Outlooks of some exotic species in the forest management of the Czech Republic
1996
Beran, F. | Sindelar, J. (Vyzkumny Ustav Lesniho Hospodarstvi a Myslivosti, Jiloviste-Strnady)
Exotic species grow on an area of about 35,000 ha in the forests of the Czech Republic, i.e. on 1.5 % of the forested area. The highest proportion of this area is shared by the black locust and exotic species of spruce, which are planted in substitute stands in the regions afflicted by air pollution. Considering the introduction of other promising species, the proportion of the species is low, amounting to ca. 5,000 ha. Evaluation of further posibilities of exotic species introduction is urgent with respect to the maintenance of forest production, in view of permanent harmful effects of air pollution on forests and as one preventive measures related to anticipated changes in the climate. Douglas fir, grand fir, red oak and black walnut are taken into account as tree species with the best practical outlooks. Some other species could be planted for specific purposes and at specific sites with a current lack of domestic tree species. The upper limit for the use of exotic species in the forest management of the Czech Republic is to be a share of 17 per cent. The Douglas fir will take about half of this share.
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