Seasonal variability of oxygen and hydrogen stable isotopes in precipitation and cave drip water at Guilin, southwest China

doi:10.1007/s12665-014-3224-7

CORC > 中国地质调查局 > 中国地质调查局 > 中国地质科学院岩溶地质研究所

	Seasonal variability of oxygen and hydrogen stable isotopes in precipitation and cave drip water at Guilin, southwest China
	Wu, Xia 2; Zhu, Xiaoyan ; Pan, Moucheng ; Zhang, Meiliang
刊名	ENVIRONMENTAL EARTH SCIENCES
	2014
卷号	72 期号:8 页码:3183-3191
关键词	Precipitation Drip water Oxygen isotopes Seasonal variation
ISSN号	1866-6280
DOI	10.1007/s12665-014-3224-7
英文摘要	The interpretation of climatic information from stalagmites has traditionally been a complex research problem, with oxygen isotopes playing a particularly important role in global climate change studies. This study investigates the relationship between oxygen isotope composition of the atmospheric in precipitation and cave drip water at Panlong cave in southwest China on seasonal timescales of variability. Time series seasonal variability was derived from Panlong cave in Guilin by collecting daily precipitation samples for stable isotope analysis during 2012. Results indicate that delta O-18 of precipitation contains a clear seasonal variation whereby higher values are mainly distributed during winter and lower values during summer. Seasonal variations in water sources affect the precipitation delta O-18 values. Drip water delta O-18 also displayed a seasonal cycle which is attenuated relative to delta O-18 of precipitation. Drip water time series display seasonal cycle ranges from 1.5 to 3.5 aEuro degrees relative to Vienna Standard Mean Ocean Water, which mainly follow the precipitation delta O-18 seasonal cycle. Seasonal variation in drip water delta O-18 supports interpretations of the stalagmite delta O-18 record as a paleoclimate proxy sensitive to the local environment. This monitoring experiment revealed that drip water must be transported through the epikarst in approximately 1.5 months during cold periods, and < 0.5 months during warm periods. Different residence time percolation is mainly affected by the atmospheric precipitation amount, depending on whether soil moisture reaches saturation.
学科主题	环境地质学
WOS关键词	HOLOCENE ASIAN MONSOON ; SPELEOTHEM CALCITE ; DELTA-O-18 ; STALAGMITE ; CLIMATE ; RECORD ; SCALE
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000342494100035
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40261]
专题	中国地质科学院岩溶地质研究所
作者单位	1.CAGS, Karst Dynam Lab, Inst Karst Geol, Guilin 541004, Peoples R China 2.中国地质调查局岩溶地质研究所
推荐引用方式 GB/T 7714	Wu, Xia,Zhu, Xiaoyan,Pan, Moucheng,et al. Seasonal variability of oxygen and hydrogen stable isotopes in precipitation and cave drip water at Guilin, southwest China[J]. ENVIRONMENTAL EARTH SCIENCES,2014,72(8):3183-3191.
APA	Wu, Xia,Zhu, Xiaoyan,Pan, Moucheng,&Zhang, Meiliang.(2014).Seasonal variability of oxygen and hydrogen stable isotopes in precipitation and cave drip water at Guilin, southwest China.ENVIRONMENTAL EARTH SCIENCES,72(8),3183-3191.
MLA	Wu, Xia,et al."Seasonal variability of oxygen and hydrogen stable isotopes in precipitation and cave drip water at Guilin, southwest China".ENVIRONMENTAL EARTH SCIENCES 72.8(2014):3183-3191.