Classification of pine forests on sandy deposits in the Minusinskaya intermountain basin (Southern Siberia)

Classification of pine forests of sandy deposits in the Minisinskaya intermountain basin (southern Siberia) has been performed according to the Braun-Blanquet approach. All communities represent 3 classes, 3 orders, 4 alliances, 4 suballiances, 9 associations and 9 variants. The class Brachypodio pinnati—Betuletea Ermakov et al. 1991 (order Carici macrourae—Pinetalia sylvestris Ermakov et al. 1991) includes associations: Carici shmidti—Betuletum pendulae ass. nova hoc loco, Equiseto sylvaticae—Pinetum sylvestris ass. nova hoc loco, Veronico chamaedrythis—Pinetum sylvestris ass. nova hoc loco, Cimicifugo foetidae—Pinetum sylvestris ass. nova hoc loco. The class Vaccinio-Piceetea Br.-Bl. in Br.-Bl., Siss. et Vlieger 1939 (order Cladonio-Vaccinietalia Kielland-Lund 1967) includes associations: Oxytropido campanulatae—Pinetum sylvestris ass. nova hoc loco, Ptilio crista-castrensis—Pinetum sylvestris ass. nova hoc loco. The class Rhytidio—Laricetea sibiricae Korotkov et Ermakov 1999 includes associations: Artemisio commutatae—Pinetum sylvestris ass. nova hoc loco and Euphrasio pectinatae—Pinetum sylvestris ass. nova hoc loco. Diagnostic features of the higher units and peculiarities of classification approach for vegetation of azonal habitats are discussed.