[1] Univ Padua, Dept Land & Agroforest Environm, IT-35020 Legnaro, Italy
[2] Ecole Natl Ponts & Chaussees, Champs Sur Marne, Marne Vallee, France
[3] IRD, Lab Etud Transferts Hydrol & Environm, CNRS, INPG,LTHE,UJF,UMR 5564, Grenoble, France
[4] CNR, IRPI, I-35127 Padua, Italy