PECULIARITIES OF SEASONAL GROWTH OF TWO- AND FIVE-NEEDLE PINES IN THE CITY OF OMSK
E. V. Zheltikova, A. I. Grigor’ev
Omsk State Pedagogical University, Omsk, Russian Federation
Keywords: seasonal growth of shoots, hydrothermal regime, air environment, Gossen-Walter climate diagram, synchronicity coefficient, correlation ratio, correlation coefficient
Abstract
The intensity and duration of vegetative growth of plants determines their biological productivity, which in turn depends on various environmental factors and the climatic conditions of the growing region. Therefore, identifying patterns of seasonal growth in coniferous trees is essential for determining the type and timing of measures aimed at increasing the productivity of forest stands, especially in regions of introduction. Since research data are scarce in the south of Western Siberia and are of interest for generalizing the results of introduction, the aim of this study was to identify patterns of seasonal growth of two- and five-needle pine species of the genus pines ( Pinus L.) within the residential area of the city of Omsk. This article examines the climatic conditions of Omsk during the seasonal shoot growth period of model trees and constructs a climatic diagram of the G. Walter modification according to Bagnoul-Gossen for April-June 2024 and 2025. A study based on data from the Omsk Hydrometeorological Center examined the dynamics of seasonal shoot growth in two-needle pine trees: mountain pine ( Pinus mugo Turra), Scots pine ( Pinus sylvestris L.) and jack pine ( Pinus banksiana Lamb.), and five-needle pine trees: white pine ( Pinus strobus L.) and Siberian stone pine ( Pinus sibirica Du Tour).
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