Pollen abundance in sediment core BY10A, Swan Lake
High mountains are humid islands in arid central Asia, and alpine vegetation is sensitive to climate change, especially to temperature variations. Here we present a palynological sequence and discuss the past vegetation and climate changes based on core BY10A from the Swan Lake, an alpine lake situa...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.884462 2023-05-15T16:39:27+02:00 Pollen abundance in sediment core BY10A, Swan Lake Huang, Xiao-zhong Chen, Chunzhu Jia, Wan-na An, Cheng-bang Zhou, Ai-feng Zhang, Jia-wu Jin, Ming Xia, Dun-sheng Chen, Fahu Grimm, Eric C LATITUDE: 43.045830 * LONGITUDE: 84.381940 * MINIMUM DEPTH, sediment/rock: 0.013 m * MAXIMUM DEPTH, sediment/rock: 1.942 m 2017-12-28 text/tab-separated-values, 1813 data points https://doi.pangaea.de/10.1594/PANGAEA.884462 https://doi.org/10.1594/PANGAEA.884462 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.884462 https://doi.org/10.1594/PANGAEA.884462 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Huang, Xiao-zhong; Chen, Chunzhu; Jia, Wan-na; An, Cheng-bang; Zhou, Ai-feng; Zhang, Jia-wu; Jin, Ming; Xia, Dun-sheng; Chen, Fahu; Grimm, Eric C (2015): Vegetation and climate history reconstructed from an alpine lake in central Tienshan Mountains since 8.5ka BP. Palaeogeography, Palaeoclimatology, Palaeoecology, 432, 36-48, https://doi.org/10.1016/j.palaeo.2015.04.027 AGE Artemisia Betula BY10A Caryophyllaceae Celastraceae Central Tienshan Mountains northwestern China Cereal-type Chenopodiaceae Compositae Cruciferae Cyperaceae DEPTH sediment/rock Elaeagnaceae Ephedra Euphorbiaceae Gentianaceae Geraniaceae Hamamelidaceae Humulus Iris Juglandaceae Labiatae Leguminosae Malvaceae Nitraria Onagraceae PCUWI Picea Pinus Piston corer UWITEC Plantago Poaceae Pollen total Polygonaceae Primulaceae Ranunculaceae Rosaceae Rubiaceae Salix Swan Lake Thalictrum Ulmus Umbelliferae Dataset 2017 ftpangaea https://doi.org/10.1594/PANGAEA.884462 https://doi.org/10.1016/j.palaeo.2015.04.027 2023-01-20T09:10:06Z High mountains are humid islands in arid central Asia, and alpine vegetation is sensitive to climate change, especially to temperature variations. Here we present a palynological sequence and discuss the past vegetation and climate changes based on core BY10A from the Swan Lake, an alpine lake situated at an inter-montane basin in the central Tienshan Mountains, Xinjiang, northwestern China. We collected 52 modern pollen surface samples at different elevations to aid in the interpretation of fossil-pollen data, which provide a reconstruction of vegetation and climate history for the last 8.5 ka (1 ka = 1000 cal yr BP). Artemisia and Amaranthaceae (= Chenopodiaceae) are the main pollen types in desert steppe zone below 1800 m elevation, while Poaceae and Picea dominate the mid-elevation forest steppe zone (1800-2800 m). Cyperaceae is the main indicator of high alpine meadows (> 2800 m). From 8.5 to 6.9 ka, the vegetation was steppe meadow suggesting relatively warm climate. From 6.9 to 2.6 ka generally high values of Cyperaceae and peaty sediments indicate a fen environment and cooler, more humid conditions. Interrupting this mid-Holocene period is a 5.5-4.5 ka millennium of lacustrine sediments with lower Cyperaceae, higher Poaceae and Artemisia, and high values of Myriophyllum and Pediastrum indicating higher water levels and warmer temperatures. After 2.6 ka, pollen data indicate alpine steppe and warmer climate. The mid-Holocene pattern of cooler climate interrupted by a warmer period is consistent from other regional records from Xinjiang, including the Guliya ice core and Kesang Cave speleothem record. During the cooler periods, the regional record indicates that a weakened summer Asian monsoon is countered to some extent by a stronger winter monsoon. Dataset ice core PANGAEA - Data Publisher for Earth & Environmental Science Alpine Lake ENVELOPE(-129.182,-129.182,55.529,55.529) ENVELOPE(84.381940,84.381940,43.045830,43.045830) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AGE Artemisia Betula BY10A Caryophyllaceae Celastraceae Central Tienshan Mountains northwestern China Cereal-type Chenopodiaceae Compositae Cruciferae Cyperaceae DEPTH sediment/rock Elaeagnaceae Ephedra Euphorbiaceae Gentianaceae Geraniaceae Hamamelidaceae Humulus Iris Juglandaceae Labiatae Leguminosae Malvaceae Nitraria Onagraceae PCUWI Picea Pinus Piston corer UWITEC Plantago Poaceae Pollen total Polygonaceae Primulaceae Ranunculaceae Rosaceae Rubiaceae Salix Swan Lake Thalictrum Ulmus Umbelliferae |
spellingShingle |
