DENDROLOGICAL COLLECTIONS OF THE KULUNDA CLUSTER FEDERAL RESEARCH CENTER OF AGROECOLOGY

Background. In 2016, the Kulunda Arboretum was given the status of a specially protected natural area of federal significance. A long-term array of data on the introduction potential of woody plants in collections forms the basis for regulating introduction work and increasing the efficiency of mobilization of economically important plants. Purpose – assess the current state of bioresource collections of the Kulunda Arboretum. Materials and methods. The objects of the study are the gene pool of the Kulunda Arboretum - 137 species, forms and hybrids. Clarification of the taxonomic composition of the gene pool of the collections and generalization of experimental inventory data (age, preservation, taxation parameters, viability, renewal) was carried out with the involvement of departmental materials and databases. Results. The taxonomic composition of the collections, the age, safety, taxation and reproductive indicators of the introduced species has been specified. An analysis of the natural ranges of introduced woody plants revealed the predominance of representatives of the European (28%) and North American (19%) dendroflora. The ratio of the collection fund in terms of vitality indicators is given. It was revealed that 31,9% of plants are in good condition and promising for involvement in programs for the conservation and rational use of biological diversity. On the basis of a long-term study of plants and the experience of their introduction (since 1977), a group of tree species capable of invasive dispersal outside the collection areas of the Kulunda arboretum was identified. Conclusion. Based on the inventory of collection areas of the Kulunda Arboretum, the composition of trees and shrubs was clarified (137 taxa, 52 genera, 24 families) and ranked according to preservation (from 50 to 100%) and viability (good – 31,9%, satisfactory – 47,2%, unsatisfactory – 22,2% of species). Based on the results of the inventory of arboretum collections, species that may pose an invasive threat were identified. A natural decline of species from collections is predicted, which determines the relevance of the task of preserving the gene pool of adapted introduced species by introducing them into forest reclamation complexes. Sponsorship information. The research was carried out within the state assignment of Ministry of Science and Higher Education of the Russian Federation (theme No. 121041200195-4).