High-resolution climate evolution derived from the sediment records of Erlongwan Maar Lake since 14 ka BP

doi:10.1007/s11434-012-5244-6

	High-resolution climate evolution derived from the sediment records of Erlongwan Maar Lake since 14 ka BP
	You HaiTao 2,3; Liu JiaQi 1
刊名	CHINESE SCIENCE BULLETIN
	2012-09-01
卷号	57 期号:27 页码:3610-3616
关键词	Erlongwan Maar Lake sediments varve climate variability
ISSN号	1001-6538
DOI	10.1007/s11434-012-5244-6
文献子类	Article
英文摘要	Varve counts with AMS C-14, Cs-137 and Pb-210 dating of sediments (0-900 cm) from Erlongwan Maar Lake, NE China were used to establish a high-resolution chronology series for the late Quaternary. Dry density, total organic carbon (TOC) content, total nitrogen (TN) content, TOC/TN ratios and stable organic carbon isotope (delta C-13(org)) ratios were continuously analyzed on this sediment profile. On the basis of lithological characters, sporo-pollen assemblages and geochemical analyses, we identified 6 climate stages within the last 14 ka BP. The time before the Holocene (14-11.4 ka BP) represents a higher-order oscillation climatic transitional period (I). The entire Holocene climate development (from 11.4 ka BP to present) exhibited an increasing temperature trend, although there were cold and warm alternations (II-VI). The periods included were: II (11.4-9.05 ka BP) warm-wet stage, III (9.05-7.4 ka BP) cold and warm fluctuation stage, IV (7.4-4.2 ka BP) smoothly warming climate stage, V (4.2-1.67 ka BP) climate optimum stage, and VI (from 1.67 ka BP to present) cool and drier stage. Each climate stage began with a warming event and ended with an abrupt cooling event. This climate change cycle had unequal time spaces that were progressively shorter over time. Several abrupt climate shifts occurred at about 9.4-9.05, 8.5-8.2, 7.8-7.4, 4.6-4.2, 3.7-3.25, 2-1.67 and 0.3-0.03 ka BP. Thus, it can be seen that the climate has been warming since 1920 AD, which indicates a new climate stage.
WOS关键词	GANG VOLCANIC FIELD ; NORTHEASTERN CHINA ; JILIN PROVINCE ; NE CHINA ; MONSOON RECORD ; PEAT CELLULOSE ; HOLOCENE ; CARBON ; CAVE ; BOG
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000308439500012
资助机构	National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; GUCAS ; GUCAS ; GUCAS ; GUCAS ; National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; GUCAS ; GUCAS ; GUCAS ; GUCAS ; National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; GUCAS ; GUCAS ; GUCAS ; GUCAS ; National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; National Natural Science Foundation of China(40802038) ; GUCAS ; GUCAS ; GUCAS ; GUCAS
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/84574]
专题	中国科学院地质与地球物理研究所
通讯作者	Liu JiaQi
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Key Lab Computat Geodynam, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Coll Earth Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	You HaiTao,Liu JiaQi. High-resolution climate evolution derived from the sediment records of Erlongwan Maar Lake since 14 ka BP[J]. CHINESE SCIENCE BULLETIN,2012,57(27):3610-3616.
APA	You HaiTao,&Liu JiaQi.(2012).High-resolution climate evolution derived from the sediment records of Erlongwan Maar Lake since 14 ka BP.CHINESE SCIENCE BULLETIN,57(27),3610-3616.
MLA	You HaiTao,et al."High-resolution climate evolution derived from the sediment records of Erlongwan Maar Lake since 14 ka BP".CHINESE SCIENCE BULLETIN 57.27(2012):3610-3616.