AGE Artemisia Betula BY10A Caryophyllaceae Celastraceae Central Tienshan Mountains northwestern China Cereal-type Chenopodiaceae Compositae Cruciferae Cyperaceae DEPTH sediment/rock Elaeagnaceae Ephedra Euphorbiaceae Gentianaceae Geraniaceae Hamamelidaceae Humulus Iris Juglandaceae Labiatae Leguminosae Malvaceae Nitraria Onagraceae PCUWI Picea Pinus Piston corer UWITEC Plantago Poaceae Pollen total Polygonaceae Primulaceae Ranunculaceae Rosaceae Rubiaceae Salix Swan Lake Thalictrum Ulmus Umbelliferae Huang, Xiao-zhong Chen, Chunzhu Jia, Wan-na An, Cheng-bang Zhou, Ai-feng Zhang, Jia-wu Jin, Ming Xia, Dun-sheng Chen, Fahu Grimm, Eric C Pollen abundance in sediment core BY10A, Swan Lake |
topic_facet |
AGE Artemisia Betula BY10A Caryophyllaceae Celastraceae Central Tienshan Mountains northwestern China Cereal-type Chenopodiaceae Compositae Cruciferae Cyperaceae DEPTH sediment/rock Elaeagnaceae Ephedra Euphorbiaceae Gentianaceae Geraniaceae Hamamelidaceae Humulus Iris Juglandaceae Labiatae Leguminosae Malvaceae Nitraria Onagraceae PCUWI Picea Pinus Piston corer UWITEC Plantago Poaceae Pollen total Polygonaceae Primulaceae Ranunculaceae Rosaceae Rubiaceae Salix Swan Lake Thalictrum Ulmus Umbelliferae |
description |
High mountains are humid islands in arid central Asia, and alpine vegetation is sensitive to climate change, especially to temperature variations. Here we present a palynological sequence and discuss the past vegetation and climate changes based on core BY10A from the Swan Lake, an alpine lake situated at an inter-montane basin in the central Tienshan Mountains, Xinjiang, northwestern China. We collected 52 modern pollen surface samples at different elevations to aid in the interpretation of fossil-pollen data, which provide a reconstruction of vegetation and climate history for the last 8.5 ka (1 ka = 1000 cal yr BP). Artemisia and Amaranthaceae (= Chenopodiaceae) are the main pollen types in desert steppe zone below 1800 m elevation, while Poaceae and Picea dominate the mid-elevation forest steppe zone (1800-2800 m). Cyperaceae is the main indicator of high alpine meadows (> 2800 m). From 8.5 to 6.9 ka, the vegetation was steppe meadow suggesting relatively warm climate. From 6.9 to 2.6 ka generally high values of Cyperaceae and peaty sediments indicate a fen environment and cooler, more humid conditions. Interrupting this mid-Holocene period is a 5.5-4.5 ka millennium of lacustrine sediments with lower Cyperaceae, higher Poaceae and Artemisia, and high values of Myriophyllum and Pediastrum indicating higher water levels and warmer temperatures. After 2.6 ka, pollen data indicate alpine steppe and warmer climate. The mid-Holocene pattern of cooler climate interrupted by a warmer period is consistent from other regional records from Xinjiang, including the Guliya ice core and Kesang Cave speleothem record. During the cooler periods, the regional record indicates that a weakened summer Asian monsoon is countered to some extent by a stronger winter monsoon. |
format |
Dataset |
author |
Huang, Xiao-zhong Chen, Chunzhu Jia, Wan-na An, Cheng-bang Zhou, Ai-feng Zhang, Jia-wu Jin, Ming Xia, Dun-sheng Chen, Fahu Grimm, Eric C |
author_facet |
Huang, Xiao-zhong Chen, Chunzhu Jia, Wan-na An, Cheng-bang Zhou, Ai-feng Zhang, Jia-wu Jin, Ming Xia, Dun-sheng Chen, Fahu Grimm, Eric C |
author_sort |
Huang, Xiao-zhong |
title |
Pollen abundance in sediment core BY10A, Swan Lake |
title_short |
Pollen abundance in sediment core BY10A, Swan Lake |
title_full |
Pollen abundance in sediment core BY10A, Swan Lake |
title_fullStr |
Pollen abundance in sediment core BY10A, Swan Lake |
title_full_unstemmed |
Pollen abundance in sediment core BY10A, Swan Lake |
title_sort |
pollen abundance in sediment core by10a, swan lake |
publisher |
PANGAEA |
publishDate |
2017 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.884462 https://doi.org/10.1594/PANGAEA.884462 |
op_coverage |
LATITUDE: 43.045830 * LONGITUDE: 84.381940 * MINIMUM DEPTH, sediment/rock: 0.013 m * MAXIMUM DEPTH, sediment/rock: 1.942 m |
long_lat |
ENVELOPE(-129.182,-129.182,55.529,55.529) ENVELOPE(84.381940,84.381940,43.045830,43.045830) |
geographic |
Alpine Lake |
geographic_facet |
Alpine Lake |
genre |
ice core |
genre_facet |
ice core |
op_source |
Supplement to: Huang, Xiao-zhong; Chen, Chunzhu; Jia, Wan-na; An, Cheng-bang; Zhou, Ai-feng; Zhang, Jia-wu; Jin, Ming; Xia, Dun-sheng; Chen, Fahu; Grimm, Eric C (2015): Vegetation and climate history reconstructed from an alpine lake in central Tienshan Mountains since 8.5ka BP. Palaeogeography, Palaeoclimatology, Palaeoecology, 432, 36-48, https://doi.org/10.1016/j.palaeo.2015.04.027 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.884462 https://doi.org/10.1594/PANGAEA.884462 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.884462 https://doi.org/10.1016/j.palaeo.2015.04.027 |
_version_ |
1766029806857617408 |