Stable Isotopes of Oxygen in Plants: A Possible Paleohygrometer

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Author
Ferhl, A. M.
Long, A.
Lerman, J. C.
Affiliation
University "Pierre & Marie Curie", Department of Earth Sciences, Paris, France
Laboratory of Isotope Geochemistry, Department of Geosciences, University of Arizona, Tucson
Issue Date
1977-04-16
Keywords
Hydrology -- Arizona.
Water resources development -- Arizona.
Hydrology -- Southwestern states.
Water resources development -- Southwestern states.

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Copyright ©, where appropriate, is held by the author.
Collection Information
This article is part of the Hydrology and Water Resources in Arizona and the Southwest collections. Digital access to this material is made possible by the Arizona-Nevada Academy of Science and the University of Arizona Libraries. For more information about items in this collection, contact anashydrology@gmail.com.
Publisher
Arizona-Nevada Academy of Science
Journal
Hydrology and Water Resources in Arizona and the Southwest
Abstract
Ratios of oxygen-18 to oxygen-16 in cellulose of dated rings from trees grown in nature and from plants grown in controlled environments have significance for retrieving information about the environment in which they grew. Phaseolus vulgaris was grown under varying conditions of controlled temperature, humidity and ¹⁸O/ ¹⁶O of irrigation water. The ¹⁸O/ ¹⁶O in plant tissue responds mostly to different environmental relative humidity; plant tissue grown under conditions of low relative humidity produce tissue relatively high in oxygen-18. Reasons for this response are not clear to us, but the relationship may prove a useful complement to established dendroclimatologic techniques.
ISSN
0272-6106
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