Coupled isotopes of plant wax and hemicellulose markers
نویسندگان
چکیده
Introduction Conclusions References Tables Figures
منابع مشابه
A Pleistocene palaeovegetation record from plant wax biomarkers from the Nachukui Formation, West Turkana, Kenya.
Reconstructing vegetation at hominin fossil sites provides us critical information about hominin palaeoenvironments and the potential role of climate in their evolution. Here we reconstruct vegetation from carbon isotopes of plant wax biomarkers in sediments of the Nachukui Formation in the Turkana Basin. Plant wax biomarkers were extracted from samples from a wide range of lithologies that inc...
متن کاملRapid analysis of C in plant-wax n-alkanes for reconstruction of terrestrial vegetation signals from aquatic sediments
[1] Long-chain, odd-carbon-numbered C25 to C35 n-alkanes are characteristic components of epicuticular waxes produced by terrestrial higher plants. They are delivered to aquatic systems via eolian and fluvial transport and are preserved in underlying sediments. The isotopic compositions of these products can serve as records of past vegetation. We have developed a rapid method for stable carbon...
متن کاملThe use of senescent plant biomass to investigate relationships between potential particulate and dissolved organic matter in a wetland ecosystem
The purpose of this research was to (1) determine if different species of wetland vegetation produced characteristically different dissolved organic matter (DOM) based upon both chemical and physical characteristics and (2) determine if any relationships exist between characteristics of DOM derived from freshly senescent tissues of different wetland plant species common to the Florida Everglade...
متن کاملAn integrated hydrogen and carbon stable isotope approach
12 We present a novel application for quantitatively apportioning sources of organic matter in streambed 13 sediments via a coupled δH and δC compound-specific isotope analysis (CSIA) of leaf wax n14 alkane biomarkers using a Bayesian mixing model. Leaf wax extracts of 13 plant species were 15 collected from across three sub-environments (aquatic, bankside and terrestrial) and four plant 16 fun...
متن کاملDifferent hydrogen isotope fractionations during lipid formation in higher plants: Implications for paleohydrology reconstruction at a global scale
Leaf wax δDn-alkane values have shown to differ significantly among plant life forms (e.g., among grasses, shrubs, and trees) in higher plants. However, the underlying causes for the differences in leaf wax δDn-alkane values among different plant life forms remain poorly understood. In this study, we observed that leaf wax δDn-alkane values between major high plant lineages (eudicots versus mon...
متن کامل