Plant macrofossil records from permafrost deposits of the Bol'shoy Lyakhovsky Island (New Siberian Archipelago)
To evaluate the consequences of possible future climate changes and to identify the main climate drivers in high latitudes, the vegetation and climate in the East Siberian Arctic during the last interglacial are reconstructed and compared with Holocene conditions. Plant macrofossils from permafrost...
Main Authors: | , |
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Format: | Dataset |
Language: | English |
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PANGAEA
2017
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.882619 https://doi.org/10.1594/PANGAEA.882619 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.882619 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Agrostis sp. Alnus fruticosa Alopecurus sp. Alyssum biovulatum Androsace septentrionalis Area/locality Artemisia sp. Asteraceae sp. AWI_PerDyn AWI Arctic Land Expedition Batrachium sp. Betulaceae Betula fruticosa Betula nana Betula sp. Boschniakia rossica Brassicaceae indeterminata Calamagrostis sp. Callitriche hermaphroditica Caltha palustris Carex aquatilis Carex cf. sect. Temnemis Carex duriuscula Carex sect. Phacocystis Carex sp. Carex supina Caryophyllaceae indeterminata Cerastium beeringianum Cerastium cf. regelii Cerastium jenissejense cf. Corydalis sp. cf. Lesquerella arctica cf. Saxifraga hieracifolia Chara sp. Chenopodiaceae indeterminata Chenopodium sp. Chrysosplenium alternifolium Comarum palustre Cyperaceae indeterminata Deschampsia sp. Descurainia sophioides Draba sp. Dryas octopetala ELEVATION Empetrum nigrum Epilobium davuricum Epilobium palustre Eriophorum angustifolium Eriophorum brachyantherum Eriophorum cf. gracile |
spellingShingle |
Agrostis sp. Alnus fruticosa Alopecurus sp. Alyssum biovulatum Androsace septentrionalis Area/locality Artemisia sp. Asteraceae sp. AWI_PerDyn AWI Arctic Land Expedition Batrachium sp. Betulaceae Betula fruticosa Betula nana Betula sp. Boschniakia rossica Brassicaceae indeterminata Calamagrostis sp. Callitriche hermaphroditica Caltha palustris Carex aquatilis Carex cf. sect. Temnemis Carex duriuscula Carex sect. Phacocystis Carex sp. Carex supina Caryophyllaceae indeterminata Cerastium beeringianum Cerastium cf. regelii Cerastium jenissejense cf. Corydalis sp. cf. Lesquerella arctica cf. Saxifraga hieracifolia Chara sp. Chenopodiaceae indeterminata Chenopodium sp. Chrysosplenium alternifolium Comarum palustre Cyperaceae indeterminata Deschampsia sp. Descurainia sophioides Draba sp. Dryas octopetala ELEVATION Empetrum nigrum Epilobium davuricum Epilobium palustre Eriophorum angustifolium Eriophorum brachyantherum Eriophorum cf. gracile Kienast, Frank Schirrmeister, Lutz Plant macrofossil records from permafrost deposits of the Bol'shoy Lyakhovsky Island (New Siberian Archipelago) |
topic_facet |
Agrostis sp. Alnus fruticosa Alopecurus sp. Alyssum biovulatum Androsace septentrionalis Area/locality Artemisia sp. Asteraceae sp. AWI_PerDyn AWI Arctic Land Expedition Batrachium sp. Betulaceae Betula fruticosa Betula nana Betula sp. Boschniakia rossica Brassicaceae indeterminata Calamagrostis sp. Callitriche hermaphroditica Caltha palustris Carex aquatilis Carex cf. sect. Temnemis Carex duriuscula Carex sect. Phacocystis Carex sp. Carex supina Caryophyllaceae indeterminata Cerastium beeringianum Cerastium cf. regelii Cerastium jenissejense cf. Corydalis sp. cf. Lesquerella arctica cf. Saxifraga hieracifolia Chara sp. Chenopodiaceae indeterminata Chenopodium sp. Chrysosplenium alternifolium Comarum palustre Cyperaceae indeterminata Deschampsia sp. Descurainia sophioides Draba sp. Dryas octopetala ELEVATION Empetrum nigrum Epilobium davuricum Epilobium palustre Eriophorum angustifolium Eriophorum brachyantherum Eriophorum cf. gracile |
description |
