Features of the reforestation process of small-area burned area in the forest-steppe and taiga zone of the Tyumen region

The results of post-fire natural forest restoration on burned area up to 10 hectares of the south taiga zone of Western Siberia (e.g. Uvat forestry) and the subtaiga foreststeppe forest area (e.g. Iset forestry) are presented. Research data have shown that in 5–15 years after a wildfire according to the quantitative and qualitative indicators of main forest-forming species (pine, birch) regeneration there is a continuous forest restoration process. Pine natural regeneration is assessed as “normal” due to normative indicators. It was found that with the increasing distance from the forest border there is a common pattern of decreasing quantity of seedlings and undergrowth. It is proved that at a distance of 100 m from the forest border the number of seedlings and undergrowth in all height categories is by 1.5–2 times lower compared at a distance of 50 m from the forest border. There is a predominance of vital pine undergrowth – up to 60–100%. According to the indicator of pine undergrowth frequency, reforestation is going in the entire territory of the burnt area. In taiga conditions, there is a sufficient amount of large-sized viable aspen undergrowth in sufficient quantity (up to 2.0 thousand pcs / ha). This is the evidence of the successful reforestation of burned areas at this stage of development.

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