reconstruction of Holocene fire-vegetation relationships in Central Yakutia, Siberia |
author_facet |
Glückler, Ramesh Geng, Rongwei Grimm, Lennart Baisheva, Izabella Herzschuh, Ulrike Kruse, Stefan Andreev, Andrei Böhmer, Thomas Vyse, Stuart Pestryakova, Luidmila Dietze, Elisabeth |
author_sort |
Glückler, Ramesh |
title |
Fires and forests: A reconstruction of Holocene fire-vegetation relationships in Central Yakutia, Siberia |
title_short |
Fires and forests: A reconstruction of Holocene fire-vegetation relationships in Central Yakutia, Siberia |
title_full |
Fires and forests: A reconstruction of Holocene fire-vegetation relationships in Central Yakutia, Siberia |
title_fullStr |
Fires and forests: A reconstruction of Holocene fire-vegetation relationships in Central Yakutia, Siberia |
title_full_unstemmed |
Fires and forests: A reconstruction of Holocene fire-vegetation relationships in Central Yakutia, Siberia |
title_sort |
fires and forests: a reconstruction of holocene fire-vegetation relationships in central yakutia, siberia |
publishDate |
2022 |
url |
https://epic.awi.de/id/eprint/55961/ https://epic.awi.de/id/eprint/55961/1/EGU22-499-print.pdf https://doi.org/10.5194/egusphere-egu22-499 https://hdl.handle.net/10013/epic.649ae7f2-5b40-4128-a881-13554356a887 |
genre |
permafrost Republic of Sakha Sakha Yakutia Siberia |
genre_facet |
permafrost Republic of Sakha Sakha Yakutia Siberia |
op_source |
EPIC3EGU General Assembly 2022, Vienna, Austria, 2022-05-23-2022-05-27 |
op_relation |
https://epic.awi.de/id/eprint/55961/1/EGU22-499-print.pdf Glückler, R. orcid:0000-0003-1800-8601 , Geng, R. orcid:0000-0003-4356-4458 , Grimm, L. , Baisheva, I. orcid:0000-0002-9330-1122 , Herzschuh, U. orcid:0000-0003-0999-1261 , Kruse, S. orcid:0000-0003-1107-1958 , Andreev, A. orcid:0000-0002-8745-9636 , Böhmer, T. , Vyse, S. , Pestryakova, L. and Dietze, E. orcid:0000-0003-4817-8441 (2022) Fires and forests: A reconstruction of Holocene fire-vegetation relationships in Central Yakutia, Siberia , EGU General Assembly 2022, Vienna, Austria, 23 May 2022 - 27 May 2022 . doi:10.5194/egusphere-egu22-499 <https://doi.org/10.5194/egusphere-egu22-499> , hdl:10013/epic.649ae7f2-5b40-4128-a881-13554356a887 |
op_doi |
https://doi.org/10.5194/egusphere-egu22-499 |
_version_ |
1810471476055244800 |