Biologia plantarum 54:366-368, 2010 | DOI: 10.1007/s10535-010-0065-4

Tree water dynamics non-destructively assessed through sap flow measurements and potential evapotranspiration

R. Bequet1,*, J. Čermák2, N. Nadezhdina2, C. De Canniere3, R. Ceulemans1
1 Department of Biology, University of Antwerp, Wilrijk, Belgium
2 Mendel University of Agriculture and Forestry, Brno, Czech Republic
3 Ecole Interfacultaire de Bioingénieurs, Université Libre de Bruxelles, Bruxelles, Belgium

Sap flow and potential evapotranspiration rates were analyzed for two coniferous tree species (Douglas-fir and Scots pine) and one broadleaf species (sessile oak) in a mixed Carpineto-Quercetum forest during the growing season 2005. The relationship between sap flow and potential evapotranspiration rates, effective crown area as a measure of the relative transpiration and daily relative proportion of the storage water used for transpiration were used as indicators of the tree water dynamics. These indicators were determined on four consecutive days and all three showed good reliability concerning tree water dynamics.

Keywords: Quercus petraea; Pinus sylvestris; Pseudotsuga menziesii; transpiration rate; water balance; water deficit
Subjects: Douglas fir; evapotranspiration; oak; pine; Pinus sylvestris; Pseudotsuga menziesii; Quercus petraea; water relations, daily variations; water storage; water stress; water transport

Received: June 30, 2008; Accepted: March 2, 2009; Published: June 1, 2010Show citation

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Bequet, R., Čermák, J., Nadezhdina, N., Canniere, C., & Ceulemans, R. (2010). Tree water dynamics non-destructively assessed through sap flow measurements and potential evapotranspiration. Biologia plantarum, 54(2), 366-368. doi: 10.1007/s10535-010-0065-4.
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