To evaluate the consequences of possible future climate changes and to identify the main climate drivers in high latitudes, the vegetation and climate in the East Siberian Arctic during the last interglacial are reconstructed and compared with Holocene conditions. Plant macrofossils from permafrost deposits on Bol'shoy Lyakhovsky Island, New Siberian Archipelago, in the Russian Arctic revealed the existence of a shrubland dominated by Duschekia fruticosa, Betula nana and Ledum palustre and interspersed with lakes and grasslands during the last interglacial. The reconstructed vegetation differs fundamentally from the high arctic tundra that exists in this region today, but resembles an open variant of subarctic shrub tundra as occurring near the tree line about 350 km southwest of the study site. Such difference in the plant cover implies that, during the last interglacial, the mean summer temperature was considerably higher, the growing season was longer, and soils outside the range of thermokarst depressions were drier than today. Our pollen-based climatic reconstruction suggests a mean temperature of the warmest month (MTWA) range of 9-14.5 °C during the warmest interval of the last interglacial. The reconstruction from plant macrofossils, representing more local environments, reached MTWA values above 12.5 °C in contrast to today's 2.8 °C. We explain this contrast in summer temperature and soil moisture with a combination of summer insolation higher than present and climatic continentality in arctic Yakutia stronger than present as result of a considerably less inundated Laptev Shelf during the last interglacial. |
format |
Dataset |
author |
Kienast, Frank Schirrmeister, Lutz |
author_facet |
Kienast, Frank Schirrmeister, Lutz |
author_sort |
Kienast, Frank |
title |
Plant macrofossil records from permafrost deposits of the Bol'shoy Lyakhovsky Island (New Siberian Archipelago) |
title_short |
Plant macrofossil records from permafrost deposits of the Bol'shoy Lyakhovsky Island (New Siberian Archipelago) |
title_full |
Plant macrofossil records from permafrost deposits of the Bol'shoy Lyakhovsky Island (New Siberian Archipelago) |
title_fullStr |
Plant macrofossil records from permafrost deposits of the Bol'shoy Lyakhovsky Island (New Siberian Archipelago) |
title_full_unstemmed |
Plant macrofossil records from permafrost deposits of the Bol'shoy Lyakhovsky Island (New Siberian Archipelago) |
title_sort |
plant macrofossil records from permafrost deposits of the bol'shoy lyakhovsky island (new siberian archipelago) |
publisher |
PANGAEA |
publishDate |
2017 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.882619 https://doi.org/10.1594/PANGAEA.882619 |
op_coverage |
MEDIAN LATITUDE: 73.334917 * MEDIAN LONGITUDE: 141.321450 * SOUTH-BOUND LATITUDE: 73.323000 * WEST-BOUND LONGITUDE: 141.263000 * NORTH-BOUND LATITUDE: 73.346000 * EAST-BOUND LONGITUDE: 141.387000 * MINIMUM ELEVATION: 1.00 m a.s.l. * MAXIMUM ELEVATION: 6.85 m a.s.l. |
long_lat |
ENVELOPE(141.263000,141.387000,73.346000,73.323000) |
genre |
Arctic Betula nana Carex aquatilis Dryas octopetala Empetrum nigrum Eriophorum laptev permafrost Saxifraga hieracifolia Subarctic Thermokarst Tundra Yakutia |
genre_facet |
Arctic Betula nana Carex aquatilis Dryas octopetala Empetrum nigrum Eriophorum laptev permafrost Saxifraga hieracifolia Subarctic Thermokarst Tundra Yakutia |
op_source |
Supplement to: Kienast, Frank; Tarasov, Pavel E; Schirrmeister, Lutz; Grosse, Guido; Andreev, Andrei A (2008): Continental climate in the East Siberian Arctic during the last interglacial: Implications from palaeobotanical records. Global and Planetary Change, 60(3-4), 535-562, https://doi.org/10.1016/j.gloplacha.2007.07.004 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.882619 https://doi.org/10.1594/PANGAEA.882619 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.88261910.1016/j.gloplacha.2007.07.004 |
_version_ |
