UDC

630*52

Authors

Feklistov Pavel Aleksandrovich
Forestry Engineering Institute, Northern (Arctic) Federal University named after M.V. Lomonosov (Arkhangelsk, Russia)
e-mail: feklistov@narfu.ru
Kunnikov Fedor Aleksandrovich
Postgraduate Student, Forestry Engineering Institute, Northern (Arctic) Federal University named after M.V. Lomonosov (Arkhangelsk, Russia)
e-mail: fdr1989@mail.ru
Klevtsov Denis Nikolaevich
Forestry Engineering Institute, Northern (Arctic) Federal University named after M.V. Lomonosov (Arkhangelsk, Russia)
e-mail: d.klevtsov@narfu.ru
Khabarova Elena Pavlovna
Postgraduate Student, Forestry Engineering Institute, Northern (Arctic) Federal University named after M.V. Lomonosov (Arkhangelsk, Russia)
e-mail: alena.khabarova2010@yandex.ru

Abstract

The problem of biological productivity in the study of ecosystems (including forest ones) gives rise to a number of researches dealing with a whole set of issues on organic matter formation, transformation and accumulation, including the analysis of productivity factors. The conducted study is of great practical significance, as various phytomass fractions of stands have considerable economic importance. The data obtained allow us to evaluate the potential of biomass fractions traditionally unused and can be applied in forest monitoring and environmental programs. We studied both natural and artificial blueberry pine stands growing in the northern taiga subzone of the European North of Russia. The phytomass was determined by weighing in fractions: dry twigs, raw branches, wood greens, trunk with the bark and without it. The paper presents data on the correlation between the phytomass of various pine tree fractions and their diameter at a height of 1.3 m in natural and artificial pine stands. The closeness of this correlation was determined. Equations describing these correlations were developed. The obtained models were analyzed and tables were compiled to determine the aboveground phytomass. The correlation between the tree diameter at breast height and phytomass of individual fractions is close and very close. Dependence of fraction phytomass on diameter is best described by the power function y=axb. Regression models of the correlation between the phytomass (dry twigs, branches, tree foliage, wood and bark) and diameter at breast height are close both for natural and artificial pine stands. There is a close correlation between tree diameter and fraction mass, which is getting even closer with age.

Keywords

aboveground phytomass, diameter, dependency equation, natural stand, artificial stand, blueberry pine forest, northern taiga subzone

References

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