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Evaluation of Natural Reforestation in the Small- Leaved Forests and Fellings of the North. P. 35–45

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Section: Biology




Zarubina Liliya Valer’evna
Vologda State Dairy Farming Academy by N.V. Vereshchagin (Vologda, Russia)


The article describes the features of natural reforestation in soft-wooded broadcasting forests of the European North with different light status. The objects of the research were the blueberry birch and aspen forests. It was found that the natural reforestation under the canopy of small-leaved forests in the north of the European Russia runs in a prosperous groove. The main representative in the undergrowth of broadleaved species is a birch of a vegetative origin. The condition of the undergrowth is unsatisfactory; it can be improved by appropriate measures in the form of selective loggings. Gradual fellings in broadleaved forests, improving forest growth conditions for the undergrowth, however, lead to the undergrowth mortality. The undergrowth mostly dies as a result of the harvesting technique operation at the gradual fellings. With the development of winter cutting area operating there are more than 80 % of the undergrowth persist in the stands with the broadleaved species. A spruce dominates among the young trees in the fellings and stands. The gradual fellings improve the environmental factors, which in their turn raise the living condition of spruce. As a result, a category of spruce viability is increased for one point, the average age of undergrowth in the height groups is reduced, the trees distribution among the trees of rank status betters. With the increasing of living standards the growth processes of a spruce are activated. A marked improvement of a height growth among all height categories is observed in the third year after felling. Small and medium undergrowth categories have high response to felling, as well as the trees of high rank, occupying a leading position in the spruce canopy. The paper presents the study results of natural reforestation under the canopy of a forest and its change after a gradual felling.


reforestation, small-leaved forests, undergrowth, fellings
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