干旱区生态环境知识资源中心(Arid): Late Quaternary environmental change record in biomarker lipid compositions of Lake Ebinur sediments, Northwestern China

Arid

DOI	10.1007/s00531-019-01767-x
	Late Quaternary environmental change record in biomarker lipid compositions of Lake Ebinur sediments, Northwestern China
	Zhou, Jianchao 1,3; Wu, Jinglu 1,2; Ma, Long 2; Abuduwaili, Jilili 2
通讯作者	Wu, Jinglu
来源期刊	INTERNATIONAL JOURNAL OF EARTH SCIENCES
ISSN	1437-3254
EISSN	1437-3262
出版年	2019
卷号	108 期号:7 页码:2361-2371
英文摘要	Late Quaternary paleoclimate records from arid regions help us understand the response of ecological systems to natural climate change to place recent changes in a longer-term perspective. In this research, a biogeochemical analysis of a sediment core from Lake Ebinur, Xinjiang, allowed us to infer the climate and environmental changes in the late Quaternary in arid northwestern China. The combined lipid biomarkers and bulk biogeochemical properties (TOC, delta C-13(org)) revealed moderately wet conditions from 34 to 28 ka, favoring the growth of terrestrial vegetation. The subsequent period from 28 to 13 ka was dominated by aquatic plants, algae and microbes, indicating cold and dry conditions. Ameliorated regional moisture conditions were deduced from the higher carbon preference index (CPI) and from delta C-13(org) values from 13 to 3.6 ka. The optimum climate conditions occurred from 9 to 5 ka. Several climatic events also exist in the Lake Ebinur records with a wide distribution into other regions. Our biogeochemical-based paleoclimate and paleoenvironmental reconstruction is generally synchronous with sedimentary records from mid-latitude Eurasia and the NGRIP ice core record, which probably has a certain linkage with the 45 degrees N summer insolation. We propose that summer insolation conditions in the northern hemisphere might have an impact on the climate and environmental changes in arid northwestern China in the late Quaternary.
英文关键词	Biomarker Climate and environmental change Late Quaternary Lake Ebinur Northwestern China
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000491296500012
WOS关键词	ARID CENTRAL-ASIA ; TIBETAN PLATEAU ; CLIMATE CHANGES ; GRAIN-SIZE ; HOLOCENE CLIMATE ; ALTAI MOUNTAINS ; WESTERN CHINA ; N-ALKANES ; XINJIANG ; MOISTURE
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
EI主题词	2019-10-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310105
作者单位	1.Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Jiangsu, Peoples R China; 2.Chinese Acad Sci, Res Ctr Ecol & Environm Cent Asia, Urumqi 830011, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Jianchao,Wu, Jinglu,Ma, Long,et al. Late Quaternary environmental change record in biomarker lipid compositions of Lake Ebinur sediments, Northwestern China[J],2019,108(7):2361-2371.
APA	Zhou, Jianchao,Wu, Jinglu,Ma, Long,&Abuduwaili, Jilili.(2019).Late Quaternary environmental change record in biomarker lipid compositions of Lake Ebinur sediments, Northwestern China.INTERNATIONAL JOURNAL OF EARTH SCIENCES,108(7),2361-2371.
MLA	Zhou, Jianchao,et al."Late Quaternary environmental change record in biomarker lipid compositions of Lake Ebinur sediments, Northwestern China".INTERNATIONAL JOURNAL OF EARTH SCIENCES 108.7(2019):2361-2371.