Toward a common methodological framework for the sampling, extraction, and isotopic analysis of water in the Critical Zone to study vegetation water use

Ceperley, Natalie; Gimeno, Teresa E; Jacobs, Suzanne R; Beyer, Matthias; Dubbert, Maren; Fischer, Benjamin; Geris, Josie; Holko, Ladislav; Kübert, Angelika; Le Gall, Samuel; Lehmann, Marco M; Llorens, Pilar; Millar, Cody; Penna, Daniele; Prieto, Iván; Radolinski, Jesse; Scandellari, Francesca; Stockinger, Michael; Stumpp, Christine; Tetzlaff, Dörthe

doi:10.5167/uzh-262901

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Ceperley, N., Gimeno, T. E., Jacobs, S. R., Beyer, M., Dubbert, M., Fischer, B., Geris, J., Holko, L., Kübert, A., Le Gall, S., Lehmann, M. M., Llorens, P., Millar, C., Penna, D., Prieto, I., Radolinski, J., Scandellari, F., Stockinger, M., Stumpp, C., … Rothfuss, Y. (2024). Toward a common methodological framework for the sampling, extraction, and isotopic analysis of water in the Critical Zone to study vegetation water use. Wiley Interdisciplinary Reviews: Water, 11, e1727. https://doi.org/10.1002/wat2.1727

Abstract

The analysis of the stable isotopic composition of hydrogen and oxygen in water samples from soils and plants can help to identify sources of vegetation water uptake. This approach requires that the heterogeneous nature of plant and soil matrices is carefully accounted for during experimental design, sample collection, water extraction and analyses. The comparability and shortcomings of the different methods for extracting water and analyzing isotopic composition have been discussed in specialized literature. Yet, despite insightful c