Spatio-temporal variation of stable isotopes in precipitation in the Heihe River Basin, Northwestern China

doi:10.1007/s12665-009-0432-7

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	Spatio-temporal variation of stable isotopes in precipitation in the Heihe River Basin, Northwestern China
	Wu, Jinkui ; Ding, Y.; Ye, B.; Yang, Q.; Zhang, X.; Wang, J.
	2010-09
发表期刊	ENVIRONMENTAL EARTH SCIENCES
卷号	61 期号:6 页码:1123-1134
摘要	An intensive investigation of the spatial and temporal variations of delta D and delta O-18 in precipitation was conducted during 2002-2004 in six sites in the Heihe River Basin, Northwestern China. The delta D and delta O-18 values for 301 precipitation samples ranged from +59 to -254 and +6.5 to -33.4 parts per thousand, respectively. The relationship between delta D and delta O-18 defines a well-constrained line given by delta D = 7.82 delta O-18 + 7.63, which is nearly identical to the meteoric water line in the Northern China. This wide range indicates that stable isotopes in precipitation were primarily controlled by different condensation mechanisms as a function of air temperature and varying sources of moisture. The results of backward trajectory of each precipitation day at Xishui show that the moisture of the precipitation in cold season (October-March) mainly originated from the west while the moisture source was more complicated in warm season (April-September). The simulation of seasonal delta O-18 variation shows that the stable isotope composition of precipitation tended to a clear sine-wave seasonal variation. The spatial variation of delta O-18 shows that the weighted average delta O-18 values decreases with the increasing altitude of sampling sites. The great difference of air temperature which led to the differences of condensation mechanisms and local recycled continental moisture may have influence upon the isotopic composition of rain events in different sites.
关键词	Precipitation Stable isotopes Spatio-temporal variation Heihe River Basin
DOI	10.1007/s12665-009-0432-7
收录类别	SCI ; EI ; SCOPUS ; SCIE
ISSN	1866-6280
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS记录号	WOS:000281668400003
出版者	SPRINGER
原始文献类型	Article
EISSN	1866-6299
引用统计	被引频次：60[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.lzufe.edu.cn/handle/39EH0E1M/14675
专题	艺术学院
作者单位	1.Univ Giessen, Inst Landscape Ecol & Resources Management, D-35392 Giessen, Germany; 2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Key Lab Ecol Hydrol & Basin Sci, Lanzhou 730000, Peoples R China; 3.Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China; 4.Lanzhou Commercial Coll, Sch Agr & Forestry Econ & Management, Lanzhou 730020, Peoples R China
推荐引用方式 GB/T 7714	Wu, Jinkui,Ding, Y.,Ye, B.,et al. Spatio-temporal variation of stable isotopes in precipitation in the Heihe River Basin, Northwestern China[J]. ENVIRONMENTAL EARTH SCIENCES,2010,61(6):1123-1134.
APA	Wu, Jinkui,Ding, Y.,Ye, B.,Yang, Q.,Zhang, X.,&Wang, J..(2010).Spatio-temporal variation of stable isotopes in precipitation in the Heihe River Basin, Northwestern China.ENVIRONMENTAL EARTH SCIENCES,61(6),1123-1134.
MLA	Wu, Jinkui,et al."Spatio-temporal variation of stable isotopes in precipitation in the Heihe River Basin, Northwestern China".ENVIRONMENTAL EARTH SCIENCES 61.6(2010):1123-1134.

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