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Water uptake by plants: perspectives from stable isotope composition
Author(s) -
EHLERINGER J. R.,
DAWSON T. E.
Publication year - 1992
Publication title -
plant, cell and environment
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.646
H-Index - 200
eISSN - 1365-3040
pISSN - 0140-7791
DOI - 10.1111/j.1365-3040.1992.tb01657.x
Subject(s) - stable isotope ratio , riparian zone , xylem , isotope , environmental science , isotopes of oxygen , ecology , water use , environmental chemistry , chemistry , biology , botany , habitat , physics , quantum mechanics , nuclear chemistry
Stable isotope studies of hydrogen and oxygen stable isotope ratios of water within plants are providing new information on water sources, competitive interactions and water use patterns under natural conditions. Variation in the utilization of summer rain by aridland species and limited use of stream water by mature riparian trees are two examples of how stable isotope studies have modified our understanding of plant water relations. Analyses of xylem sap and tree rings have the potential of providing both short‐term and long‐term information on plant water use patterns.