Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.quascirev.2014.10.016 |
Late Quaternary vegetation of Chukotka (Northeast Russia), implications for Glacial and Holocene environments of Beringia | |
Anderson, Patricia M.1; Lozhkin, Anatoly V.2 | |
通讯作者 | Anderson, Patricia M. |
来源期刊 | QUATERNARY SCIENCE REVIEWS
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ISSN | 0277-3791 |
出版年 | 2015 |
卷号 | 107页码:112-128 |
英文摘要 | Two lake records from the Kankaren region of southern Chukotka, when combined with other palynological and macrofossil data, document spatial and temporal variations in the regional vegetation history since similar to 21,000 C-14/25,400 cal yr BP. Full-glacial environments were severely cold and arid in central and northern Chukotka, whereas southern sites experienced conditions that were relatively moist, although still drier than present. Southern Chukotka may represent a western extension of environments of the land bridge proper, including a possible "moisture" barrier to intercontinental migration. Shrub Betula tundra established earliest in southern Chukotka (similar to 15,800-14,000 C-14/19,000-16,700 cal yr BP; similar to 13,000 C-14/15,300 cal yr BP central and north), Pinus pumila earliest in the north (similar to 9600 C-14/11,100 cal yr BP; similar to 7600 C-14/8400 cal yr BP south), and shrub Alnus earliest in both the south and north (similar to 12,000-11,000 C-14/13,800-12,900 cal yr BP). These patterns support the presence of cryptic refugia for Betula and Alnus in Chukotka during the full glaciation. In contrast, P. pumila probably migrated into Chukotka from populations located in the northern coastal lowlands and from mountainous regions of southwestern Beringia. Evidence for a thermal optimum (similar to 11,000-8000 C-14/12,900-9000 cal yr BP) is strong in northern Chukotka but is absent in central and southern areas. (C) 2014 Elsevier Ltd. All rights reserved. |
英文关键词 | Beringia Chukotka Postglacial thermal maximum Vegetation history Pollen Plant macrofossils |
类型 | Article |
语种 | 英语 |
国家 | USA ; Russia |
收录类别 | SCI-E |
WOS记录号 | WOS:000347586100008 |
WOS关键词 | LATE PLEISTOCENE ; LAND-BRIDGE ; POLLEN DATA ; LAKE-SEDIMENTS ; CENTRAL ALASKA ; CHUKCHI SEA ; NE RUSSIA ; CLIMATE ; MAXIMUM ; HISTORY |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
WOS研究方向 | Physical Geography ; Geology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/190070 |
作者单位 | 1.Univ Washington, Quaternary Res Ctr, Seattle, WA 98195 USA; 2.Russian Acad Sci, Northeast Interdisciplinary Sci Res Inst, Far East Branch, Magadan 685000, Russia |
推荐引用方式 GB/T 7714 | Anderson, Patricia M.,Lozhkin, Anatoly V.. Late Quaternary vegetation of Chukotka (Northeast Russia), implications for Glacial and Holocene environments of Beringia[J],2015,107:112-128. |
APA | Anderson, Patricia M.,&Lozhkin, Anatoly V..(2015).Late Quaternary vegetation of Chukotka (Northeast Russia), implications for Glacial and Holocene environments of Beringia.QUATERNARY SCIENCE REVIEWS,107,112-128. |
MLA | Anderson, Patricia M.,et al."Late Quaternary vegetation of Chukotka (Northeast Russia), implications for Glacial and Holocene environments of Beringia".QUATERNARY SCIENCE REVIEWS 107(2015):112-128. |
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