Influence of additional landings on the formation of the structure of pine forest cultures in the Kurgan region
https://doi.org/10.21266/2079-4304.2025.256.335-349
Abstract
The object of the research is 8-year-old pine forest cultures in clearings in the true mosses type of forest in the territory of the West Siberian subtaiga-forest-steppe region. The aim of the research is to study the features of the structural and functional organization of pine forest plantations with different numbers of additional landings at the time of their transfer to the category of lands on which forests are located. The studies on the sample plots of forest plantations were carried out according to generally accepted methods, taking into account modern methodological requirements, with the laying out of sites measuring 50x50 m transect. The trees were additionally divided into groups by year of planting. It was found that in forest plantations with additional landings, the average diameters and heights of the trunks were significantly reduced compared to areas where additional landings were not made, but, in general, they met the established requirements, both in terms of the number and average height of trees of the main species. It has been shown that as a result of additional landings, the average age of pine forest plantations has decreased by 0.4–1.2 years. The presence of trees of different ages and sizes, as a result of the additional landings, determines a significant range of variation in trunk height. It has been established that in the absence of additional landings or a single additional planting, the distribution of trees by height is close to normal. In the presence of several additional landings, the distribution of pine trees by trunk height differs significantly from normal. Pine forest cultures with additional landings can be classified as single-aged young stands with regular placement of trees.
About the Author
M. V. Ermakova
Botanical Garden of Ural Branch of the RAS
Russian Federation
Russian Federation
ERMAKOVA Maria V. – DSc (Agricultural), Leading Research Scientist
620144. 8 Marta str. 202a. Ekaterinburg
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Review
For citations:
Ermakova M.V. Influence of additional landings on the formation of the structure of pine forest cultures in the Kurgan region. Izvestia Sankt-Peterburgskoj lesotehniceskoj akademii. 2025;(256):335–349. (In Russ.) https://doi.org/10.21266/2079-4304.2025.256.335-349
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