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  2. 地质与地球物理研究所
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  4. 中国科学院新生代地质与环境重点实验室
A record of Holocene climate changes in central Asia derived from diatom-inferred water-level variations in Lake Kalakuli (Eastern Pamirs, western China)

文献类型：期刊论文

作者Peng, Yumei4; Rioual, Patrick2,3; Jin, Zhangdong1
刊名FRONTIERS IN EARTH SCIENCE
出版日期2022-07-18
卷号10页码:20
关键词paleolimnology Central Asia diatoms glacier variation mid-latitude westerlies lake-level fluctuation
DOI10.3389/feart.2022.825573
英文摘要The unique geographical and climatic settings of the eastern Pamirs make this region sensitive to the Westerlies and global climate change. Holocene fluctuations in water-level of Lake Kalakuli, a proglacial lake located to the northwest of the Muztag Ata glacier, were reconstructed based on diatoms from a -15 m long sediment core spanning the last similar to 9,900 years. To establish how diatom species distribute in relation to water depth in Lake Kalakuli, a dataset of 45 surface sediment samples was retrieved from different water depth. Statistical analyses such as cluster analysis (TWINSPAN) and redundancy analysis (RDA) were used to demonstrate that the water depth gradient is the main environmental gradient driving the distribution of these diatom assemblages. A diatom-water depth transfer function, was then developed using a weighted averaging partial least squares component 2 model (R-2 = 0.89, RMSEP = 1.85 m) and applied to the Holocene diatom sequence from Lake Kalakuli. Due to the large residual errors in the model only the general trends in water level are proposed. Effective moisture increased rapidly during the early Holocene, as the water depth reached a high level from the lowest level within about two thousand years. Only small amplitude fluctuations were recorded during the mid- and late Holocene until the last few hundred years when a marked increase occurred. Changes in summer insolation over the northern hemisphere drove the advances and retreats of the Muztag Ata glacier, which in turn controlled the fluctuations of water level in this lake. The diatom-derived paleoclimatic trend from Lake Kalakuli is consistent with the Holocene climate evolution in the Westerlies-dominated area of Central Asia.
WOS关键词ARID CENTRAL-ASIA ; TIBETAN PLATEAU ; MOISTURE EVOLUTION ; XINJIANG PROVINCE ; LATE PLEISTOCENE ; BOREAL LAKES ; DEPTH MODELS ; MUZTAGH ATA ; RECONSTRUCTION ; FLUCTUATIONS
资助项目Research Center for Ecology and Environment of Central Asia ; CAS and CAS Strategic Priority Research Program[XDA2007010202] ; Chinese Academy of Sciences[XDB 26000000] ; National Natural Science Foundation of China[42102233] ; National Natural Science Foundation of Hunan Province, China[2020JJ5518] ; Research Foundation of Education Bureau of Hunan Province, China[19C1669]
WOS研究方向Geology
语种英语
出版者FRONTIERS MEDIA SA
WOS记录号WOS:000838210700001
资助机构Research Center for Ecology and Environment of Central Asia ; Research Center for Ecology and Environment of Central Asia ; CAS and CAS Strategic Priority Research Program ; CAS and CAS Strategic Priority Research Program ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of Hunan Province, China ; National Natural Science Foundation of Hunan Province, China ; Research Foundation of Education Bureau of Hunan Province, China ; Research Foundation of Education Bureau of Hunan Province, China ; Research Center for Ecology and Environment of Central Asia ; Research Center for Ecology and Environment of Central Asia ; CAS and CAS Strategic Priority Research Program ; CAS and CAS Strategic Priority Research Program ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of Hunan Province, China ; National Natural Science Foundation of Hunan Province, China ; Research Foundation of Education Bureau of Hunan Province, China ; Research Foundation of Education Bureau of Hunan Province, China ; Research Center for Ecology and Environment of Central Asia ; Research Center for Ecology and Environment of Central Asia ; CAS and CAS Strategic Priority Research Program ; CAS and CAS Strategic Priority Research Program ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of Hunan Province, China ; National Natural Science Foundation of Hunan Province, China ; Research Foundation of Education Bureau of Hunan Province, China ; Research Foundation of Education Bureau of Hunan Province, China ; Research Center for Ecology and Environment of Central Asia ; Research Center for Ecology and Environment of Central Asia ; CAS and CAS Strategic Priority Research Program ; CAS and CAS Strategic Priority Research Program ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of Hunan Province, China ; National Natural Science Foundation of Hunan Province, China ; Research Foundation of Education Bureau of Hunan Province, China ; Research Foundation of Education Bureau of Hunan Province, China
源URL[http://ir.iggcas.ac.cn/handle/132A11/108425]  
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Rioual, Patrick; Jin, Zhangdong
作者单位1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironment, Beijing, Peoples R China
3.Inst Geol & Geophys, Chinese Acad Sci, Key Lab Cenozo Geol & Environm, Beijing, Peoples R China
4.Shaoyang Univ, Shaoyang, Peoples R China
推荐引用方式
GB/T 7714		 Peng, Yumei,Rioual, Patrick,Jin, Zhangdong. A record of Holocene climate changes in central Asia derived from diatom-inferred water-level variations in Lake Kalakuli (Eastern Pamirs, western China)[J]. FRONTIERS IN EARTH SCIENCE,2022,10:20.
APA Peng, Yumei,Rioual, Patrick,&Jin, Zhangdong.(2022).A record of Holocene climate changes in central Asia derived from diatom-inferred water-level variations in Lake Kalakuli (Eastern Pamirs, western China).FRONTIERS IN EARTH SCIENCE,10,20.
MLA Peng, Yumei,et al."A record of Holocene climate changes in central Asia derived from diatom-inferred water-level variations in Lake Kalakuli (Eastern Pamirs, western China)".FRONTIERS IN EARTH SCIENCE 10(2022):20.

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来源：地质与地球物理研究所

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