THE ASSOCIATION FRAXINO ANGUSTIFOLIAE-QUERCETUM PEDUNCULIFLORAE CHIFU ET AL. 1998, FROM THE RIVER SUCEAVA BASIN

Abstract

As a result of the researches carried out in 2003 in the river Suceava basin (the forests in the area of Patrauti), we identified phytocoenoses of the association Fraxino angustifoliae-Quercetum pedunculiflorae Chifu et al. 1998. An analysis of their structure and composition made evident the trees relatively even-aged character and various composition, all the layers (arborescent, shrubs, herbaceous) being well represented.The spectre of the bioforms is numerically outshone by hemicryptophytes but dominated by the phanerophytes when it comes to the biomass. Phytogeographically, the European elements are definitely prevalent.The valuev of the overground phytomass of the trees (obtained after surveys on spot) higlight the dominance of the biomass of the stems, followed by that of the branches.

Keywords

• even-aged
• abundance-dominance
• phanerophytes
• hemicryptophites
• Euroasian elements
• overground phytomass.