This record is being processed for inclusion into GeoRef. It may not yet have been indexed, given a translated title, or checked by a GeoRef editor.

A hierarchical framework for disentangling different controls on leaf wax δDn-alkane values in terrestrial higher plants

Saved in:
Online Access: Get full text
doi: 10.1016/j.quascirev.2018.10.026
Authors:Liu, Jinzhao; An, Zhisheng
Author Affiliations:Primary:
Chinese Academy of Sciences, Institute of Earth Environment, State Key Laboratory of Loess and Quaternary Geology, Xi'an, China
Xi'an Jiaotong University, School of Human Settlements and Civil Engineering, Xi'an, China
Volume Title:Quaternary Science Reviews
Source:Quaternary Science Reviews, Vol.201, p.409-417. Publisher: Elsevier, International. ISSN: 0277-3791
Publication Date:2018
Note:In English
Summary:Leaf wax δDn-alkane values have been widely utilized in terrestrial paleoenvironmental research, and numerous studies have reported that leaf wax δDn-alkane values were affected by a lot of factors. However, the current knowledge regarding the constructive relationships among these factors is still unclear. Based upon a limited compilation of available δDn-alkane records from published literature across the world, we proposed a hierarchical framework of three-level controls on leaf wax δDn-alkane values by using an Interpretive Structural Modeling (ISM). Precipitation δD, plant types and evapotranspiration are the first-level controls that serve as direct co-controls on leaf wax δDn-alkane values in higher plants, on average contributing 47 ± 22%, 20 ± 9.8% and 33%, respectively. The proportions of different controls on leaf wax δDn-alkane values vary significantly over the world, probably responsible for the across-site substantial variability of isotopic fractionation (εapp) between leaf wax δDn-alkane values and precipitation δD. Moreover, extra factors (e.g., salinity, aridity, seasonality etc.) and climate parameters (e.g., temperature, relative humidity, light intensity etc.) execute the second-level and third-level controls on leaf wax δDn-alkane values, respectively. They play indirect controls, through affecting the first-level controls, and thus are translated into leaf wax δDn-alkane values. To quantitatively disentangle these controls on leaf wax δDn-alkane values is important for better understanding the spatial-temporal variability of sedimentary δDn-alkane values.
Record ID:846448-24
Copyright Information:GeoRef, Copyright 2021 American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands
Tags: Add Tag
No Tags, Be the first to tag this record!
Be the first to leave a comment!
You must be logged in first