Fernanda Valente, Institut Superior d'Agronomia, Universidade Técnica de Lisboa, Portugal
Conferència organotzada conjuntament CSIC-UB
Divendres, 24 de novembre a les 12h, a la Sala d'Actes de l'Institut Jaume Almera

Comentaris:
Since 1992, several studies were carried out on rainfall interception from stands of the main Portuguese forest species (pine, eucalypt, cork and holm oak). First, measurements and modelling of interception loss from two adult stands of Pinus pinaster and Eucalyptus globulus in central Portugal werw compared (1992-1994). results showed that interception loss was higher in pine than in eucalypt and that the original Rutter and Gash models overstimated (by more than 29%). To improve the description of rainfall interception from sparse forests, the Rutter model was reformulated. This new sparse model version greatly improved the accuracy of the simulation for both forests, resulting in estimates of interception loss within 3% of measured values. Between 1996 and 1998, another study was carried out in an isolated evergreen holm oak tree in a savannah-type woodland in southern Portugal.