Hydrogen isotopic compositions and their environmental significance for individual n-alkanes in typical plants from land in China

doi:10.1007/s11434-008-0443-x

	Hydrogen isotopic compositions and their environmental significance for individual n-alkanes in typical plants from land in China
	Duan Yi; Wu BaoXiang
刊名	CHINESE SCIENCE BULLETIN
	2009-02-01
卷号	54 期号:3 页码:461-467
关键词	plant individual n-alkane hydrogen isotopic composition and distribution environmental index
ISSN号	1001-6538
DOI	10.1007/s11434-008-0443-x
文献子类	Article
英文摘要	Hydrogen isotopes of n-alkanes in grasses, tree leaves and reeds from six regions with latitudes of 20A degrees to 39A degrees N in China are measured by GC-TC-IRMS analytical technique in order to understand their hydrogen isotopic compositions and environmental significance. The results show that a difference in A degrees D values (from -42.1aEuro degrees to -66.6aEuro degrees) of n-alkanes exists among the same kinds of plants from various regions. Hydrogen isotopic compositions of most even carbon numbered n-alkanes in every plant are slightly heavier than that of the odd homologues. A trend toward D-enrichment with increasing chain length of n-alkanes in most plant samples is observed. Mean A degrees D values of n-alkanes in the studied plants range from -202.6aEuro degrees to -130.7aEuro degrees and the reed from a salt marsh has the largest value. The mean A degrees D values of individual n-alkanes among the same kinds of plants from various regions have the characteristics of leaf > reed > grass. The hydrogen isotopic compositions of n-alkanes are apparently distinct among various kinds of plants from the same region and the mean A degrees D values exhibit a distribution of tree leaf > reed > grass. It is observed that the mean A degrees D values of n-alkanes and A degrees D values of C(27) and C(29) n-alkanes in the grasses and tree leaves from these studied regions correlate clearly negatively with latitude and positively with temperature, indicating that these values can be used as excellent indicators of environment and climate. These results provide important basic data for understanding the distributional law of hydrogen isotopes of individual n-alkanes and their applied research.
WOS关键词	CLIMATIC CONDITIONS ; NANSHA SEA ; SEDIMENTS ; RATIOS ; FRACTIONATION ; GEOCHEMISTRY ; EVAPORATION ; EXCHANGE ; LIPIDS
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000263357000019
资助机构	National Natural Science Foundation of China(40642007 ; National Natural Science Foundation of China(40642007 ; National Basic Research Program of China(2005CB422105) ; National Basic Research Program of China(2005CB422105) ; CAS President Award ; CAS President Award ; 40772069) ; 40772069) ; National Natural Science Foundation of China(40642007 ; National Natural Science Foundation of China(40642007 ; National Basic Research Program of China(2005CB422105) ; National Basic Research Program of China(2005CB422105) ; CAS President Award ; CAS President Award ; 40772069) ; 40772069) ; National Natural Science Foundation of China(40642007 ; National Natural Science Foundation of China(40642007 ; National Basic Research Program of China(2005CB422105) ; National Basic Research Program of China(2005CB422105) ; CAS President Award ; CAS President Award ; 40772069) ; 40772069) ; National Natural Science Foundation of China(40642007 ; National Natural Science Foundation of China(40642007 ; National Basic Research Program of China(2005CB422105) ; National Basic Research Program of China(2005CB422105) ; CAS President Award ; CAS President Award ; 40772069) ; 40772069)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/71592]
专题	中国科学院地质与地球物理研究所
通讯作者	Duan Yi
作者单位	Chinese Acad Sci, Inst Geol & Geophys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Duan Yi,Wu BaoXiang. Hydrogen isotopic compositions and their environmental significance for individual n-alkanes in typical plants from land in China[J]. CHINESE SCIENCE BULLETIN,2009,54(3):461-467.
APA	Duan Yi,&Wu BaoXiang.(2009).Hydrogen isotopic compositions and their environmental significance for individual n-alkanes in typical plants from land in China.CHINESE SCIENCE BULLETIN,54(3),461-467.
MLA	Duan Yi,et al."Hydrogen isotopic compositions and their environmental significance for individual n-alkanes in typical plants from land in China".CHINESE SCIENCE BULLETIN 54.3(2009):461-467.