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DOI	10.1007/s11430-023-1272-6
	Insights into the provenance implication of leaf wax n-alkanes along the lower Yellow River
	Zhang, Liang; Liu, Jinzhao; Jiang, Chong; Zhang, Fei; An, Zhisheng
发表日期	2024
ISSN	1674-7313
EISSN	1869-1897
英文摘要	Serving as one of the largest rivers in terms of both sediment and organic carbon transport fluxes in the world, the Yellow River plays a crucial role in regional biogeochemical process as well as in the global carbon cycle. However, although a large number of studies have been carried out on the flux, composition, source and seasonal variation of total particulate organic carbon in the Yellow River so far, studies on molecular biomarkers at different spatial and temporal scales are still scarce. In this study, we focus on the molecular and hydrogen isotopic properties of leaf wax n-alkanes among different types of samples which obtained from different seasons (flood vs. non-flood) along the lower Yellow River. The molecular distribution of n-alkanes show that the riparian topsoils are subject to inputs from the overlying vegetation, while the suspended sediments from the flood season are characterized by the mixing of soil materials which originate from various stratigraphy with different ages on the Chinese Loess Plateau. Due to the contrasting hydrodynamic conditions, the n-alkanes in suspended sediments also show distinct molecular composition between flood and non-flood seasons. Additionally, considering the effect of climatic factors, the proportion of monocots in flood-season suspended sediments is calculated from a semi-quantitative perspective using delta 2Hwax. Our findings may bring to light new considerations for the interpretation of leaf wax proxies in studies of organic matter sources of Yellow River.
英文关键词	Molecular distribution; Hydrogen isotopic composition; Leaf wax n-alkanes; Suspended sediments; Lower Yellow River
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001190311800001
来源期刊	SCIENCE CHINA-EARTH SCIENCES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/301608
作者单位	Xi'an Jiaotong University; Chinese Academy of Sciences; Institute of Earth Environment, CAS
推荐引用方式 GB/T 7714	Zhang, Liang,Liu, Jinzhao,Jiang, Chong,et al. Insights into the provenance implication of leaf wax n-alkanes along the lower Yellow River[J],2024.
APA	Zhang, Liang,Liu, Jinzhao,Jiang, Chong,Zhang, Fei,&An, Zhisheng.(2024).Insights into the provenance implication of leaf wax n-alkanes along the lower Yellow River.SCIENCE CHINA-EARTH SCIENCES.
MLA	Zhang, Liang,et al."Insights into the provenance implication of leaf wax n-alkanes along the lower Yellow River".SCIENCE CHINA-EARTH SCIENCES (2024).