Email this article Dynamics of stand indicators of pine plantations according to the data of long-term observations
- Authors: Dubenok N.N1, Lebedev A.V1
-
Affiliations:
- Russian State Agrarian University - Moscow Timiryazev Agricultural Academy
- Issue: No 4 (2023)
- Pages: 48-51
- Section: Articles
- URL: https://journal-vniispk.ru/2500-2627/article/view/141883
- DOI: https://doi.org/10.31857/S2500262723040099
- EDN: https://elibrary.ru/JYCGYB
- ID: 141883
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Abstract
The purpose of the study is to study the dynamics of stand indicators (average height and diameter, the basal areas and stock) of pine forest plantations of different initial density over a 120-year period based on long-term observations on permanent sample plots. The object of the study was pine plantations on permanent trial plots of the Forest Experimental Station (Moscow). Course of Growth tables are among the simplest models that reflect the change in stand indicators of a collection of forest stands. A comparison of the growth and yield of forest stands on permanent test plots was carried out with tables of the growth course of full pine plantations in the European part of Russia and with tables of the growth course of modal pine stands of the European part of Russia (ecoregions of the southern taiga, zones of mixed, deciduous forests and forest-steppe). The actual curves of the dynamics of stand indicators are located in the entire range of the presented tabular values. It was revealed that the tables of the course of growth give a greatly simplified idea of the change in stand indicators, which in actual forest stands do not have a monotonous dynamic over time. Significant deviations of the series of dynamics of average heights and diameters, basal areas, wood stocks on trial plots from the data of tables of the growth rate of complete and modal pine forest stands were noted. An alternative to traditional tables can be predictive models of the dynamics of stand indicators with different initial state of forest stands, in which there is no strict link to the quality basis.
About the authors
N. N Dubenok
Russian State Agrarian University - Moscow Timiryazev Agricultural Academy127434, Moskva, ul. Timiryazevskaya, 49
A. V Lebedev
Russian State Agrarian University - Moscow Timiryazev Agricultural Academy
Email: alebedev@rgau-msha.ru
127434, Moskva, ul. Timiryazevskaya, 49
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