Articles | Volume 26, issue 15
https://doi.org/10.5194/hess-26-4125-2022
https://doi.org/10.5194/hess-26-4125-2022
Research article
 | 
08 Aug 2022
Research article |  | 08 Aug 2022

Isotopic offsets between bulk plant water and its sources are larger in cool and wet environments

Javier de la Casa, Adrià Barbeta, Asun Rodríguez-Uña, Lisa Wingate, Jérôme Ogée, and Teresa E. Gimeno

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Latest update: 17 Nov 2024
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Short summary
Recently, studies have been reporting mismatches in the water isotopic composition of plants and soils. In this work, we reviewed worldwide isotopic composition data of field and laboratory studies to see if the mismatch is generalised, and we found it to be true. This contradicts theoretical expectations and may underlie an non-described phenomenon that should be forward investigated and implemented in ecohydrological models to avoid erroneous estimations of water sources used by vegetation.