Arid
DOI10.1016/j.quaint.2016.11.024
Palynological implications for Late Glacial to middle Holocene vegetation and environmental history of the Lop Nur Xinjiang Uygur Autonomous Region, northwestern China
Jia, Hongjuan1; Wang, Jingzhong1; Qin, Xiaoguang2; Yi, Sangheon3,4
通讯作者Jia, Hongjuan ; Yi, Sangheon
来源期刊QUATERNARY INTERNATIONAL
ISSN1040-6182
EISSN1873-4553
出版年2017
卷号436页码:162-169
英文摘要

Lop Nur is located in the northeastern area of the Tarim Basin, in the Xinjiang Uygur Autonomous Region, northwestern China. A 210-cm-deep trench section was collected from the center of the lake. Five accelerator mass spectrometry (AMS) C-14 dating results indicate that the studied section encompasses the late Glacial to middle Holocene periods (12.8-5.5 cal ka BP). Vegetation and environmental changes in the Lop Nur region can be divided into three stages and six sub-stages, based on significant changes in the pollen assemblages. Dry conditions and desert steppe or steppe vegetation dominated this region from 12.8 to 11.4 cal ka BP. The climate became warmer and wetter at the beginning of the Holocene, and steppe vegetation replaced the previous flora. Steppe vegetation continued to dominate until the middle Holocene (8.7-6.7 cal ka BP), which had the wettest moisture conditions. Increased winter temperatures from 6.7 to 5.5 cal ka BP triggered more evaporation, causing shrinkage of the lowland wetlands. Climate events such as the Allerod oscillation, the Younger Dryas, and events at 9.4 cal ka BP, 8.4cal ka BP, 7.5 cal ka BP, and 7.0 cal ka BP, were recognized in the Lop Nur section. The evidence indicates that climate oscillations in the Lop Nur area were influenced and controlled by changes in global climate. (C) 2016 Elsevier Ltd and INQUA. All rights reserved.


英文关键词Arid China Environmental change Holocene Late Glacial Lop Nur Pollen
类型Article
语种英语
国家Peoples R China ; South Korea
收录类别SCI-E
WOS记录号WOS:000399257200014
WOS关键词SEA-LEVEL RISE ; ARID CENTRAL-ASIA ; NORTHERN XINJIANG ; LATE PLEISTOCENE ; LACUSTRINE RECORD ; INNER-MONGOLIA ; LAKE ; POLLEN ; CLIMATE ; MONSOON
WOS类目Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向Physical Geography ; Geology
来源机构中国科学院地质与地球物理研究所
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/201797
作者单位1.HeBei GEO Univ, Expt & Practice Teaching Ctr, Shijiazhuang 05003, Peoples R China;
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China;
3.Korea Inst Geosci & Mineral Resources, Geol Environm Div, Daejeon 34132, South Korea;
4.Korea Univ Sci & Technol UST, Dept Petr Resource Technol, Daejeon 34113, South Korea
推荐引用方式
GB/T 7714
Jia, Hongjuan,Wang, Jingzhong,Qin, Xiaoguang,et al. Palynological implications for Late Glacial to middle Holocene vegetation and environmental history of the Lop Nur Xinjiang Uygur Autonomous Region, northwestern China[J]. 中国科学院地质与地球物理研究所,2017,436:162-169.
APA Jia, Hongjuan,Wang, Jingzhong,Qin, Xiaoguang,&Yi, Sangheon.(2017).Palynological implications for Late Glacial to middle Holocene vegetation and environmental history of the Lop Nur Xinjiang Uygur Autonomous Region, northwestern China.QUATERNARY INTERNATIONAL,436,162-169.
MLA Jia, Hongjuan,et al."Palynological implications for Late Glacial to middle Holocene vegetation and environmental history of the Lop Nur Xinjiang Uygur Autonomous Region, northwestern China".QUATERNARY INTERNATIONAL 436(2017):162-169.
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