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In this paper, the trend of changes in the surface of forests created by natural succession, artificial establishment and combined in the area of Altai (Russian Federation) was investigated.The method of time series analysis for the period 2019-2023 was used.The obtained dispersion measures show that the linear trend model is representative.A trend of increasing the area under forest by an average of 368.5 hectares per year was determined as a result of afforestation and natural progressive succession of vegetation.The area of actually established forests in the analyzed period was larger than planned each year (7237 ha/year), and individual growth rates show an increase in new forest areas.The success of afforestation with white pine seedlings expressed by area in all years of the analyzed period was above 50%.However, in these areas, the success of afforestation with white pine seedlings shows a negative trend, i.e. a decrease of 58.2 ha/year.
SHTYREVA et al. (Sun,) studied this question.