Bukovi gozdovi hribovja Cerová vrchovina (južna Slovaška)

Field phytosociological research of the Fagus sylvatica dominated forests in the volcanic Cerova vrchovina Mts. was carried out in 2001. Standard methods of the Zurich-Montpellier approach were applied. Tabular synthesis with numerical divisive classification (TWINSPAN) and indirect gradient analysis (PCA) were used to differentiate particular communities. Within the Fagion alliance, four associations were recognized: Carici pilosae-Fagetum, Dentario bulbiferae-Fagetum, Melico-Fagetum and Asperulo-Fagetum. Four different plant communities of the Tilio-Acerion alliance were detected: Roso pendulinae-Tilietum cordatae, Mercurialis perennis-Fagus sylvatica community, Athyrium filix-femina-Fagus sylvatica community and Dryopteris filix-mas-Fagus sylvatica community. Semioligotrophic communities were classified as Luzulo-Fagetum within the Luzulo-Fagion alliance. Influences of several ecological factors on species composition are discussed. The type of relief, stoniness and humus content of topsoil seem to play the most important role.