Black locust is an increasingly widespread tree species growing up in the lower Vipava valley, which has at some locations already displaced autochthonous vegetation. An analysis of the development of black locust stands after the clear cutting was carried out in order to determine the dynamics of the development of such stands and see what kind of silvicultural approaches could be used to enable greater diversity of tree composition. It was found that the black locust is the dominant tree species in the upper layer and has no competition. Under the canopy layer and in the regeneration, there are several tree species that could be promoted using appropriate silvicultural measures, thereby increasing the biodiversity of the stands. Some silvicultural systems have been proposed to do that, however the ownership of forests is a problem. Forests are mostly privately owned and forest owners are not willing to change their current silvicultural practices.
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