Taghouti, Ibtissem, University of Carthage, INRGREF, Laboratory of Management and Valorization of Forest Resources. Rue Hédi El Karray El Menzah IV, 1004 Tunis BP 10 Ariana 2080, Tunisia / Center for Agro-Food Economics and Development (CREDA-UPC-IRTA). Parc mediterrani de la tecnologia. Edifici ESAB, carrer esteve terradas 8. Castelldefels 08860, Spain., Tunisia