Dendroflora of the Ivan Kozlovsky memorial estate-museum in Marianivka village, Kyiv region: peculiarities of formation, current state and prospects for conservation

Abstract

Aims. To summarize the results of the inventory of the dendroflora of the memorial estate-museum of I. S. Kozlovsky in the village of Maryanivka, Kyiv region. Methods. The inventory of perennial green plantings was carried out in accordance with the instructional requirements. The names of species and cultivars were verified according to the descriptions given in the three-volume edition of Dendroflora of Ukraine. The diameter of the trunk was measured in two perpendicular directions with an accuracy of 1 cm. The height of the trees was measured with a Nikon Forestri Pro II altimeter with an accuracy of 1 m, and the projection of the crown diameter was measured with a tape measure in two perpendicular directions. The age of the trees was determined taking into account the dates of planting and the size of the trees at the time of the inventory. The sanitary condition of the plants was determined using the scale given in the Sanitary Rules for Forests of Ukraine. Taxonomic analysis of the dendroflora composition was carried out according to the system of A. L. Takhtajan. The life forms of woody plants were determined according to the descriptions of O. A. Kalinichenko and Сh. Raunkiaer.
Results. It was established that the park is dominated by autochthonous tree species. A total of about 800 trees and shrubs belonging to 90 species and cultivars were found on the estate, grouped into 48 genera, 30 families, 26 orders, 6 subclasses, 4 classes, and 3 divisions. In terms of life forms, shrubs predominate — 53.3 %, trees account for 44.4 %, bushes — 2.0 %, and semi-shrubs — 0.3 %. Most trees and shrubs (74.8 %) are in good sanitary condition, 14.5 % are in satisfactory condition, and only 10.2 % are in poor condition. An analysis of the age structure showed that 32.5 % of all woody plants are over 50 years old and are mainly concentrated in the park area; 17.4 % of trees and shrubs are between 16 and 50 years old, and 50.1 % are young plantings under 15 years old. A sozological analysis of the dendroflora composition showed that Taxus baccata L., which is listed in the Red Book of Ukraine and the European Red List, is present in the plantings. Conclusions. The need to protect and preserve memorial trees and the compositional structure of the estate is emphasised, and prospects for further research are outlined.