Zbiorowiska seminaturalne z rzędu Arrhenatheretalia klasy Molinio-Arrhenatheretea występujące na terenie byłej Akademii Rolniczej w Szczecinie przy ulicach J. Słowackiego i Papieża Pawła VI

Abstract

Phytocenoses of Arrhenatheretalia order are representative in the investigated area for 46 vegetation patches classified into the complex of Arrhenatheretum elatioris and into the community of Poa pratensis-Festuca rubra. Arrhenatheretum elatioris complex is most frequently found on warm and dry small slopes situated in different places of the studied area, on moderately compact soils of alkaline reaction. The most species in the complex are representative for Molinio-Arrhenatheretea class (32 taxa), and some of them, Poa pratensis and Festuca rubra, reach a facial form in some vegetation patches. The structure of Arrhenatheretum elatioris complex has a character of a temporary community referring to phytocenoses of Artemisietea vulgaris class, which is represented by 30 taxa, of which Urtica dioica and Chelidonium majus reach a rank of facies in a part of patches. The vegetation patches in which Arrhenatherum elatius occurs were classified into Poa pratensis-Festuca rubra community. It also settles down on exposed to the sun and dry slopes of small hills, but it is also found on flat sheltered areas. Like in the previous complex, in the structure of this community the species characteristic of Molinio-Arrhenatheretea (27 taxa) and Artemisietea vulgaris (24 taxa) class are dominating. The structure of both seminatural communities found mainly in meadow habitats has a temporary character in the investigated area. A considerable number of species from Molinio-Arrhenatheretea class is a result of the activity of human being who introduced into the investigated area organic soils taken from meadows, containing reproductive organs of these species.