RESEARCH ON THE GROWTH AND FORMATION OF FOREST CROPS OF VARIOUS TYPES WOODY SPECIES IN HOMOGENEOUS FOREST CONDITIONS

UDC 630*233

 

Yakimov Nikolay Ignat’yevich − PhD (Agriculture), Assistant Professor, the Department of Forest Plantations and Soil Science. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: yakimov@belstu.by

Gvozdev Valeriy Kirillovich – PhD (Agriculture), Assistant Professor, the Department of Forest Plantations and Soil Science. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: gvozdev@belstu.by

Yurenya Andrey Vladimirovich – PhD (Agriculture), Assistant Professor, the Department of Forest Plantations and Soil Science. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: urenya@belstu.by

 

DOI: https://doi.org/ 10.52065/2519-402X-2024-282-10.

 

Key words: forest crops, fresh bark, Scots pine, European spruce, European larch, hanging birch, common ash, holly maple, small-leaved linden, red oak, preservation, productivity.

For citation: Yakimov N. I., Gvozdev V. K., Yurenya А. V. Research on the growth and formation of forest crops of various types woody species in homogeneous forest conditions. Proceedings of BSTU, issue 1, Forestry. Nature Management. Processing of Renewable Resources, 2024, no. 2 (282), pp. 82–87 (In Russian). DOI: 10.52065/2519-402X-2024-282-10.

Abstract

The aim of the work was to study the safety and productivity of 17-year-old forest crops of various tree species in conditions of poor fresh soil. For this purpose, forest crops of eight tree species were laid: scots pine, European spruce, European larch, hanging birch, common ash, holly maple, small-leaved linden and red oak. The soil on the site is sod-podzolic, slightly saline, on cohesive sand, underlain from a depth of over 1 m by moraine loam. In terms of acidity, the soil at the site is slightly acidic (pH = 5.8–6.2) and is provided with humus in an average degree (2.2%). When forming forest plantations of various species, the preservation of forest crops is of fundamental importance. Analysis of this indicator at different age stages should be carried out taking into account their phases of growth and development, which represent a certain qualitative and quantitative state of forest crops during a specific period of life. Spruce, larch and birch crops had the best preservation (66–70%). The safety of pine, linden, ash, and red oak was 50–53%. Maple forest crops are the least preserved – 20%. The productivity of larch was 164 m3/ha, pine – 122 m3/ha, birch – 115 m3/ha, spruce – 104 m3/ha. Linden 53 m3/ha, red oak 64 m3/ha, ash 66 m3/ha and maple 22 m3/ha had a smaller stock of wood. Thus, on cohesive sandy soils, European larch, Scots pine, hanging birch and European spruce showed the best preservation and productivity in 17-year-old forest crops.

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16.02.2024