BIOMASS AND THE AERIAL PRODUCTIVITY OF THE ARBORESCENT LAYER OF THE ARO ORIENTALIS - CARPINETUM (DOBRESCU ET KOVACS 1973) T UBER 1991-1992 ASSOCIATION FROM THE VASLUI RIVER BASIN

The hornbeam groves forming the Aro orientalis – Carpinetum (Dobrescu et Kovacs 1973) T uber 1991-1992 association are analyzed both phytocoenologically and from the viewpoint of the biomass and aerial productivity of the arborescent layer it develops. This association achieve a density of 670 trees/ha, a biomass of 340967,47 kg/ha and a productivity of 10470 kg/ha/year.