The 'Mediaeval Warm Period' drought recorded in Lake Huguangyan, tropical South China

doi:10.1191/0959683602hl566ft

	The 'Mediaeval Warm Period' drought recorded in Lake Huguangyan, tropical South China
	Chu, GQ ; Liu, JQ ; Sun, Q ; Lu, HY ; Gu, ZY ; Wang, WY ; Liu, TS
刊名	HOLOCENE
	2002
卷号	12 期号:5 页码:511-516
关键词	palaeoclimate geochemistry lacustrine sediments 'Mediaeval Warm Period' 'Little Ice Age' drought China
ISSN号	0959-6836
DOI	10.1191/0959683602hl566ft
文献子类	Article
英文摘要	The geochemistry of dated sediment cores from Lake Huguangyan (21degrees9'N, 110degrees17'E), tropical South China, reveals distinct stratigraphical patterns in total organic and inorganic carbon (TOC, TIC), biogenic silica (BS) and total nitrogen (TN) over the past 1400 years. In this hydrologically closed lake, TIC variations may reflect changes in the precipitation/evaporation ratio, which controls the evaporative enrichment of carbonate. TOC, BS and TN in the sediment are proxy indicators of lake productivity and nutrient input, which we believe are linked to local precipitation. High TIC content correlates with low concentrations of TOC, BS and TN, and indicates two drought episodes dated to AD 670-760 and AD 880-1260 in the sediments of Lake Huguangyan. Local historical chronicles support these data, suggesting that the climate of tropical South China was dry during the 'Mediaeval Warm Period' (MWP) and wet during the 'Little Ice Age' (LIA). The detected MWP drought is temporally correlated with evidence for lower precipitation on the Guliya (China) and Quelccaya (Peru) ice caps, and with increased salinity in Moon Lake (US Great Plains).
WOS关键词	ENVIRONMENTAL-CHANGE ; EAST-AFRICA ; PAST ; PALEOLIMNOLOGY ; CENTURIES ; AGE ; BP
WOS研究方向	Physical Geography ; Geology
语种	英语
出版者	ARNOLD, HODDER HEADLINE PLC
WOS记录号	WOS:000177949100001
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/77373]
专题	中国科学院地质与地球物理研究所
通讯作者	Chu, GQ
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Geol Anal Ctr, Beijing, Peoples R China 3.Adm Ctr Chinas Agenda 21st Century, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Chu, GQ,Liu, JQ,Sun, Q,et al. The 'Mediaeval Warm Period' drought recorded in Lake Huguangyan, tropical South China[J]. HOLOCENE,2002,12(5):511-516.
APA	Chu, GQ.,Liu, JQ.,Sun, Q.,Lu, HY.,Gu, ZY.,...&Liu, TS.(2002).The 'Mediaeval Warm Period' drought recorded in Lake Huguangyan, tropical South China.HOLOCENE,12(5),511-516.
MLA	Chu, GQ,et al."The 'Mediaeval Warm Period' drought recorded in Lake Huguangyan, tropical South China".HOLOCENE 12.5(2002):511-516.