T. MARUȘCA1,2, C.Gh. PĂȘCUȚ2
An important role in elaborating the pastoral arrangements and thus contribute to the sustainable management of the permanent grasslands is played by the outline of the grassland phytocenoses along with the evaluation of productivity (forage production and quality). Having at our disposal the phytocenological classification of the grasslands from Codru-Moma Mountains, their productivity was evaluated according to a new method, based on a floristic survey. The pre-mountain and mountain grasslands located between 300–900 m altitudes have an average production of 8.21 t/ha green mass production (GM) and a pastoral value (PV) of 47 (medium), with very big differences between the vegetation associations. The highest production of 18.3 t/ha GM and 85 PV is found in As. Trifolio repenti-Lolietum and the lowest of 0.7 t/ha GM and 7 PV in As. Clinopodium – Pteridietum aquilini. The final evaluation of the productivity expressed in cow’s milk per hectare in the grazing season (160–175 days) highlighted the Cynosurion and Phalaridion arundinacea Alliances with 3300–3800 liters per hectare. The lowest milk productions of 200–700 liters per hectare were evaluated at the Trifolion medii and Potentillo-Nardion alliances. On average, the grasslands found in the study area showed to be quite valuable, ensuring a production of over 2000 liters of milk per hectare in an optimal grazing season.
Keywords: mountain grasslands, green mass production, pastoral value, milk production