Tree xylem isotope analysis by mass and laser spectrometry
Published: 8 January 2020| Version 3 | DOI: 10.17632/mvfvpmnxgs.3
Contributors:
simon carriere, , , , , , , Albert Olioso, , , , Description
The use of xylem isotopes is an increasingly commonly used approach in eco-hydrological studies. Carrière et al. [2019] used this dataset to better understand where trees uptakes water under drought condition on a Mediterranean karstic system. Despite this technique is widely used, analytical issues still discussed within user community. We have conducted a number of tests which are relevant to be shared to animate the debate. We show that mass and laser spectrometer analyzes give very similar results for 46 xylem water and 9 drainage water samples. The full dataset (219 samples) shows that the xylem water undergo a deuterium fractionation which make the deuterium data unusable in the current state.
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Institutions
Environnement Mediterraneen et Modelisation des Agro-Hydrosystemes
Categories
Earth Sciences, Water Science, Mass Spectrometry, Laser Spectroscopy, Isotope, Ecohydrology, Plant Ecophysiology