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EN
A phytosociological method further to Braun-Blanquet was used for the evaluation of the floristic composition of grass surfaces of 10 sports fields in the autumn of 2000 and the spring of 2001. Degrees of quantity and constancy, cover coefficicnts, number of species in a record and sward compactness were studied. Some chemical propertics of the upper soil layer of the sports fields studied was also assessed. Species from the tread-on habitats from the Plantaginetea maioris class and the ” fresh” habitats from the Molinio-Arrhenatheretea class together with ruderal-nitrophylic plants from the Artemisietea class and companion species were predom inant in the sward of the sports field lawns. Lolium perenne was the most frequently sown species in the sports lawns, and Poa pratensis was less frequent. Among the unsown species, Poa annua was distinguished by its high contribution in the sward. Chemical properties of the upper soil layer of the sports fields studied showed that neither the treatments applied nor fertilisation was appropriate.
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