HEALTH STATUS OF FOREST EVEN – AGED STANDS ON AREA OF EASTERN BOSNIA
UDK: 630*4:582.475(497.6 Pale) Total of 125,479 ha of different stated owned forest cultures were registered in the territory of Bosnia and Herzegovina (1990). Stability of forest even – aged stands and forest communities in genera has been endangered by damaging biotic and abiotic factors of local and global nature. The biggest damages on forest cultures have been caused by insects and fungi, biotic factors, and snow and wind, abiotic. The negative influence of global factors, that is, global climate changes has recently stood out. The aim of this research was to determine of health status of forest even – aged stands. Research for the purpose of this work has been carried out in the territory of Forest management Jahorina, Pale with three forest even – aged stands: Norway spruce, Scots pine and forest even – aged stands of other coniferous (European larch and Douglas fir). Research included 796 trees of Norway spruce, Scots pine, European larch and Douglas fir. Presence of insects was identified on 15,58%; fungi on 2,14%, and mechanical damages on trunk and/or crown 11,06% of the total number of examined trees. Of the total number of examined trees, the share of mechanical damages on trunk and/or crown of trees is as follows: first crown, and then trunk. Share of trees with mechanical damages on both crown and trunk is rather small. Identified damaging biotic and abiotic factors do not cause significant damages on the analyzed forest even – aged stands.