Late Holocene environmental and climatic changes in the Western Sayan Mountains based on high‐resolution multi‐proxy data
Southern Siberia is characterized by complex climatic and vegetation patterns, and the late‐Quaternary evolution of climate and vegetation in this vast region is still poorly understood. This study uses pollen, spores, testate amoebae and plant macrofossils to characterize environmental and climatic...
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crwiley:10.1111/bor.12493 2024-06-23T07:57:08+00:00 Late Holocene environmental and climatic changes in the Western Sayan Mountains based on high‐resolution multi‐proxy data Blyakharchuk, Tatiana Kurina, Irina Russian Foundation for Basic Research 2020 http://dx.doi.org/10.1111/bor.12493 https://onlinelibrary.wiley.com/doi/pdf/10.1111/bor.12493 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/bor.12493 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Boreas volume 50, issue 4, page 919-934 ISSN 0300-9483 1502-3885 journal-article 2020 crwiley https://doi.org/10.1111/bor.12493 2024-06-13T04:22:30Z Southern Siberia is characterized by complex climatic and vegetation patterns, and the late‐Quaternary evolution of climate and vegetation in this vast region is still poorly understood. This study uses pollen, spores, testate amoebae and plant macrofossils to characterize environmental and climatic changes at Bezrybnoe Mire (Western Sayan Mountains, southern Central Siberia). Pollen data indicate permanent forest cover in the region during the Late Holocene and subtle variations in abundances of dominant taxa ( Pinus sibirica , Abies sibirica , Larix , Pinus sylvestris and Betula pendula ). Higher values of Betula and Artemisia at the beginning of the record (>2500 cal. a BP , probably c . 3300 cal. a BP ) and c . 420–140 cal. a BP suggest slight expansion of birch forest and steppe. The intervening period has higher values of dark taiga taxa, suggesting a shift to higher moisture levels. Superimposed on this longer‐term variation, the testate amoeba record of mire wetness reveals 12 sub‐millennial episodes of drier conditions (with a sample resolution of c . 50–90 years). Mire plant communities reacted to the high‐frequency fluctuations in moisture but with a delayed response of c . 30–40 years. Both the short‐ and long‐term variations in moisture show general concordance with neighbouring regional records and align with observed cultural changes of the Eurasian steppe region. These variations in moisture probably relate to the degree of penetration of the moisture‐bearing Westerlies into southern Siberia. Article in Journal/Newspaper taiga Siberia Wiley Online Library Boreas 50 4 919 934 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Southern Siberia is characterized by complex climatic and vegetation patterns, and the late‐Quaternary evolution of climate and vegetation in this vast region is still poorly understood. This study uses pollen, spores, testate amoebae and plant macrofossils to characterize environmental and climatic changes at Bezrybnoe Mire (Western Sayan Mountains, southern Central Siberia). Pollen data indicate permanent forest cover in the region during the Late Holocene and subtle variations in abundances of dominant taxa ( Pinus sibirica , Abies sibirica , Larix , Pinus sylvestris and Betula pendula ). Higher values of Betula and Artemisia at the beginning of the record (>2500 cal. a BP , probably c . 3300 cal. a BP ) and c . 420–140 cal. a BP suggest slight expansion of birch forest and steppe. The intervening period has higher values of dark taiga taxa, suggesting a shift to higher moisture levels. Superimposed on this longer‐term variation, the testate amoeba record of mire wetness reveals 12 sub‐millennial episodes of drier conditions (with a sample resolution of c . 50–90 years). Mire plant communities reacted to the high‐frequency fluctuations in moisture but with a delayed response of c . 30–40 years. Both the short‐ and long‐term variations in moisture show general concordance with neighbouring regional records and align with observed cultural changes of the Eurasian steppe region. These variations in moisture probably relate to the degree of penetration of the moisture‐bearing Westerlies into southern Siberia. |
author2 |
Russian Foundation for Basic Research |
format |
Article in Journal/Newspaper |
author |
Blyakharchuk, Tatiana Kurina, Irina |
spellingShingle |
Blyakharchuk, Tatiana Kurina, Irina Late Holocene environmental and climatic changes in the Western Sayan Mountains based on high‐resolution multi‐proxy data |
author_facet |
Blyakharchuk, Tatiana Kurina, Irina |
author_sort |
Blyakharchuk, Tatiana |
title |
Late Holocene environmental and climatic changes in the Western Sayan Mountains based on high‐resolution multi‐proxy data |
title_short |
Late Holocene environmental and climatic changes in the Western Sayan Mountains based on high‐resolution multi‐proxy data |
title_full |
Late Holocene environmental and climatic changes in the Western Sayan Mountains based on high‐resolution multi‐proxy data |
title_fullStr |
Late Holocene environmental and climatic changes in the Western Sayan Mountains based on high‐resolution multi‐proxy data |
title_full_unstemmed |
Late Holocene environmental and climatic changes in the Western Sayan Mountains based on high‐resolution multi‐proxy data |
title_sort |
late holocene environmental and climatic changes in the western sayan mountains based on high‐resolution multi‐proxy data |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1111/bor.12493 https://onlinelibrary.wiley.com/doi/pdf/10.1111/bor.12493 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/bor.12493 |
genre |
taiga Siberia |
genre_facet |
taiga Siberia |
op_source |
Boreas volume 50, issue 4, page 919-934 ISSN 0300-9483 1502-3885 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/bor.12493 |
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Boreas |
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50 |
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4 |
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919 |
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934 |
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1802650600696971264 |