The thesis represents the results carried out in Redič gozd in Prekmurje on sites overgrown by phytocenosis arrayed into Vicio oroboidi - Fagetum syntaxon. In the five sample plots size of 30 x 30 m stands in optimal phase have been analyzed. In the thesis diameter and hight structure, structure of stands according to the social tree layer and stem quality structure are presented. We carried out the dendro-chronological analysis of 45 beech trees with the intention of ascertaining the diameter and hight growth and presence of red heart. On the basis of site indices it was established that the productivity in the site unity Vicio oroboidi - Fagetum ranges from 10,4 to 11,2 m3/ha/year.