delta O-18 values of tree rings as a proxy of monsoon precipitation in and Northwest China

doi:10.1016/j.chemgeo.2004.01.010

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

	delta O-18 values of tree rings as a proxy of monsoon precipitation in and Northwest China
	Liu, WG; Feng, XH; Liu, Y; Zhang, QG; An, ZS
	2004-05-28
发表期刊	CHEMICAL GEOLOGY
卷号	206 期号:1-2 页码:73-80
文章类型	Article
摘要	It is important to understand the history and dynamics of East Asian Monsoon system, which is the key control of environmental conditions in China. This work investigates the relationship between precipitation amount and oxygen isotopic compositions recorded in tree-ring cellulose as a potential tool for reconstruction of summer monsoon strength in and Northwest China. We found a significant positive correlation between the total annual precipitation and the delta(18)O value of tree rings. This correlation results from the fact that summer monsoon precipitation in the study area is relatively more enriched in O-18 than winter precipitation and the total amount of annual precipitation predominantly varies with the amount of summer precipitation brought by summer monsoons. The amount effect, the negative relationship between the precipitation amount and the precipitation delta(18)O, is often used to explain the seasonal isotopic distribution in meteoric water of China. This study presents a case where the delta(18)O value of tree rings and precipitation is positive associated. We point out that the amount effect, which was originally used for tropical convective storms, should not be simplistically considered as a mechanism for determining isotopic variations in China, particularly at high latitude (>30degreesN) and/or inland locations. (C) 2004 Elsevier B.V. All rights reserved.
关键词	oxygen isotopes tree ring precipitation East Asian Monsoon
学科领域	Geochemistry & Geophysics
DOI	10.1016/j.chemgeo.2004.01.010
关键词[WOS]	OXYGEN-ISOTOPE RATIOS ; CELLULOSE ; HYDROGEN ; RECORD ; FRACTIONATION ; VARIABILITY ; CLIMATE ; SERIES ; MODEL
收录类别	SCI ; SCIE
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS记录号	WOS:000221368800005
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：30[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/361006/11976
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	Liu, WG,Feng, XH,Liu, Y,et al. delta O-18 values of tree rings as a proxy of monsoon precipitation in and Northwest China[J]. CHEMICAL GEOLOGY,2004,206(1-2):73-80.
APA	Liu, WG,Feng, XH,Liu, Y,Zhang, QG,&An, ZS.(2004).delta O-18 values of tree rings as a proxy of monsoon precipitation in and Northwest China.CHEMICAL GEOLOGY,206(1-2),73-80.
MLA	Liu, WG,et al."delta O-18 values of tree rings as a proxy of monsoon precipitation in and Northwest China".CHEMICAL GEOLOGY 206.1-2(2004):73-80.