Studies of the state of logging in the Mogochinsky forestry of the Trans-Baikal Territory

Background.Research materials on the natural regeneration of forests in continuous deforestation under permafrost conditions in the Trans-Baikal Territory are presented. The study is relevant due to the spread of the negative impact of forestry activities on permafrost soils. Purpose.Assessment of natural reforestation of tree species after continuous logging in the Mogochinsky forestry of the Trans-Baikal Territory. Materials and methods.Studies on natural reforestation and damage to the ground cover were conducted in the Mogochinsky forestry Department of the Trans-Baikal Territory. Continuous-cutting cuttings in birch and larch plantations were examined. The undergrowth was counted on accounting sites with an area of 2x2 m in accordance with the generally accepted classification of the division of undergrowth in height into three categories of size. In total, 25 test sites were laid on each cutting area. Results.In the course of the research, logging of various ages in the Davendinsky and Mogochinsky district forestry districts of the Mogochinsky forestry District of the Trans-Baikal Territory was examined. The surveyed cutting areas are dominated by mixed deciduous and coniferous undergrowth. Hardwoods Betula L., Salix L., Populus L., Alnus Hill., mostly appeared after logging. The Larix Mill. is represented by a preserved juvenile and a juvenile that appeared after logging. Conclusion.In most of the surveyed areas of continuous logging, good natural regeneration and the formation of a younger generation of forests were noted, except for areas littered with abandoned timber and large felling residues. To minimize thermokarst phenomena during logging in permafrost forest areas, it is necessary to maximize the preservation of living ground cover, forest litter, and shrub layer, which act as a thermal insulator and prevent thawing of deep soil layers.

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