Pollen-based holocene thawing-history of permafrost in Northern Asia and its potential impacts on climate change
As the recent permafrost thawing of northern Asia proceeds due to anthropogenic climate change, precise and detailed palaeoecological records from past warm periods are essential to anticipate the extent of future permafrost variations. Here, based on the modern relationship between permafrost and v...
Published in: | Frontiers in Ecology and Evolution |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | Russian |
Published: |
2022
|
Subjects: | |
Online Access: | https://doi.org/10.3389/fevo.2022.894471 https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001001005 |
id |
fttomskstateuniv:koha:001001005 |
---|---|
record_format |
openpolar |
spelling |
fttomskstateuniv:koha:001001005 2023-06-11T04:15:51+02:00 Pollen-based holocene thawing-history of permafrost in Northern Asia and its potential impacts on climate change Li, Wenjia Tian, Fang Rudaya, Natalia Herzschuh, Ulrike Cao, Xianyong 2022 https://doi.org/10.3389/fevo.2022.894471 https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001001005 ru rus koha:001001005 doi:10.3389/fevo.2022.894471 https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001001005 Frontiers in ecology and evolution. 2022. Vol. 10. P. 894471 (1-13) пыльца вечная мерзлота Сибирь поздний голоцен Северная Азия изменение климата метод случайного леса алгоритм машинного обучения статьи в журналах info:eu-repo/semantics/article 2022 fttomskstateuniv https://doi.org/10.3389/fevo.2022.894471 2023-05-02T16:38:24Z As the recent permafrost thawing of northern Asia proceeds due to anthropogenic climate change, precise and detailed palaeoecological records from past warm periods are essential to anticipate the extent of future permafrost variations. Here, based on the modern relationship between permafrost and vegetation (represented by pollen assemblages), we trained a Random Forest model using pollen and permafrost data and verified its reliability to reconstruct the history of permafrost in northern Asia during the Holocene. An early Holocene (12-8 cal ka BP) strong thawing trend, a middle-to-late Holocene (8-2 cal ka BP) relatively slow thawing trend, and a late Holocene freezing trend of permafrost in northern Asia are consistent with climatic proxies such as summer solar radiation and Northern Hemisphere temperature. The extensive distribution of permafrost in northern Asia inhibited the spread of evergreen coniferous trees during the early Holocene warming and might have decelerated the enhancement of the East Asian summer monsoon (EASM) by altering hydrological processes and albedo. Based on these findings, we suggest that studies of the EASM should consider more the state of permafrost and vegetation in northern Asia, which are often overlooked and may have a profound impact on climate change in this region. Article in Journal/Newspaper permafrost вечная мерзлота Tomsk State University Research Library Frontiers in Ecology and Evolution 10 |
institution |
Open Polar |
collection |
Tomsk State University Research Library |
op_collection_id |
fttomskstateuniv |
language |
Russian |
topic |
пыльца вечная мерзлота Сибирь поздний голоцен Северная Азия изменение климата метод случайного леса алгоритм машинного обучения |
spellingShingle |
пыльца вечная мерзлота Сибирь поздний голоцен Северная Азия изменение климата метод случайного леса алгоритм машинного обучения Li, Wenjia Tian, Fang Rudaya, Natalia Herzschuh, Ulrike Cao, Xianyong Pollen-based holocene thawing-history of permafrost in Northern Asia and its potential impacts on climate change |
topic_facet |
пыльца вечная мерзлота Сибирь поздний голоцен Северная Азия изменение климата метод случайного леса алгоритм машинного обучения |
description |
As the recent permafrost thawing of northern Asia proceeds due to anthropogenic climate change, precise and detailed palaeoecological records from past warm periods are essential to anticipate the extent of future permafrost variations. Here, based on the modern relationship between permafrost and vegetation (represented by pollen assemblages), we trained a Random Forest model using pollen and permafrost data and verified its reliability to reconstruct the history of permafrost in northern Asia during the Holocene. An early Holocene (12-8 cal ka BP) strong thawing trend, a middle-to-late Holocene (8-2 cal ka BP) relatively slow thawing trend, and a late Holocene freezing trend of permafrost in northern Asia are consistent with climatic proxies such as summer solar radiation and Northern Hemisphere temperature. The extensive distribution of permafrost in northern Asia inhibited the spread of evergreen coniferous trees during the early Holocene warming and might have decelerated the enhancement of the East Asian summer monsoon (EASM) by altering hydrological processes and albedo. Based on these findings, we suggest that studies of the EASM should consider more the state of permafrost and vegetation in northern Asia, which are often overlooked and may have a profound impact on climate change in this region. |
format |
Article in Journal/Newspaper |
author |
Li, Wenjia Tian, Fang Rudaya, Natalia Herzschuh, Ulrike Cao, Xianyong |
author_facet |
Li, Wenjia Tian, Fang Rudaya, Natalia Herzschuh, Ulrike Cao, Xianyong |
author_sort |
Li, Wenjia |
title |
Pollen-based holocene thawing-history of permafrost in Northern Asia and its potential impacts on climate change |
title_short |
Pollen-based holocene thawing-history of permafrost in Northern Asia and its potential impacts on climate change |
title_full |
Pollen-based holocene thawing-history of permafrost in Northern Asia and its potential impacts on climate change |
title_fullStr |
Pollen-based holocene thawing-history of permafrost in Northern Asia and its potential impacts on climate change |
title_full_unstemmed |
Pollen-based holocene thawing-history of permafrost in Northern Asia and its potential impacts on climate change |
title_sort |
pollen-based holocene thawing-history of permafrost in northern asia and its potential impacts on climate change |
publishDate |
2022 |
url |
https://doi.org/10.3389/fevo.2022.894471 https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001001005 |
genre |
permafrost вечная мерзлота |
genre_facet |
permafrost вечная мерзлота |
op_source |
Frontiers in ecology and evolution. 2022. Vol. 10. P. 894471 (1-13) |
op_relation |
koha:001001005 doi:10.3389/fevo.2022.894471 https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001001005 |
op_doi |
https://doi.org/10.3389/fevo.2022.894471 |
container_title |
Frontiers in Ecology and Evolution |
container_volume |
10 |
_version_ |
1768373010419417088 |