Wpływ wzniesienia nad poziom morza i podłoża geologicznego na produkcyjność siedlisk Beskidu Żywieckiego dla buka

The aim of the study was to determine the effect of topography and parent rock as well as selected characteristics of the soils on the site productivity for European beech in the Beskid Żywiecki Mountains (S Poland). The research material consisted of measurements performed on sample plots ranging in size from 0.01 to 0.10 ha located in 50 beech stands aged 40−140 years. Productivity of beech stands was to the greatest extent determined by the elevation above sea level. The site index of beech stands is significantly affected by the type of geological substrate, whereas there was no relationship between productivity and analyzed soil characteristics.