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 |
ISSN | 0094-8276 |
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 |
DOI | 10.1029/2020GL089257 |
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 | |
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 |
推荐引用方式 GB/T 7714 | 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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