The aim of this study was an appraisal of the anthropogenic impact of a quad motocross track on the complex of the psammophilic grasslands, mainly the spectrum of types between Spergulo-Corynephoretum, Diantho-Armerietum and Arrhenatheretum elatioris. Changes that have occurred in the altered area and in the undisturbed fragment were compared using multivariate methods. In the track area, reduction in abundance and decline of occurrence, of the species characteristic of psammophilic grassland, was observed, as was the decline of total floristic diversity. In their place meadow species appear and the proportion of Arrhenatherum elatius is significantly increased. The results show that, in the short term, this method of utilization has negative impact on the sandy grassland.
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