Dynamics of mown meadows in the hinterland of the Province of Macerata (Central Italy)
Hruška, K.; Maggi, C.
A study has been made of the dynamics of the Pian di Pieca mown meadows in the Sarnano area (Province of Macerata). These are subjected to rotation and alternate every five years with wheat and oat crops. The meadow regrowth prevalently occurs through the seed bank in the soil and through the dispersion of seed from the more mature plots of the surrounding meadowlands, with the addition by man of Medicago sativa and Lolium multiflorum seed in the first year. The floristic, phytosociological and ecological analyses of the meadowlands belonging to five different age classes, each of which corresponds to a vegetative period, has evidenced a particular dynamic. An increase has been noted in the presence of Molinio-Arrhenatheretea class species concurrently with the age of the individual meadow plots. The colonization of the cultivated areas and the diversity, at first slowed down by abundant development of the sown species, become more accentuated in the last three years of meadow cultivation. Using the Landolt indices and experimental data obtained in the laboratory, information is got on the ecological conditions of the zone.