GENERAL CHARCTERIZATION OF THE TREES FROM THE PRODUCTION UNIT No. V-DEJ(CLUJ COUNTY) WITH A VIEW TO THE ECOLOGICAL RECONSTRUCTION OF THE ZONE

The thesis presents aspects concerning the general characterization of the arboreta from the production unit No. V Dej with a view to establishing the species that will be used within the process of ecological reconstruction of the degraded fields in the area. The structure according to species of the trees was determined, the age, the consistency, the production classes , the phytosanitary state as well as the structure of the under arboreta and of the herbaceous forest. The level of forestry vegetation is FD2 and FD1.The main natural types of forests within the production unit V Dej are the common oak grove and the oak grove. Varying with their consistency : 88.3% almost full, 8.8% full consistency, 2.6% with thinned out consistency, 0.3% with degraded consistency. The largest share is taken by the III rd class of production, followed by the IV th and the II nd class and with a smaller percentage by the V th class. There is no arboretum of the I st class of production. The under arboretum is made up of the following species: wild rose,hazel nut,hawthorn,cornel tree,privet,common elder,sloe tree