Plant communities ground cover digression of recreational sites in Valday National Park

The article presents the results of a study of the influence of recreational pressure on the ground cover of forest communities in the Valday National Park. The comparison of trial plots with different degrees of recreational pressure in terms of species composition, abundance of species and the ratio of ecological cenotic groups of plants is given. The bioindicator species of recreational digression were identified in the studied areas. The most resistant species of herbaceous plants (anthropotollerants) (Plantago major L., Poa annua L.) were identified on the taste areas. The stages of recreational digression on the tasted areas were determined. The main factors of anthropogenic impact оn the ground cover are presented. The dependence of the species composition of the ground cover on the сrown density was identified. The options of conservation of the ground cover were suggested. The recommendations for the restoration of plant communities of recreational areas with a high stage of digression were given.