Natural forest regeneration in spruce monocultures in the Ukrainian Beskids - prognosis by FORKOME model

https://doi.org/10.17221/2355-JFSCitation:Kozak I., Parpan V., Potaczala G., Kozak H., Zawadzki A. (2007): Natural forest regeneration in spruce monocultures in the Ukrainian Beskids - prognosis by FORKOME model. J. For. Sci., 53: 162-169.
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This paper presents the results of investigations on natural forest regeneration in Norway spruce (Picea abies L. Karst.) monocultures in the Ukrainian Beskids with the use of FORKOME model prognostic possibilities. Different variants of regeneration methods are presented. Selective cutting with planting was determined as the most effective: spruce selective cutting with simultaneous planting of target species: beech (Fagus sylvatica L.) and fir (Abies alba Mill.) with admixture of ash (Fraxinus excelsior L.). Beech and fir biomass increases rapidly over the first 20 years − then it stabilizes. After another 20−30 years the initial form of beech forest is recognizable and it is possible to speak about an increase of beech forest, which in the course of time achieves a higher degree of similarity to natural stand. In the Ukrainian Beskids the potential forest stand consists of beech and fir (Dentario glandulosae-Fagetum).
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