Articles | Volume 23, issue 4
https://doi.org/10.5194/hess-23-2129-2019
https://doi.org/10.5194/hess-23-2129-2019
Research article
 | 
26 Apr 2019
Research article |  | 26 Apr 2019

Unexplained hydrogen isotope offsets complicate the identification and quantification of tree water sources in a riparian forest

Adrià Barbeta, Sam P. Jones, Laura Clavé, Lisa Wingate, Teresa E. Gimeno, Bastien Fréjaville, Steve Wohl, and Jérôme Ogée

Download

Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (further review by editor) (27 Mar 2019) by Lixin Wang
AR by Lorena Grabowski on behalf of the Authors (11 Apr 2019)  Author's response
ED: Publish as is (11 Apr 2019) by Lixin Wang
Download
Short summary
Plant water sources of a beech riparian forest were monitored using stable isotopes. Isotopic fractionation during root water uptake is usually neglected but may be more common than previously accepted. Xylem water was always more depleted in δ2H than all sources considered, suggesting isotopic discrimination during water uptake or within plant tissues. Thus, the identification and quantification of tree water sources was affected. Still, oxygen isotopes were a good tracer of plant source water.