CURRENT STATE OF THE VEGETATION COVER OF LAKE BASIV KUT AND THE SURROUNDING AREA AND IT’S SYNDYNAMICS (RIVNE)

Abstract

Lake Basiv Kut and the Ustya River are the main hydrological objects and the most important centers of formation of the urboecosystem of the city of Rivne. These facilities, together with the adjacent territory, greatly affect the general ecological condition of the city. The current state of vegetation reflects the ecological situation in the city and counteracts the anthropic load. The results of the study of the current state of vegetation of Lake Basiv Kut and the adjacent territory in the city of Rivne are presented. Identified the most common plant communities: water (associations Ceratophylletum demersi, Potametum pectinate, P. crispi, Lemnetum minoris), coastal waters (ass. Caricetum elatae, Caricetum vesicariae, C. acutiformis, Carici acutae-Glycerietum maximae, Glycerietum maximae, Phragmitetum australis, Typhetum angustifoliae, Myosoto aquatici-Bidentetum frondosae), marsh (ass. Phragmitetum australis, Caricetum vesicariae, C. acutiformis, Typhetum latifoliae, Caricetum hirtae) and tree-shrubs (ass. Euonymo-Cornetum sanguineae, Salicetum cinereae). Descriptions of meadow groups on 3 sections of the floodplain lake are presented. A decrease in water thickets with the participation of Elodea canadensis, intensive increase in phytocenotic role of local synanthropic (Urtica dioica, Cirsium setosum, Equisetum arvense) and individual adventitious plants (Bidens frondosa, Echinocystis lobata, Solidago canadensis, Lactuca serriola). grassland vegetation characterized by a high level of anthropic transformation and accompanied by increased participation synanthropic plants. Rare species of flora were found in the vegetation: Dactylorhiza incarnata, Allium ursinum (Red Data Book of Ukraine, 2021), Nymphaea candida, Hypericum tetrapterum, Inula helenium, Salix myrsinifolia, Vicia grandiflora, Hedera helix, Scilla bifolia (species of protection of regional, 2018).