Research for the development system of inventory, classification, appreciation and mapping of rangelands in the Mt. Menikio of Drama for the determination of productivity

The grazing forest areas (rangelands) in the mountainous area of Menikio in the Prefecture of Drama have been inventoried with the use of Geographic Inforrnation Systems (G.I.S .) and orthophotomaps. The possibilities of G.I.S. have been exploited (digitazation of maps, creation and development of topology, data base update, multitemporal update of maps, etc) and new thematic maps have been created based on the inforrnation that exists in the ( digital) data base. The results of the inventory of the rangelands are presented on color maps at a scale 1 :20.000, where the different types, series, and subtypes are appeared. The G.I.S. can be a useful tool for the inventory ofrangelands.