PLANT COVER OF THE LOCAL LANDSCAPE RESERVE «HARIACHYI URBAN» (CHERNIVTSI CITY)

Abstract

The results of the studies of forest communities on the local landscape reserve «Hariachyi Urban» (Chernivtsi city) are presented. It was established that forest vegetation divided into 2 alliances, and 2 orders of the class Carpino-Fagetea sylvaticae Jakucs ex Passarge 1968. These communities represent 2 habitat types from the Annex I of the Habitats Directive: 9130 Asperulo-Fagetum beech forests and 9170 Galio-Carpinetum oak-hornbeam forests, and 2 biotope types from the Resolution 4 of the Bern Convention: G1.6: Beech forests (Fagus woodland) and G1.A1 Quer-cus – Fraxinus – Carpinus betulus woodland on eutrophic and mesotrophic soils, respectively. Also, coenoses men-tioned in the «Green Book of Ukraine» (2009), e.i. common oak forests (Querceta roboris) with common ivy (Hedera helix) domination, are presented here. So, it confirms an important role of this local reserve for biodiversity conserva-tion. According to the literature and herbaria (CHER) data, since the 2nd half of the 19th century, 18 rare plant species listed in the «Red Data Book of Ukraine» (2009) were noticed for this area. For 13 species, the current localities have not been confirmed. Among them, 8 species were associated with grassland, that have not been preserved here, and 5 species were sylvatic. During the last 50 years, 5 plants species from the «Red Data Book of Ukraine» (2009) have been found on the studied area, and only 3 species were confirmed in this study. In studied plant communities, 8 alien plant species were noticed, which indicate the increasing of adventitization rate. Therefore, changes in forest plant communities can be traced in direction of the disappearance of rare plant spe-cies caused by the destruction of landscapes, fragmentation and degradation of preserved natural biotopes, and in-tensification of recreational activity. In addition, increasing of the synanthropization rate and expansion of alien plant species, including species with a high invasive potential, are observed. The initiated inventory studies of the floristic and coenotic diversity in the local reserve will serve as the basis for organizing its phytodiversity state moni-toring.