Ustupující a mizející společenstva svazu Polygonion avicularis na bývalé periferii jihozápadní části Prahy

Syntaxonomical classification of the communities of trampled sites was made using the so called deductive method. The following syntaxa were recorded in the former periphery of the SW part of Prague during 1955-1979 period (see distribution maps): basal commun. Polygonum arenastrum - [Polygonion avicularis, ass. Eragrostio-Polygonetum avicularis, ass. Poo-Coronopetum squamati, ass. Sagino-Bryetum argentei, derivate commun. Poa pratensis - [Polygonion avicularis], basal commun. Bromus mollis - [Bromo-Hordeion murini|Polygonion avicularis] and basal commun. Digitaria ischaemum-sanguinalis-[Panico-Setarion|Polygonion avicularis].