Holocene climate changes in the monsoon/arid transition reflected by carbon concentration in Daihai Lake of Inner Mongolia

doi:10.1191/0959683606hl950rp

	Holocene climate changes in the monsoon/arid transition reflected by carbon concentration in Daihai Lake of Inner Mongolia
	Xiao, JL ; Wu, JT ; Si, B ; Liang, WD ; Nakamura, T ; Liu, BL ; Inouchi, Y
刊名	HOLOCENE
	2006-06-01
卷号	16 期号:4 页码:551-560
关键词	monsoon/arid transition Daihai Lake sediment cores carbon concentrations temperature precipitation Holocene Inner Mongolia
ISSN号	0959-6836
DOI	10.1191/0959683606hl950rp
文献子类	Article
英文摘要	Two sediment cores recovered in the central part of Daihai Lake in north-central China were analysed at 2- to 4- cm intervals for total inorganic and organic carbon ( TIC and TOC) concentrations. The TIC concentration is inferred to reflect temperatures over the lake region and an increase in the TIC concentration implies an increase in the temperature. TOC concentration is considered to reflect the precipitation in the lake basin and higher TOC concentrations denote more precipitations. Thus AMS C-14 time series of the TIC and TOC records of Daihai Lake sediments uncovers a detailed history of changes in temperature and precipitation in north- central China during the last c. 12 000 yr. The Holocene, an epoch of postglacial warmth, started c. 11 500 cal. yr BP, and can be subdivided into three stages: the early ( c. 11 500 - 8100 cal. yr BP), middle ( c. 8100 - 3300 cal. yr BP) and the late Holocene ( c. 3300 - 0 cal. yr BP). The climate was warm and dry during the early Holocene, warm and wet during the middle Holocene, and in the late Holocene became cooler and drier but displayed a relatively warmer and wetter interval between c. 1700 and 1300 cal. yr BP. The Holocene Climatic Optimum, defined as a postglacial episode of both megathermal and megahumid climate, might have occurred in north- central China between c. 8100 and 3300 cal. yr BP, and the climate during this period was variable and punctuated by cool and/ or dry events. We infer that changes in the temperature were directly controlled by changes in summer solar radiation in the Northern Hemisphere resulting from progressive changes in the Earth's orbital parameters. Whereas an increase in the monsoonal precipitation could be closely related to an increase in the sea surface temperature of the low- latitude Pacific Ocean, an increase in the temperature and size of the Western Pacific Warm Pool and a westward shifted and strengthened Kuroshio Current in the western Pacific.
WOS关键词	ORGANIC-MATTER ; ASIAN MONSOON ; QINGHAI ; CHINA ; PLEISTOCENE ; RECORD ; SIMULATIONS ; ISOTOPE ; HISTORY ; REGION
WOS研究方向	Physical Geography ; Geology
语种	英语
出版者	HODDER ARNOLD, HODDER HEADLINE PLC
WOS记录号	WOS:000238438800008
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/66786]
专题	中国科学院地质与地球物理研究所
通讯作者	Xiao, JL
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Nagoya Univ, Ctr Chronol Res, Nagoya, Aichi 4648602, Japan 3.China Univ Geosci, Natl Lab Sci Drilling, Beijing, Peoples R China 4.Ehime Univ, Fac Sci, Dept Earth Sci, Matsuyama, Ehime 790857, Japan
推荐引用方式 GB/T 7714	Xiao, JL,Wu, JT,Si, B,et al. Holocene climate changes in the monsoon/arid transition reflected by carbon concentration in Daihai Lake of Inner Mongolia[J]. HOLOCENE,2006,16(4):551-560.
APA	Xiao, JL.,Wu, JT.,Si, B.,Liang, WD.,Nakamura, T.,...&Inouchi, Y.(2006).Holocene climate changes in the monsoon/arid transition reflected by carbon concentration in Daihai Lake of Inner Mongolia.HOLOCENE,16(4),551-560.
MLA	Xiao, JL,et al."Holocene climate changes in the monsoon/arid transition reflected by carbon concentration in Daihai Lake of Inner Mongolia".HOLOCENE 16.4(2006):551-560.