The course of growth of modal fir stands of the Yemelyanovsky forestry
https://doi.org/10.53374/1993-0135-2023-1-7-11
Abstract
The patterns of growth and productivity of plantings are not only the theoretical basis of forestry activities, but are also used in practice to perform many calculations, serve as the basis for the construction of forest taxation standards. Tables of the course of growth of normal plantings are designed to study the regularities of the structure and can serve as a standard for forest taxation, it is advisable to compile them by bonus classes. To determine the age of ripeness and to solve other issues related to the actual state of forests, tables of the course of growth of modal plantings are intended.
In this article, on the basis of sample data from the taxation descriptions of the Yemelyanovsky forestry of the Krasnoyarsk Territory, a table of the course of growth of fir stands of the III class of bonitet is compiled. The alignment was carried out according to the height and diameter for each of the elements of the forest and the stock of the tier per 1 ha. The correlation coefficient ranges from 0,9737 to 0,9979, the standard relative error of the equations does not exceed ±10 %. Analysis of the compiled growth progress table showed that the age of natural ripeness of fir stands at 170 years has not yet come, which is generally characteristic of modal stands, the age of quantitative ripeness is observed at 80 years. To compare the compiled growth progress table with a similar table by E.N. Falaleev and V.S. Polyakov, the method of comparing the standard deviation percentage proposed by V.V. Zagreev is used.
The conducted research confirms the need to develop regression models of the main taxation indicators and build growth progress tables based on them, reflecting the growth characteristics of plantings in a particular region.
About the Authors
T. V. Batvenkina
Reshetnev Siberian State University of Science and Technology
Russian Federation
Russian Federation
31, Krasnoyarskii rabochii prospekt, Krasnoyarsk, 660037
I. A. Vorobeva
Reshetnev Siberian State University of Science and Technology
Russian Federation
Russian Federation
31, Krasnoyarskii rabochii prospekt, Krasnoyarsk, 660037
L. I. Romanova
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:
Batvenkina T.V., Vorobeva I.A., Romanova L.I. The course of growth of modal fir stands of the Yemelyanovsky forestry. Conifers of the boreal area. 2023;41(1):7-11. (In Russ.) https://doi.org/10.53374/1993-0135-2023-1-7-11
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