UDK 630*44:632.25(234.422 Igman) DETECTION OF DECAY IN INJURED TREES OF SILVER FIR USING THE METHOD OF TOMOGRAPHY Utvrđivanje truleži kod povrijeđenih stabala jele metodom tomografije
Silver Fir in Bosnia and Herzegovina is the important coniferous species of trees in term of forestry and biodiversity. Numerous harmful factors have the impact to its health and vitality. One of them is different damages of standing trees by machinery. These injuries represent suitable entering openings for microorganisms which afterwards cause decay of the wood. Wood affected by this process has a decreased quality or it becomes completely unusable. Infection and development of decay are in correlation with the size of the injuries and its position on the tree. In recent times the methods of analysis of decay based on the flow of electric energy or sound through the wood were developed. One of these methods is the sound tomography which gives us the possibility to review the condition of the tree without the need to cut it or damage it significantly. It is performed by the device called tomograph. In this paper, by the method of tomography, the presence of signs of decay of wood on injured trees of Silver Fir was identified.