An incorrect wetness-based correction method for deuterium offset
- aCollege of Resources and Environmental Engineering, Ludong University, Yantai, Shandong 264025, China
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Isotope-based plant–soil water tracing assumes that the isotope signal in the plant xylem does not fractionate (1). However, this assumption has been questioned increasingly in recent years with numerous reports for different plants of deuterium depletion in xylem water, particularly for halophyte and xerophytes (2). Chen et al. (3) go beyond what others have done to date and show how organics linked to the water cryogenic extraction from stem material result in a dynamic exchange between organically bound deuterium and liquid water. They further establish a correction method to challenge previous conclusions of …
↵1Email: yzhaosoils{at}gmail.com.
References
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- L. Zhao et al
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- Y. Chen et al
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- J. Evaristo,
- S. Jasechko,
- J. J. McDonnell
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