Abstract
The study presents a synthesis of floristic-sociological investigations of maple-linden slope forests of the Aceri-Tilietum association, occuring in North-Eastern Poland. Field research was carried out in 97 forest objects, in which 350 phytosociological releves and 14 measures of the biological structure of tree-stands were collected. Also, 209 literature releves were employed. Three subassociations, eight variants and two geographical races were distinguished. Habitat estimates were carried out with the ELLENBERG (1974) bioindication method. Also, the present state of legal protection of Aceri-Tilietum in that area is presented and attention is directed to necessary requirements in that field.
Keywords
North-Eastern Poland; Carpinion betuli alliance; Aceri-Tilietum association; habitat and geographical variability; bioindication; nature protection