La Houille Blanche
Number 3, Juin 2002
|Page(s)||18 - 23|
|Published online||01 July 2009|
Fonctionnement hydrique et hydraulique des arbres forestiers
Water relations in forest trees
INRA, Institut National de la Recherche Agronomique, Centre de Nancy, UMR Ecologie et Ecophysiologie Forestières, 54280 Champenoux Tél: 03 83 39 40 38, Fax: 03 83 39 40 69
Auteur de correspondance : firstname.lastname@example.org
After a brief recall of biophysical mechanisms governing transpiration and sap flow in trees, some typical examples of time-course of tree transpiration are presented. Major sources of variation in tree transpiration are shown : among trees within a forest stand, between tree species. Temporal variation is linked to tree phenology and to water shortage inducing xylem dysfunction (cavitation and embolism).
© Société Hydrotechnique de France, 2002
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