Agriculture and forestry

Prokopchuk Valentina – candidate of Biological Sciences, аssociate рrofessor of the Department of Forestry, Landscape Gardening, Horticulture and Viticulture of Vinnytsia National Agrarian University (21008, Vinnytsya, Soniachna St. 3 e-mail: prokopchuk@vsau.vin.ua).

Matusiak Mikhailo – candidate of Agricultural Sciences, аssociate рrofessor of the Department of Forestry, Landscape Gardening, Horticulture and Viticulture of Vinnytsia National Agrarian University (21008, Vinnytsia, Soniachna St. 3., e-mail: mikhailo1988@gmail.com).

Pankratiev Yuriy – director of the KP Dendrological Park «Ladyzhyn Wood» (24321, Ladyzhyn, P. Kravchik St., 4. e-mail: dendropark3802@gmail.com).

Yelisavenko Yurii – researcher of SE «Vinnytsia Forest Research Station» (21036, Vinnytsia, Maksimovicha st., 39. e-mail: yelis2009@ukr.net).

The floristic analysis of the low-frequency ornamental species of the arboretum «Ladyzhyn Dendropark» was carried out, according to which the taxonomic composition and the description of the investigated species of the arboretum were determined. Based on the results of the integrated numerical assessment of the viability of trees and shrubs based on visual observations, the prospects for the introduction of woody plants in the study region were evaluated. The species composition of the introduced ornamental plants of the arboretum is systematized, which today is more than 25 species, arranged in accordance with the formed dendroplan. The peculiarities of the introduction of low-abundant ornamental plants were investigated, and the inventories of native and introduced arboreal and shrub vegetation of the areas of the arboretum were conducted. Based on these studies, a dendroplan was developed for a dendrological park of the local importance.

The age and quantitative structure of the plantations has been determined, according to which 21 composite areas have been created in the studied area of more than 10 ha. In the course of research it is determined that 9 species of plants are quite promising (Catalpa speciosa Warder., Nyssa sylvatica Marsh, Gymnocladus dioicus (L.) K.Koch, Liriodendron tulipifera L., Magnolia kobus DC., Liquidambar

styraciflua L., Malus sieboldii, Pseudotsuga menziesii (Mirb.) Franco, Ginkgo biloba L. Betula nigra L); promising – 10 species (Zelkova serrata (Thunb.) Makino, Stephanandra incisa (Thunb.) Zabel, Koelreuteria bipinnata Franch., Magnolia soulangeana Soul, Rhus typhina L., Catalpa bignonioides, Chamaecyparis pisifera (Siebold & Zucc.) Endl., Malus «Evereste», Malus domestica «Rajka», Diospyros virginiana L.), less promising – 5 species (Paulownia tomentosa (Thunb.) Steud., Cercis siliquastrum L., Magnolia George Henry Kern, Coffea liberica (W. Bull ex Hiern), Magnolia acuminata L.) The low adaptive index of the last 5 species is related to the inconsistency of the temperature regime in the study conditions.

Inventory of the assortment of 20 shrubs and arboretum plants was made and a design decision was made to increase the species and form content of arboretum of section No. 21. The current state of compositions and flower beds of the arboretum was analyzed and recommendations for their improvement on the principle of selection and placement of species were presented.

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