Abstract
The communities of higher aquatic plants of National Nature Park (NPP) “Pyriatynskyi” have a high level of cenotic diversity, occupy large areas and ensure the sustainability of the ecosystem of the Uday River valley. Their inventory, classification and study of the structure are important for the development of effective protection measures and that is an urgent task of modern botany.
We have investigated the plant communities of Potamion union (class Potametea Klika in Klika et Novak 1941, order Potametalia Koch 1926) on the territory of NPP “Pyriatynskyi” in 2012–2022 by carrying out the geobotanical descriptions within their natural boundaries. Projective coverage was recorded as a percentage with subsequent transformation into points. Their further processing was carried out by the capabilities of the JUICE software package. The nomenclature of syntaxons was consistent with the International Code of Phytosociological Nomenclature.
The results of research showed that Potamion union on the territory of NPP “Pyriatynskyi” is represented by 7 associations: Potametum natantis Hild 1959, Potametum graminei Lang 1967, Potametum lucentis Hueck 1931, Potametum perfoliati Miljan 1937, Elodeetum сanadensis Nedelcu 1967, Potamo pectinati–Myriophylletum spicati Rivas Goday 1967 and Potametum crispi von Soό 1927.
Phytocoenoses of Potametum crispi, Potametum perfoliati, and Potametum natantis associations are the background communities of higher aquatic vegetation, while Potametum graminei and Potametum lucentis are rare in the studied area and do not occupy significant areas. Elodeetum sanadensis community is a reservoir for the spread of an invasive adventive species of North American origin Elodea canandensis with the ability to naturalize in natural ecosystems.
Monitoring of their structure, chorology and dynamics is an important task for maintaining and preserving the species and coenotic diversity of NPP “Pyriatynskyi”.
Publisher
National University of Life and Environmental Sciences of Ukraine
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