Peculiarities and silvicultural efficiency of passing cuttings in drained forests

The aim of the study is to assess the characteristics of the growth of forest stands and the silvicultural efficiency of passing cuttings in drained forests and to identify the features in their appointment. The objects of the study were stationary objects of the Vologda regional laboratory of the Federal State Institution “SevNIILKh”, founded in the Sokolsky, Vologda and Babaevsky municipal districts of the Vologda Oblast on soils of transitional and lowland types of waterlogging. It has been established that in spruce forests, which are characterized, in the dominant majority, by a mixed composition and a structure of different ages, liquid passing cuttings are approaching a selective system. This approach allows for continuous forest management. In the emerging spruce forests, these cuttings, first of all, provide care for the composition and rejuvenation of the age structure. In pure pine plantations, passing cuttings are carried out in order to increase the growth energy of pine trees that are promising for further reforestation. First of all, old-growth and faut specimens, as well as oppressed pine trees, are subject to assignment to felling. In the dominant majority, pine trees from the central thickness steps, species with their share in the stand composition of no more than 2 units and undergrowth are subject to conservation. When developing the inter-channel space, the appointment of trees for felling in the canal strip is carried out according to their vital (sanitary) condition. The optimal organizational and technical parameters of passing cuttings in drained forests for their profitability and achievement of silvicultural efficiency are the sampling intensity from 30 to 50% for the stock and the relative density of the forest stand is not lower than 0.6.

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