SPECIES COMPOSITSON OF HYDROPHILIC FLORA OF THE FRESHWOTER ECOSYSTEM

Melnyk V. Y. та Tolochyk I. L. (2022) SPECIES COMPOSITSON OF HYDROPHILIC FLORA OF THE FRESHWOTER ECOSYSTEM. SWorldJournal, 2022 (Is.16): P.1. с. 104-114.

Перегляд

Текст Толочик І. Л. Species composition of hydrophilic flora of the freshwater ecosystem.-Копировать.pdf Завантажити (585kB) | Перегляд

Анотація

For the first time geobotanical researches of aquatic and coastal-aquatic vegetation on separate sections of the Styr river were carried out. According to the results of research, 125 species of higher vascular plants from 75 genera and 38 families have been described in the selected taxa. In the species composition of the most common 7 families are: Poaceae (11 genera), Potamogetonaceae (10 genera), Asteraceae (9 genera), Cyperaceae (8 genera), Polygonaceae (8 genera), Ranunculaceae (6 genera), Saliсaceace (6 genera). These species of these families are
46,4%. The following genera are dominant: Potamogeton (9 genera), Salix (6 genera), Juncus, Rumex і Carex (5 species each), 8 genera – adventitious plants, the rest represent the aboriginal flora of Rivnenska oblast. Geobotanical studies have identified 14 plant communities. Coastal￾aquatic vegetation is mainly formed from Glycerietum maximae, Lemnetum minoris, Lemno minoris-Spirodeletum polyrrhiza, Potametum perfoliati, P. рectinati та Sparganietum erecti. The species composition of the lower reaches of the river is especially rich (71,2% of species). The state of populations of 6 rare species is characterized by coenopopulation studies. For the first time in Rivnenska oblast, a highly vulnerable species of Batrachium rionii was found, which is included in
the Red List of aquatic macrophytes of Ukraine. Comparative analysis of different sections of the
river makes it possible to assess the hydrophilic flora, to develop optimal ways to protect rare and
typical plants and their groups.

Необхідні дії (обов’язкова авторизація)

Перегляд елементу