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By means of floristic and phytocoenological methods a detailed description of the flora and vegetation of a geographically differentiated territory is made. The object of the investigation is the natural reserve Kamenshtitza and the adjacent territories in Eninska river basin on the southern macro-slope of Central Stara Planina Mountain. The results of the investigation show a diversity of 716 species and subspecies of higher plants, belonging to 334 genera and 79 families. The vegetation is classified according to Braun-Blanquet methodological approach. A classification scheme (synopsis) is created. It shows the distribution of 7 classes, 7 orders, 9 alliances, 6 associations and 3 groups of communities. One new - Campanulo abietinae-Lerchenfeldietum flexuosae ass. nova, and one provisional association - Jovibarbo heuffelii-Potentiletum rupestris ass. prov. are proposed. On the basis of species composition and ecological characteristics of the classified plant units the habitats according to EUNIS are defined and mapped by using a map basis in a scale 1:25 000. By the use of modern geo-informational methods a thematic map of the habitats is generated in GIS environment. The map illustrates high habitat diversity for the small area of the investigated region. By the use of literature data about climate and anthropogenic influence and the results of the terrain some hypotheses for the succession processes in vegetation are expressed. These are the tendency of timberline rising, the results of the anthropogenic influence on the oak forests and fragmentation of habitats caused by the anthropogenic structures. Concrete proposals for the future management of the territories are made.
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