Home – Home – Jornals – Siberian Journal of Forest Science 2024 number 4

Given the importance of Scots pine ( Pinus sylvestris L.) for forestry in the European part of Russia, it is necessary to have tools that allow one to make informed decisions on managing the forest growing process and planning forest use. The aim of the study is to develop a dynamic model of the growth and productivity of pine forest stands in the European part of Russia using data from repeated observations on permanent sample plots. The data used in the study are represented by 99 permanent sample plots in natural pine stands in the European part of Russia, observations of which were carried out from 1862 to 2023. The growth and productivity model of stands consists of separate equations for the dependence of the average height, average diameter and number of growing trees on the initial and final ages and initial values of the corresponding stand indicators and the dependence of the average form height on the average height of the stand. The model developed in the study provides forecasting of stand indicators within the accuracy established by the Forest measurement instructions, providing a confident forecast for an average period of 9 years. The average absolute percentage of error for average heights, diameters and form heights does not exceed 5 %, and for the number of trees, the stand basal areas and stand volume does not exceed 15 %. The developed model can serve as an alternative to traditional course growth tables in the design and justification of forestry activities, in the inventory of forests using the updating method, as well as for making management decisions when managing pine forests. In combination with additional equations, it can be used to predict the carbon sequestration potential of pine stands.