High-resolution evidence from southern China of an early Holocene optimum and a mid-Holocene dry event during the past 18,000 years

doi:10.1016/j.yqres.2004.05.004

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（1985-2004）

	High-resolution evidence from southern China of an early Holocene optimum and a mid-Holocene dry event during the past 18,000 years
	Zhou, WJ; Yu, XF; Jull, AJT; Burr, G; Xiao, JY; Lu, XF; Xian, F
	2004-07
发表期刊	QUATERNARY RESEARCH
卷号	62 期号:1 页码:39-48
文章类型	Article
摘要	Computer models suggest that the Holocene Optimum for East Asian summer monsoon precipitation occurred at different times in different regions of China. Previous studies indicate that this time-transgressive Holocene Optimum should have been experienced about 3000 yr ago in southern China. In this study we describe a section which allows us to test this timing directly. We have closely examined high-resolution eutrophic peat/mud sequences covering the past 18,000 cal yr at Dahu, Jiangxi, on the southern boundary of the mid subtropical zone in China. Late Pleistocene successions in the Dahu record indicate cooler and much wetter conditions relative to synchronous events in north-central China. Our results indicate that the Holocene Optimum occurred between ca. 10,000 and 6000 cal yr ago in southern China, consistent with the global pattern. Conditions were relatively dry and cold from 6000 to 4000 cal yr ago. Our data also support the conclusion that the last deglaciation to early Holocene in the south was much wetter, resulting in the formation of dense broad-leaved forests, which could have acted to moderate land temperature similar to10,000 to 6000 cal yr ago, yielding a stable early-Holocene climate. After 6000 cal yr, forest reduction led to unstable land temperatures, and possibly to a northerly shift of the subtropical high-pressure system. Whatever the mechanism, these changes resulted in decreased precipitation between 6000 and 4000 cal yr B.P. in southern China. (C) 2004 University of Washington. All rights reserved.
关键词	lacustrine sediment eutrophic peat AMS C-14 dating Holocene optimum monsoon precipitation
学科领域	Physical Geography ; Geology
DOI	10.1016/j.yqres.2004.05.004
关键词[WOS]	GALAPAGOS-ISLANDS ; LAST DEGLACIATION ; MONSOON CLIMATE ; AGE CALIBRATION ; EAST-ASIA ; RECORD ; VARIABILITY ; POLAR ; CAVE ; ICE
收录类别	SCI ; SCIE
语种	英语
WOS研究方向	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000222925600005
出版者	CAMBRIDGE UNIV PRESS
引用统计	被引频次：214[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/361006/11848
专题	黄土与第四纪地质国家重点实验室（1985-2004）
推荐引用方式 GB/T 7714	Zhou, WJ,Yu, XF,Jull, AJT,et al. High-resolution evidence from southern China of an early Holocene optimum and a mid-Holocene dry event during the past 18,000 years[J]. QUATERNARY RESEARCH,2004,62(1):39-48.
APA	Zhou, WJ.,Yu, XF.,Jull, AJT.,Burr, G.,Xiao, JY.,...&Xian, F.(2004).High-resolution evidence from southern China of an early Holocene optimum and a mid-Holocene dry event during the past 18,000 years.QUATERNARY RESEARCH,62(1),39-48.
MLA	Zhou, WJ,et al."High-resolution evidence from southern China of an early Holocene optimum and a mid-Holocene dry event during the past 18,000 years".QUATERNARY RESEARCH 62.1(2004):39-48.