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题名: Dry late-glacial and early Holocene climate in arid central Asia indicated by lithological and palynological evidence from Bosten Lake, China
作者: Huang, XZ; Chen, FH(陈发虎); Fan, YX; Yang, ML
收录类别: SCIE ; CPCI-S
出版日期: 2009-02-01
会议名称: RACHAD Workshop on Pattern of Holocene Change in Central Asia
会议日期: JUL 25-27, 2006
会议地点: Lanzhou, PEOPLES R CHINA
英文摘要: Stratigraphical and chronological investigations of four sediment cores from Bosten Lake, the largest inland freshwater lake in China, provide a reliable regional environmental evolution record since the late-glacial. The stratigraphy of the four cores has been well correlated according to their lithology and chronology (OSL and (14)C dates). Pollen and grain size data from Bosten Lake show evidence for a dry regional climate during late-glacial and early Holocene (16-8 calka BP) indicated by a thick layer of aeolian sand deposit (> 100 cm). Although the climate became humid after 8 cat ka BP, analysis of pollen assemblages (pollen A/C ratio and Ephedra percentage) also indicates that the climate was relatively dry in the Bosten Lake area between 8 and 6 cat ka BP, while afterwards more humid conditions (ca 6-1.5 cat ka BP) are assumed. Comparison with other lake records from arid central Asia influenced by the westerly winds generally supports the assumption of late-glacial to early Holocene dry climates in westerly dominated regions. Hence, they contrast the Holocene climate development in monsoon Asia. Relatively wet conditions during the late Holocene (6-1.5 cat ka BP) might be induced by stronger westerly circulation. (C) 2007 Elsevier Ltd and INQUA. All rights reserved.
作者部门: [Huang, X. Z. ; Chen, F. H. ; Fan, Y. X. ; Yang, M. L.] Lanzhou Univ, Minist Educ, CAEP, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China
通讯作者: Huang, XZ (reprint author), Lanzhou Univ, Minist Educ, CAEP, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China.
学科分类: Physical Geography; Geology
会议主办者: Lanzhou Univ
会议录: QUATERNARY INTERNATIONAL
卷号: 194
页码: 19-27
出版者: ELSEVIER
出版地: OXFORD
语种: 英语
DOI: 10.1016/j.quaint.2007.10.002
ISSN号: 1040-6182
WOS记录号: WOS:000262958700003
IR记录号: WOS:000262958700003
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内容类型: 会议论文
URI标识: http://ir.lzu.edu.cn/handle/262010/184664
Appears in Collections:资源环境学院_会议论文

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Recommended Citation:
Huang, XZ,Chen, FH,Fan, YX,et al. Dry late-glacial and early Holocene climate in arid central Asia indicated by lithological and palynological evidence from Bosten Lake, China[C]. 见:RACHAD Workshop on Pattern of Holocene Change in Central Asia. Lanzhou, PEOPLES R CHINA. JUL 25-27, 2006.
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