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  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院新生代地质与环境重点实验室
n-Alkanes and compound carbon isotope records from Lake Yiheshariwusu in the Hulun Buir sandy land, northeastern China

文献类型：期刊论文

作者Xie, Manman2,4,5; Sun, Qing5; Dong, Haowei5; Liu, Siwen5; Shang, Wenyu5; Ling, Yuan6; Zhao, Jiayu1,2,3; Chu, Guoqiang1,2,3
刊名HOLOCENE
出版日期2020-06-16
页码11
ISSN号0959-6836
关键词compound-specific carbon isotope Holocene Hulun Buir sandy land Lake Yiheshariwusu n-alkanes
DOI10.1177/0959683620932968
英文摘要The Hulun Buir sandy land in northern China is located at the northern limit region of the East Asian summer monsoon (EASM) and is therefore sensitive to the extension of the front of the rainfall belt. Here we report ann-alkane and compound-specific carbon isotope record from the Holocene sediments of Lake Yiheshariwusu in the middle of the Hulun Buir sandy land. The sediments contain a suite ofn-alkanes with a strong odd over even carbon number predominance, with the maximum contribution fromnC(31), which is a typical distribution in grassland regions. The low temperatures in this cold region greatly limit the growth of C4 plants and thus the long-chainn-alkanes in lake sediments are mainly derived from leaf wax lipids of C3 plants growing within the sandy land. In this C3-vegetation-dominated region, the delta(13)C(27-33)value (weighted carbon isotope values ofnC(27)-nC(33)) are regulated mainly by the physiological and biochemical responses of plants to water stress and are therefore interpreted as a proxy of effective precipitation or humidity. The delta(13)C(27-33)time series shows a trend of gradually decreasing values that suggests an increase in effective precipitation since 8.5 ka (1 ka = 1000 cal yr BP). Relative droughts occurred during the intervals of 6.3-5.5, 4.1-3.6 ka, and during the last 200 years. In addition, the delta(13)C(27-33)time series and comparable paleoenvironmental records from neighboring sites suggest opposite trends of summer monsoon rainfall between northeastern and southeastern China. We suggest that a coupled process between low and high latitudes (the western Pacific Subtropical High and the Okhotsk High) may have played a fundamental role in regulating the shift of the frontal rainfall belt and monsoon rainfall distribution in eastern China during the Holocene.
WOS关键词EAST-ASIAN SUMMER ; SEA-ICE EXTENT ; NORTH CHINA ; CLIMATE VARIABILITY ; INNER-MONGOLIA ; POLLEN DATA ; MONSOON ; VEGETATION ; PLANTS ; PRECIPITATION
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[41302141] ; National Natural Science Foundation of China[41877301] ; CGS Foundation[YYWF201618]
WOS研究方向Physical Geography ; Geology
语种英语
出版者SAGE PUBLICATIONS LTD
WOS记录号WOS:000542329900001
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; CGS Foundation ; CGS Foundation ; CGS Foundation ; CGS Foundation ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; CGS Foundation ; CGS Foundation ; CGS Foundation ; CGS Foundation ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; CGS Foundation ; CGS Foundation ; CGS Foundation ; CGS Foundation ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; CGS Foundation ; CGS Foundation ; CGS Foundation ; CGS Foundation
源URL[http://ir.iggcas.ac.cn/handle/132A11/97153]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Xie, Manman; Chu, Guoqiang
作者单位1.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, 19 Beitucheng West Rd, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
5.Natl Res Ctr Geoanal, Beijing, Peoples R China
6.Chinese Acad Geol Sci, Inst Geol, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Xie, Manman,Sun, Qing,Dong, Haowei,et al. n-Alkanes and compound carbon isotope records from Lake Yiheshariwusu in the Hulun Buir sandy land, northeastern China[J]. HOLOCENE,2020:11.
APA Xie, Manman.,Sun, Qing.,Dong, Haowei.,Liu, Siwen.,Shang, Wenyu.,...&Chu, Guoqiang.(2020).n-Alkanes and compound carbon isotope records from Lake Yiheshariwusu in the Hulun Buir sandy land, northeastern China.HOLOCENE,11.
MLA Xie, Manman,et al."n-Alkanes and compound carbon isotope records from Lake Yiheshariwusu in the Hulun Buir sandy land, northeastern China".HOLOCENE (2020):11.

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来源：地质与地球物理研究所

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