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Climatic and environmental implications from n-alkanes in glacially eroded lake sediments in Tibetan Plateau: An example from Ximen Co

文献类型：期刊论文

作者Pu Yang2; Zhang HuCai1; Wang YongLi3; Lei GuoLiang1; Nace, Trevor4; Zhang ShuPing1
刊名CHINESE SCIENCE BULLETIN
出版日期2011-05-01
卷号56期号:14页码:1503-1510
关键词Tibetan Plateau glacially eroded lake Ximen Co lake sediment molecular fossil n-alkane climatic and environmental change
ISSN号1001-6538
DOI10.1007/s11434-011-4454-7
文献子类Article
英文摘要Gas chromatography-mass spectrometry was used to identify a series of n-alkanes in the sediments of a typical glacially eroded lake in the eastern Tibetan Plateau. By comparing the distribution patterns of n-alkanes in lake sediments, surface soils and cow manure, it was shown that n-C(27)-n-C(33) alkanes in the soil ecosystem of Ximen Co are derived from vascular plant species and that the distribution pattern of n-C(27)-n-C(33) alkanes remains unchanged during the feeding and digestion processes of herbivores. The relative percentage of C(27), C(29) and C(31) n-alkanes decreased from the bottom to the top of the sediment core showing a trend of degradation of higher plants in the Ximen Co lake region during the formation of the 44 cm core. (210)Pb dating, combined with pre-existing AMS (14)C dating results showed that the depositional core reflects climatic and environmental variations since about 900 years before present. The n-alkane indexes (ACL(27-33), P (aq), P (wax)) are comparable with regional temperature variation, especially recording the Little Ice Age event (LIA). This study highlights that n-alkanes are valid proxies for paleo-climate and paleo-environment reconstruction, despite the same distribution patterns in n-alkane molecular fossils derived from a typical glacially eroded lake.
WOS关键词SPATIAL-DISTRIBUTION ; LIPID BIOMARKERS ; EASTERN TIBET ; QAIDAM BASIN ; NAM-CO ; CHINA ; EVOLUTION ; RECORDS ; POLLEN ; RECONSTRUCTION
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000290274400014
出版者SCIENCE CHINA PRESS
资助机构National Natural Science Foundation of China(40871096) ; National Natural Science Foundation of China(40871096) ; Nanjing Institute of Geography and Limnology, CAS(NIGLAS2010XK01) ; Nanjing Institute of Geography and Limnology, CAS(NIGLAS2010XK01) ; National Natural Science Foundation of China(40871096) ; National Natural Science Foundation of China(40871096) ; Nanjing Institute of Geography and Limnology, CAS(NIGLAS2010XK01) ; Nanjing Institute of Geography and Limnology, CAS(NIGLAS2010XK01) ; National Natural Science Foundation of China(40871096) ; National Natural Science Foundation of China(40871096) ; Nanjing Institute of Geography and Limnology, CAS(NIGLAS2010XK01) ; Nanjing Institute of Geography and Limnology, CAS(NIGLAS2010XK01) ; National Natural Science Foundation of China(40871096) ; National Natural Science Foundation of China(40871096) ; Nanjing Institute of Geography and Limnology, CAS(NIGLAS2010XK01) ; Nanjing Institute of Geography and Limnology, CAS(NIGLAS2010XK01)
源URL[http://ir.iggcas.ac.cn/handle/132A11/74572]  
专题中国科学院地质与地球物理研究所
通讯作者Zhang HuCai
作者单位1.Chinese Acad Sci, State Key Lab Lake Sci & Environm, Nanjing Inst Geog & Limnol, Nanjing 210008, Peoples R China
2.Nanjing Univ Informat Sci & Technol, Sch Remote Sensing, Nanjing 210044, Peoples R China
3.Chinese Acad Sci, Key Lab Petr Resources Res, Inst Geol & Geophys, Lanzhou 730000, Peoples R China
4.Duke Univ, Div Earth & Ocean Sci, Durham, NC 27708 USA
推荐引用方式
GB/T 7714		 Pu Yang,Zhang HuCai,Wang YongLi,et al. Climatic and environmental implications from n-alkanes in glacially eroded lake sediments in Tibetan Plateau: An example from Ximen Co[J]. CHINESE SCIENCE BULLETIN,2011,56(14):1503-1510.
APA Pu Yang,Zhang HuCai,Wang YongLi,Lei GuoLiang,Nace, Trevor,&Zhang ShuPing.(2011).Climatic and environmental implications from n-alkanes in glacially eroded lake sediments in Tibetan Plateau: An example from Ximen Co.CHINESE SCIENCE BULLETIN,56(14),1503-1510.
MLA Pu Yang,et al."Climatic and environmental implications from n-alkanes in glacially eroded lake sediments in Tibetan Plateau: An example from Ximen Co".CHINESE SCIENCE BULLETIN 56.14(2011):1503-1510.

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来源：地质与地球物理研究所

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