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Abrupt Freshening Since the Early Little Ice Age in Lake Sayram of Arid Central Asia Inferred From an Alkenone Isomer Proxy
Yao, Yuan1,2; Lan, Jianghu2,3; Zhao, Jiaju2; Vachula, Richard S.4; Xu, Hai5; Cai, Yanjun1; Cheng, Hai1; Huang, Yongsong2,4
通讯作者Yao, Yuan(yaoyuan@xjtu.edu.cn) ; Lan, Jianghu(lanjh@ieecas.cn)
2020-08-28
发表期刊GEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
卷号47期号:16页码:11
摘要Hydroclimatic variations of arid central Asia (ACA) significantly impact regional ecosystems and human civilizations. Here we present a lake water salinity record of the last 3,000 years from Lake Sayram in the core area of ACA using a new alkenone isomer-based RIK(37)index. Our record shows an abrupt decrease in salinity by more than 5 parts per thousand since the "early" Little Ice Age (LIA) (about CE 1150), which can be attributed to the combined effect of regional wetting, cooling, and topographic features. Combined with other moisture records in the region, we find two periods of relatively wet conditions during CE 1150-1550 and 1850 to present, which may be linked to Arctic sea ice expansion due to natural variability and, from CE 1950, anthropogenically induced warming. The wet conditions during CE 1206-1260 may have favored the spread of the Mongol Empire across the entire core area of ACA.
关键词alkenone isomer Group I Isochrysidales salinity early Little Ice Age arid central Asia westerly
DOI10.1029/2020GL089257
关键词[WOS]LONG-CHAIN ALKENONES ; HOLOCENE MOISTURE EVOLUTION ; NORTH-ATLANTIC OSCILLATION ; ISOTOPIC COMPOSITION ; CLIMATE-CHANGE ; TEMPERATURE ; PRECIPITATION ; CHINA ; PALEOTEMPERATURE ; DISTRIBUTIONS
收录类别SCI ; SCI
语种英语
资助项目National Natural Science Foundation of China[41702187] ; National Natural Science Foundation of China[41888101] ; Fundamental Research Funds for the Central Universities ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB40010300] ; Strategic Priority Research Program of Chinese Academy of Sciences[2019QZKK0101]
WOS研究方向Geology
项目资助者National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Strategic Priority Research Program of Chinese Academy of Sciences
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000566245300060
出版者AMER GEOPHYSICAL UNION
引用统计
被引频次:18[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/15244
专题现代环境研究室
第四纪科学与全球变化卓越创新中心
通讯作者Yao, Yuan; Lan, Jianghu
作者单位1.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Xian, Peoples R China
4.Brown Univ, Dept Earth Environm & Planetary Sci, Providence, RI 02912 USA
5.Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin, Peoples R China
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Yao, Yuan,Lan, Jianghu,Zhao, Jiaju,et al. Abrupt Freshening Since the Early Little Ice Age in Lake Sayram of Arid Central Asia Inferred From an Alkenone Isomer Proxy[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(16):11.
APA Yao, Yuan.,Lan, Jianghu.,Zhao, Jiaju.,Vachula, Richard S..,Xu, Hai.,...&Huang, Yongsong.(2020).Abrupt Freshening Since the Early Little Ice Age in Lake Sayram of Arid Central Asia Inferred From an Alkenone Isomer Proxy.GEOPHYSICAL RESEARCH LETTERS,47(16),11.
MLA Yao, Yuan,et al."Abrupt Freshening Since the Early Little Ice Age in Lake Sayram of Arid Central Asia Inferred From an Alkenone Isomer Proxy".GEOPHYSICAL RESEARCH LETTERS 47.16(2020):11.
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