About the Journal

Authors:

M. V. USOV, post-graduate student,

S. V. ZALESOV, doctor of agricultural sciences, professor, head of the department, vice rector for the research,

D. A. SHUBIN, candidate of agricultural sciences,

A. Yu. TOLSTIKOV, post-graduate student,

L. A. BELOV, assistant professor,

URAL STATE FOREST ENGINEERING UNIVERSITY (37 Sibirskiy tract, 620100, Ekaterinburg)

Abstract.  Silvicultural advantages of alternate strip felling application over clear or selective felling has been analyzed in the paper. It is pointed out that the information data on mature and overmature stands felling is in full accordance with the biology of common pine (Pinus sylvestris L.) as it eliminates rivalry for undergrowth from maternal stands and guarantees seeding on cut down stripes as well as under the canopies of maternal standing strips. Economic effectiveness of alternate strip felling consists in increasing labour productivity of felling harvester operator (driver) as there is no need to choose trees when felling. Alternate strip felling carried out in pine forests of Altai does not lead to windfall timber formation nor to some other negative consequences. But at the same time the above-mentioned felling types carried out in grassy forest types for lack of undergrowth preliminary generation result in grassy vegetation spreading out. It hampers natural reforestation on felled strips. To guarantee successful reforestation it is necessary to include formation of common pine forest cultures in the practice of alternate strip felling and add this recommendation to the normative documents on reforestation. According to the reforestation rules now artificial stands formation in alternate strip felling is not envisaged. Objects of our research were the pine plantings of tape pine forests of Altai Krai subjected to experimental gradual alternate strip felling. In the course of the research the condition of the part of a forest stand left on growing and success of natural reforestation was studied.