1810292712706932736 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.882619 2024-09-15T17:50:55+00:00 Plant macrofossil records from permafrost deposits of the Bol'shoy Lyakhovsky Island (New Siberian Archipelago) Kienast, Frank Schirrmeister, Lutz MEDIAN LATITUDE: 73.334917 * MEDIAN LONGITUDE: 141.321450 * SOUTH-BOUND LATITUDE: 73.323000 * WEST-BOUND LONGITUDE: 141.263000 * NORTH-BOUND LATITUDE: 73.346000 * EAST-BOUND LONGITUDE: 141.387000 * MINIMUM ELEVATION: 1.00 m a.s.l. * MAXIMUM ELEVATION: 6.85 m a.s.l. 2017 text/tab-separated-values, 2160 data points https://doi.pangaea.de/10.1594/PANGAEA.882619 https://doi.org/10.1594/PANGAEA.882619 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.882619 https://doi.org/10.1594/PANGAEA.882619 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Kienast, Frank; Tarasov, Pavel E; Schirrmeister, Lutz; Grosse, Guido; Andreev, Andrei A (2008): Continental climate in the East Siberian Arctic during the last interglacial: Implications from palaeobotanical records. Global and Planetary Change, 60(3-4), 535-562, https://doi.org/10.1016/j.gloplacha.2007.07.004 Agrostis sp. Alnus fruticosa Alopecurus sp. Alyssum biovulatum Androsace septentrionalis Area/locality Artemisia sp. Asteraceae sp. AWI_PerDyn AWI Arctic Land Expedition Batrachium sp. Betulaceae Betula fruticosa Betula nana Betula sp. Boschniakia rossica Brassicaceae indeterminata Calamagrostis sp. Callitriche hermaphroditica Caltha palustris Carex aquatilis Carex cf. sect. Temnemis Carex duriuscula Carex sect. Phacocystis Carex sp. Carex supina Caryophyllaceae indeterminata Cerastium beeringianum Cerastium cf. regelii Cerastium jenissejense cf. Corydalis sp. cf. Lesquerella arctica cf. Saxifraga hieracifolia Chara sp. Chenopodiaceae indeterminata Chenopodium sp. Chrysosplenium alternifolium Comarum palustre Cyperaceae indeterminata Deschampsia sp. Descurainia sophioides Draba sp. Dryas octopetala ELEVATION Empetrum nigrum Epilobium davuricum Epilobium palustre Eriophorum angustifolium Eriophorum brachyantherum Eriophorum cf. gracile dataset 2017 ftpangaea https://doi.org/10.1594/PANGAEA.88261910.1016/j.gloplacha.2007.07.004 2024-07-24T02:31:33Z To evaluate the consequences of possible future climate changes and to identify the main climate drivers in high latitudes, the vegetation and climate in the East Siberian Arctic during the last interglacial are reconstructed and compared with Holocene conditions. Plant macrofossils from permafrost deposits on Bol'shoy Lyakhovsky Island, New Siberian Archipelago, in the Russian Arctic revealed the existence of a shrubland dominated by Duschekia fruticosa, Betula nana and Ledum palustre and interspersed with lakes and grasslands during the last interglacial. The reconstructed vegetation differs fundamentally from the high arctic tundra that exists in this region today, but resembles an open variant of subarctic shrub tundra as occurring near the tree line about 350 km southwest of the study site. Such difference in the plant cover implies that, during the last interglacial, the mean summer temperature was considerably higher, the growing season was longer, and soils outside the range of thermokarst depressions were drier than today. Our pollen-based climatic reconstruction suggests a mean temperature of the warmest month (MTWA) range of 9-14.5 °C during the warmest interval of the last interglacial. The reconstruction from plant macrofossils, representing more local environments, reached MTWA values above 12.5 °C in contrast to today's 2.8 °C. We explain this contrast in summer temperature and soil moisture with a combination of summer insolation higher than present and climatic continentality in arctic Yakutia stronger than present as result of a considerably less inundated Laptev Shelf during the last interglacial. Dataset Arctic Betula nana Carex aquatilis Dryas octopetala Empetrum nigrum Eriophorum laptev permafrost Saxifraga hieracifolia Subarctic Thermokarst Tundra Yakutia PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(141.263000,141.387000,73.346000,73.323000) |