HYDROGEN ISOTOPE;
OXYGEN ISOTOPE;
GROUND WATER;
WATER USE;
WATER-USE EFFICIENCY;
WATER RELATIONS;
D/H;
O-18/O-16;
D O I:
10.1111/j.1365-3040.1992.tb01657.x
中图分类号:
Q94 [植物学];
学科分类号:
071001 ;
摘要:
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.
机构:
Univ Calif Santa Cruz, Dept Earth & Planetary Sci, 1156 High St, Santa Cruz, CA 95064 USAUniv Calif Santa Cruz, Dept Earth & Planetary Sci, 1156 High St, Santa Cruz, CA 95064 USA
Koch, Paul L.
Fox, Laurel R.
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机构:
Univ Calif Santa Cruz, Dept Ecol & Evolutionary Biol, 1156 High St, Santa Cruz, CA 95064 USAUniv Calif Santa Cruz, Dept Earth & Planetary Sci, 1156 High St, Santa Cruz, CA 95064 USA