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Bulletin of the MRSU / Section "Biology" / 2013 № 1.

 

Druzhinin F.N., Chernousov N.V.

ABOUT PRELIMINARY SPRUCE REPRODUCTION CONCERVATION DURING CONTINUOUS FELLINGS // Bulletin of the Moscow Regional State University (electronic journal) [Bulletin of the Moscow Regional State University (electronic journal)]. 2013. no. 1.


UDC Index: 630*221.2

Date of publication: 13.02.2013

The full text of the article

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Abstract


Preservation of the forest coniferous component was evaluated at different technological processes of wood cutting areas development. Skidding of bundles of trees with tops with Russian unit-type equipment (ЛП - 19а, ЛП - 18, ЛП - 33) is possible only in drained areas. The stock of wood cutting areas should be ensured with coniferous undergrowth of mainly 1.5 m height gradation. The technological process of two kinds of wood cutting (whip and sorting one) demands to fulfill the coniferous undergrowth preservation requirements and depends only on the quality of wood cutting, but not the technical facilities. At continuous cuttings with preliminary spruce reproduction the undergrowth (trees of the 2nd layer) should be characterized with high vitality. The criteria of vitality are as follows: 10-15 cm height increase within recent period, pyramidal crown with needles, 50-60 year-old undergrowth of 5-6 m height.

Key words


continuous fellings with preliminary spruce reproduction, technology of cutting area works, natural reforestation process, undershelter spruce (2nd layer, undergrowth), forest condition and safety

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