DISTRIBUTION OF RARE VASCULAR PLANT SPECIES IN THE OF THE SYROVATKA RIVER BASIN (SUMY REGION)

Abstract

The article is devoted to the problem of studying the state of populations of rare vascular plant species found in the basin of the Sirovatka River (Sumy region). The relevance of research is due to the need to inventory the species composition of rare plant species, to determine their conservation status, which is a prerequisite for the protection and preservation of species. As a result of surveys of the territory, which were carried out during 2001–2021, it was established that natural plant groups on significant areas of the territory were completely destroyed, and on those that remained, there was an impoverishment of plant species and population diversity. It should be noted that nowadays a significant part of the research area is in the zone of hostilities caused by russia’s military aggression, and this has a negative effect on the ecosystems of this region. In the course of the conducted research, populations of 17 species of rare plants were found within the territory of the Syrovatka river basin. Among them, 16 species are listed in the Red Data Book of Ukraine – Adonis vernalis L., Allium ursinum L., Astragalus dasyanthus Pall., Dactylorhiza incarnata (L.) Soo s.l., Epipactis helleborine (L.) Crantz., Iris pineticola Klokov, Fritillaria ruthenica Wikstr., Lilium martagon L., Listera ovata (L.) R. Vg., Neottia nidus-avis (L.) Rich., Platanthera bifolia (L.) Rich., Platanthera chlorantha (Cust.) Rchb., Pulsatilla patens (L.) Mill. s.l., Salix myrtilloides L., Stipa capillata L., Stipa pennata L. Among them, two species are included in Resolution 6 of the Berne Convention and two – in the European Red List of Vascular Plants. These plants can be attributed to the category of special values for preservation, which require protection and balanced use of both these species themselves and the complex of biocenosis in the territory of their distribution. The conducted analysis showed that 12 species of plants grow outside the territory of the objects of the nature reserve fund. For the purpose of more guaranteed preservation of the rare species found in the research area and implementation of practical measures to reproduce their resources, we consider it expedient to expand the territories of protected forest tracts and transfer them to the category of botanical natural monuments of local importance.