The article is devoted to the identification of biotope diversity. There were surveyed the oak forests grown on the
steep ravine slope near the Severskiy Donets River (the Don basin) within the area of National Park
"Homolshansky lisy" (Kharkiv region, Ukraine). Study of spatial heterogeneity of herbage cover structure allowed
distinguishing statistically significantly the seven types of multi-species mosaics on the coenotical level, which are
characterized by specific ecology-phytocoenotical specificity. Such types form coenotical, hygrogen-edaphogenic
and climatogenic series of substitution reflected the habitat diversity of surveyed area (as markers of habitat) and
were in accord with the typology units of forests in Ukraine. In this paper there were used methods of
phytoindication, indirect ordination, and non-parametric correlation analysis
