Growth and development of pine forests on the northern border of growth of Krasnoyarsk region
https://doi.org/10.53374/1993-0135-2023-3-218-223
Abstract
The growth of tree formations on the border of their range is due to the influence of a whole range of negative factors, primarily climatic conditions. All this affects both the development of plantations and their growth.
Scots pine (Pinus sylvestris L.) is characterized by plasticity, which allows this tree species to have a huge range and the ability to grow both in mountainous conditions and in northern cold areas. The study of pine forests was carried out on the basis of taxation materials of forest inventory. The object was the pine forests of the Baikit forestry, located in the conditions of the Central Siberian plateau of the Krasnoyarsk Krai. The most common type of growing conditions: fresh sandy and loamy soils. Unfavorable growing conditions contribute to the formation of low-grade forest stands (IV grade – 35 plots, V grade – 45 plots). The age of observed forest stands is from 5 to 260 years. The average height varied from 1 to 22 m. The stock varied from 10 to 210 m3/ha. The soils are decomposed podzol on gravelly soils predominantly. Based on the analysis performed, it was found that the difference in growth rates in pine forests of different types is mainly due to internal (endogenous) factors characterizing forest stands (species representation, density, degree of uneven age, etc.). That explains the presence of pine forests of IV and V classes of bonitet under these conditions. A table of the dynamics of taxation indicators of modal pine forests of the green mosslichen group of forest types on the border of growth in the conditions of the Krasnoyarsk Krai has been compiled. Based on the table of the dynamics of taxation indicators, a standard was developed for assessing the biological and carbon productivity of modal pine forests according to the main fractions (trunks, branches, roots, needles). It has been established that pine forests are characterized by a sufficiently high durability. They have a pyrogenic or sublingual origin. The age of natural ripeness is at 220 years.
About the Authors
A. A. Vais
Reshetnev Siberian State University of Science and Technology
Russian Federation
Russian Federation
31, Krasnoyarskii rabochii prospekt, Krasnoyarsk, 660037
N. V. Kozlov
Reshetnev Siberian State University of Science and Technology
Russian Federation
Russian Federation
31, Krasnoyarskii rabochii prospekt, Krasnoyarsk, 660037
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Review
For citations:
Vais A.A., Kozlov N.V. Growth and development of pine forests on the northern border of growth of Krasnoyarsk region. Conifers of the boreal area. 2023;41(3):218-223. (In Russ.) https://doi.org/10.53374/1993-0135-2023-3-218-223
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