Response of Eucalyptus grandis trees to soil water deficits
Open Access
- 1 January 1996
- journal article
- Published by Oxford University Press (OUP) in Tree Physiology
- Vol. 16 (1-2) , 233-238
- https://doi.org/10.1093/treephys/16.1-2.233
Abstract
The use of potential transpiration models to simulate transpiration rates in areas prone to soil water deficits leads to overestimates of water use as the soil dries. Therefore, I carried out studies on Eucalyptus grandis W. Hill ex Maiden trees subjected to soil drying at two field sites in the Mpumalanga province of South Africa to determine the relation between transpiration rate and soil water availability. I hypothesized that, with this relationship defined, simple modeling of the soil water balance could be used to predict what fraction of potential transpiration was taking place at a given time.Keywords
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