Assessment of natural regeneration of Larix sibirica Ledeb. on the urban areas of the Kola North

The results of estimating the natural renewal and reproductive capacity of the dendrointroducent Larix sibirica are given in the article. The condition of the undergrowth and the conditions of its growth at the sites of urban greening in the three cities of the region (Apatity, Monchegorsk, Kirovsk) was studied in the course of the study. Cities are characterized by different man-made loads. The ecological state of the environment of the cities of the Kola North is composed of the activities of city-forming industrial enterprises and environmental pollution by road transport. To create landscape landscapes in urban areas, research and selection of resistant species of woody plants is necessary. It was revealed that the mass seed renewal of this introducent began in the last decade. Larix sibirica is one of the most enduring species introduced into the Kola North. Its adolescence is found in open spaces and under the canopy of deciduous species (Betula pendula Roth and Betula pubescens Ehrh., Salix caprea L., Populus tremula L.), completely absent directly under the crowns of uterine trees. The largest number of adolescents is noted at a distance of up to 50 m from the parent trees, the maximum possible propagation distance is 100 m. Plants that are less than 10 cm high and up to 25 cm predominate, higher plants are less common. In this case, the state of the prevailing categories of height is defined as satisfactory, on the contrary, it is much better for a large adolescent. Laboratory germination ranges from 0 to 11%. The field germination is estimated from 0 to 5%. Based on the findings, it can be concluded that Larix sibirica is a successfully renewable species on the urbanized territories of the Kola Peninsula and its reproductive capacity is crucial for the continued existence and creation of sustainable landscapes.