Leaf wax n-alkane distributions across plant types in the central Chinese Loess Plateau
Liu, JZ (Liu, Jinzhao)[ 1,2 ]; An, ZS (An, Zhisheng)[ 1 ]; Liu, H (Liu, Hu)[ 1,3 ]
通讯作者Liu, Jinzhao(liu.jin.zhao.am@stu.xjtu.edu.cn)
2018-11
发表期刊ORGANIC GEOCHEMISTRY
ISSN0146-6380
卷号125页码:260-269
文章类型期刊论文
摘要

Terrestrial ecosystems generally contain various plant types (e.g. dicots, monocots, gymnosperms), and an evaluation of the dominant plant type in an ecosystem is the key to understanding geological records in paleoenvironmental research. In this study, we examined n-alkane chain length distributions in terrestrial higher plants in the central Chinese Loess Plateau, and found that average chain length (ACL) could be utilized as an indicator for differentiating gymnosperms from angiosperms. ACL21–33 was less than 27 for gymnosperms, but more than 27 for angiosperms. Moreover, a derived Pv index from a selected n-alkane ratio, (i.e. (C31 + C33)/RCn(n=27–33)), provided a relative criterion for distinguishing between dicots and monocots within the angiosperms. When Pv < 0.1, the ecosystem was predominated by dicots, but those with Pv > 0.1, were dominated by monocots. Discrimination of the dominant plant type in an ecosystem is important when leaf wax n-alkanes are used as a proxy for paleoenvironmental reconstructions.

关键词N-alkane Leaf Wax Plant Types Chinese Loess Plateau
DOI10.1016/j.orggeochem.2018.09.006
关键词[WOS]HYDROGEN-ISOTOPIC COMPOSITION ; DELTA-D VALUES ; MIOCENE CLARKIA FORMATION ; TERRESTRIAL PLANTS ; SURROUNDING AREA ; LIPID BIOMARKERS ; TIBETAN PLATEAU ; ORGANIC-MATTER ; AQUATIC PLANTS ; SURFACE SOILS
收录类别SCI
语种英语
资助项目Chinese Academy of Sciences[QYZDY-SSW-DQC001] ; National Natural Science Foundation of China[41420104008]
WOS研究方向Geochemistry & Geophysics
项目资助者Chinese Academy of Sciences ; National Natural Science Foundation of China
WOS类目Geochemistry & Geophysics
WOS记录号WOS:000448941300026
出版者PERGAMON-ELSEVIER SCIENCE LTD
引用统计
被引频次:25[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/361006/9587
专题黄土与第四纪地质国家重点实验室(2010~)
通讯作者Liu, JZ (Liu, Jinzhao)[ 1,2 ]
作者单位1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, China;
2.School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, China;
3.University of Chinese Academy of Sciences, Beijing 100049, China
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GB/T 7714
Liu, JZ ,An, ZS ,Liu, H . Leaf wax n-alkane distributions across plant types in the central Chinese Loess Plateau[J]. ORGANIC GEOCHEMISTRY,2018,125:260-269.
APA Liu, JZ ,An, ZS ,&Liu, H .(2018).Leaf wax n-alkane distributions across plant types in the central Chinese Loess Plateau.ORGANIC GEOCHEMISTRY,125,260-269.
MLA Liu, JZ ,et al."Leaf wax n-alkane distributions across plant types in the central Chinese Loess Plateau".ORGANIC GEOCHEMISTRY 125(2018):260-269.
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