Abstract

From the Pantaleo-M. Arcosu district (SW Sardinia) 14 associations are described, 4 of them (Phagnalo-Psoraleetum morisianae, Helichryso-Teucrietum mari, Pistacio-Juniperetum oxycedri and OsmundoAlnetum Glutinosae) for the first time. Prevailing vegetation types in this area are macchia-associations: in lower parts the Pistacio-Juniperetum oxycedri belonging to the Oleo-Ceratonion, in the higher ones the Asplenio-Quercetum ilicis (Quercion ilicis) a transiction belt, between about 400-700 m asI shows the Vibumo-Quercetum ilicis. Up to the last century, the whole study-area was covered by a dense evergreen mediterranean forest which has been modified and partially destroyed by cutting, fire and intense pasture. Nowadays, due also to the protection actions by regional forest authorithies, the woody species show an increasing vigour and are prevailing again. These associations at present can be interpreted as climaxnear vegetation types.

I documenti depositati in UnissResearch sono protetti dalle leggi che regolano il diritto d'autore