The Effect of Voluntary-Selective Felling on the Basic Wood Increment in the Aged Spruce Forests

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DOI: 10.17238/issn0536-1036.2017.1.95

Abstract

The article presents silvicultural and taxation characteristics of the aged spruce forests after moderate and moderately high voluntary-selective felling. The goal of research is to obtain reliable data characterizing the state, productivity and resistance of spruce forests after se-lective felling to environmental conditions, technological and human impacts. The objects of research are located in the Arkhangelsk forestry and presented by the overmature spruce stands, traversed by selective cutting 15 and 17 years ago. 5 temporary sample plots were established (each plot is 0.04 ha in size). The complex of silvicultural and forest inventory works were carried out on the sample plots. To assess the impact of selective logging on the wood increment 60 samples (cores) of timber were taken: 40 pcs. – in the plantations after logging (20 pcs. in each site), 20 pcs. – in the undisturbed forests. The data obtained on the sample plots were treated by the accepted forest inventory methods and variation statistics methods. A comparative analysis of the current growth in diameter before and after varying intensity cutting and in the undisturbed forests is carried out. The current increment is de-clined after the voluntary-selective felling over 1…3 years. The statistical tests of differ-ences of mean increment, percentage of late wood before and after selective cutting of dif-ferent intensities are calculated. Moderate and moderately high voluntary-selective felling do not reduce the quality of the formed wood; wood density after felling remains at a high level – 409…458 kg/m3.

Authors

A.S. Il'intsev1,2, Postgraduate Student, Research Scientist S.V. Tret'yakov1,2, Doctor of Agricultural Sciences, Associate Professor R.A. Ershov1, Postgraduate Student I.V. Fedotov1, Postgraduate Student

Affiliation

1Northern (Arctic) Federal University named after M.V. Lomonosov, Naberezhnaya Severnoy Dviny, 17, Arkhangelsk, 163002, Russian Federation; e-mail: Ilintsev666@yandex.ru, s.v.tretyakov@narfu.ru
2Northern Research Institute of Forestry, Nikitova ul., 13, Arkhangelsk, 163062, Russian Federation; e-mail: Ilintsev666@yandex.ru

Keywords

voluntary-selective felling, intensity of cut, current increment, wood density

For citation

Il'intsev A.S., Tret'yakov S.V., Ershov R.A., Fedotov I.V. The Effect of Voluntary-Selective Felling on the Basic Wood Increment in the Aged Spruce Forests. Lesnoy zhurnal [Forestry journal], 2017, no. 1. pp. 95–103. DOI: 10.17238/issn0536-1036.2017.1.95

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Received on December 07, 2015