DYNAMICS OF THE TYPOLOGICAL STRUCTURE OF THE PINE FORMATION

UDC 630*161.32:630*907.3

Yeroshkina Irina Fedorovna – PhD (Agriculture), Assistant Professor, the Department of Silviculture. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: e_ira@belstu.by

DOI: https://doi.org/10.52065/2519-402Х-2023-270-2-2.

Key words: pine formation, forest type, typological structure, young pine trees, succession.

For citation: Eroshkina I. F. Dynamics of the typological structure of the pine formation. Proceedings of BSTU, issue 1, Foresty. Nature Management. Processing of Renewable Resources, 2023, no. 2 (270), pp. 14–21. DOI: 10.52065/2519-402Х-2023-270-2-2 (In Russian).

Abstract

The article discusses the dynamics of the typological structure and the analysis of the dynamics of the forestry-growing-taxation indicators of the pine formation of Belarus for the period 1978–2021. It was found that during the study period, the area of the pine formation increased by 20% (+674.5 thousand hectares), the total stock of plantations increased by 3 times (+650.8 thousand m3 ) and the average stock by 2.3 times (+142 .4 m3 /ha). A generalized analysis of the typological structure shows that the most common type of forest for the initial and current period is the mossy pine forest – 42.3 and 36.4%, respectively. The proportion of heather pine forests has significantly decreased (from 19.5 to 3.6%) and the proportion of bracken pine forests has significantly increased (from 4.1 to 23.6%). The area of lichen pine forests decreased by more than 4.5 times and the area of lingonberry pine forests decreased by 11 times. The results of the formation of low-density pine forests under the age of 30 years and the share of pine in the forest stand of no more than five units in the context of forest types are considered. It has been established that these plantations are formed to the greatest extent in the mossy, bracken and blueberry series, which repeats the trend of the typological structure of pine forests.

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15.03.2023