Szukana fraza: [Abstract = "Floristic wealth of the examined communities was also assessed. The isolated communities in the examined area were allocated, primarity to Molinio\-Arrhenatheretea, Phragmitetea classes, while small areas were occupied by patches belonging to Nardo\-Callunetea and Epilobietea. The performed analysis of floristic surveys indicates changes occurring in the plant cover of grass communities in the wake of changing site conditions. These changes lead to the disappearance of natural communities but, at the same time, favour plant community diversification."]