Vegetation history of central Chukotka deduced from permafrost paleoenvironmental records of the El'gygytgyn Impact Crater
Frozen sediments from three cores bored in the permafrost surrounding the El'gygytgyn Impact Crater Lake have been studied for pollen, non-pollen palynomorphs, plant macrofossils and rhizopods. The palynological study of these cores contributes to a higher resolution of time intervals presented...
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ftdoajarticles:oai:doaj.org/article:63b28fcd958b408e8f9f50d1228c2c95 2023-05-15T15:54:52+02:00 Vegetation history of central Chukotka deduced from permafrost paleoenvironmental records of the El'gygytgyn Impact Crater A. A. Andreev E. Morozova G. Fedorov L. Schirrmeister A. A. Bobrov F. Kienast G. Schwamborn 2012-08-01T00:00:00Z https://doi.org/10.5194/cp-8-1287-2012 https://doaj.org/article/63b28fcd958b408e8f9f50d1228c2c95 EN eng Copernicus Publications http://www.clim-past.net/8/1287/2012/cp-8-1287-2012.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 doi:10.5194/cp-8-1287-2012 1814-9324 1814-9332 https://doaj.org/article/63b28fcd958b408e8f9f50d1228c2c95 Climate of the Past, Vol 8, Iss 4, Pp 1287-1300 (2012) Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 article 2012 ftdoajarticles https://doi.org/10.5194/cp-8-1287-2012 2022-12-31T12:41:06Z Frozen sediments from three cores bored in the permafrost surrounding the El'gygytgyn Impact Crater Lake have been studied for pollen, non-pollen palynomorphs, plant macrofossils and rhizopods. The palynological study of these cores contributes to a higher resolution of time intervals presented in a poor temporal resolution in the lacustrine sediments; namely the Allerød and succeeding periods. Moreover, the permafrost records better reflect local environmental changes, allowing a more reliable reconstruction of the local paleoenvironments. The new data confirm that shrub tundra with dwarf birch, shrub alder and willow dominated the lake surroundings during the Allerød warming. Younger Dryas pollen assemblages reflect abrupt changes to grass-sedge-herb dominated environments reflecting significantly drier and cooler climate. Low shrub tundra with dwarf birch and willow dominate the lake vicinity at the onset of the Holocene. The find of larch seeds indicate its local presence around 11 000 cal yr BP and, thus a northward shift of treeline by about 100 km during the early Holocene thermal optimum. Forest tundra with larch and shrub alder stands grew in the area during the early Holocene. After ca. 3500 cal yr BP similar-to-modern plant communities became common in the lake vicinity. Article in Journal/Newspaper Chukotka Dwarf birch permafrost Tundra Directory of Open Access Journals: DOAJ Articles Crater Lake ENVELOPE(-60.667,-60.667,-62.983,-62.983) Climate of the Past 8 4 1287 1300 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 |
spellingShingle |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 A. A. Andreev E. Morozova G. Fedorov L. Schirrmeister A. A. Bobrov F. Kienast G. Schwamborn Vegetation history of central Chukotka deduced from permafrost paleoenvironmental records of the El'gygytgyn Impact Crater |
topic_facet |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 |
description |
Frozen sediments from three cores bored in the permafrost surrounding the El'gygytgyn Impact Crater Lake have been studied for pollen, non-pollen palynomorphs, plant macrofossils and rhizopods. The palynological study of these cores contributes to a higher resolution of time intervals presented in a poor temporal resolution in the lacustrine sediments; namely the Allerød and succeeding periods. Moreover, the permafrost records better reflect local environmental changes, allowing a more reliable reconstruction of the local paleoenvironments. The new data confirm that shrub tundra with dwarf birch, shrub alder and willow dominated the lake surroundings during the Allerød warming. Younger Dryas pollen assemblages reflect abrupt changes to grass-sedge-herb dominated environments reflecting significantly drier and cooler climate. Low shrub tundra with dwarf birch and willow dominate the lake vicinity at the onset of the Holocene. The find of larch seeds indicate its local presence around 11 000 cal yr BP and, thus a northward shift of treeline by about 100 km during the early Holocene thermal optimum. Forest tundra with larch and shrub alder stands grew in the area during the early Holocene. After ca. 3500 cal yr BP similar-to-modern plant communities became common in the lake vicinity. |
format |
Article in Journal/Newspaper |
author |
A. A. Andreev E. Morozova G. Fedorov L. Schirrmeister A. A. Bobrov F. Kienast G. Schwamborn |
author_facet |
A. A. Andreev E. Morozova G. Fedorov L. Schirrmeister A. A. Bobrov F. Kienast G. Schwamborn |
author_sort |
A. A. Andreev |
title |
Vegetation history of central Chukotka deduced from permafrost paleoenvironmental records of the El'gygytgyn Impact Crater |
title_short |
Vegetation history of central Chukotka deduced from permafrost paleoenvironmental records of the El'gygytgyn Impact Crater |
title_full |
Vegetation history of central Chukotka deduced from permafrost paleoenvironmental records of the El'gygytgyn Impact Crater |
title_fullStr |
Vegetation history of central Chukotka deduced from permafrost paleoenvironmental records of the El'gygytgyn Impact Crater |
title_full_unstemmed |
Vegetation history of central Chukotka deduced from permafrost paleoenvironmental records of the El'gygytgyn Impact Crater |
title_sort |
vegetation history of central chukotka deduced from permafrost paleoenvironmental records of the el'gygytgyn impact crater |
publisher |
Copernicus Publications |
publishDate |
2012 |
url |
https://doi.org/10.5194/cp-8-1287-2012 https://doaj.org/article/63b28fcd958b408e8f9f50d1228c2c95 |
long_lat |
ENVELOPE(-60.667,-60.667,-62.983,-62.983) |
geographic |
Crater Lake |
geographic_facet |
Crater Lake |
genre |
Chukotka Dwarf birch permafrost Tundra |
genre_facet |
Chukotka Dwarf birch permafrost Tundra |
op_source |
Climate of the Past, Vol 8, Iss 4, Pp 1287-1300 (2012) |
op_relation |
http://www.clim-past.net/8/1287/2012/cp-8-1287-2012.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 doi:10.5194/cp-8-1287-2012 1814-9324 1814-9332 https://doaj.org/article/63b28fcd958b408e8f9f50d1228c2c95 |
op_doi |
https://doi.org/10.5194/cp-8-1287-2012 |
container_title |
Climate of the Past |
container_volume |
8 |
container_issue |
4 |
container_start_page |
1287 |
op_container_end_page |
1300 |
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1766390100410761216 |