DIGITALNA ARHIVA ŠUMARSKOG LISTA

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ŠUMARSKI LIST 3-4/2020 str. 43 <-- 43 --> PDF |

3. Irrelevant (tree which regardless of the damage is of bad physiological status and, with that, does not have any positive influence/impact on selected trees). Since we performed recordings and sizes of damage, based on that, trees were divided according to degree of damage. According to the degree of damage, the trees were divided into: 1. Very severely damaged (trees, whose damage is such that there is no chance of recovery from gained wounds), 2. Severely damaged (trees, whose damage is such that there is a possibility to recover from gained wounds but the damage is such that there will be no significant use of the tree considering the possibility to use the tree in the economy) and 3. Insignificantly damaged (trees, whose damage is such that the tree it self will very quickly recover from its wounds), 4. Undamaged trees. Set test plots were not close to truck roads, therefore, there was no damage during remote transport with loading, and also plots were not close to landings. RESULTS Rezultati The results represent part of the research during the felling and wood extraction phases using the LKT 81 skidder in uneven aged forests in the area of Forestry Kupres. Types of damaged trees – Vrste oštećenih stabalaDamage was recorded on 166 conifer trees and 139 broad-leaved trees. Out of the total number of damaged trees of conifers,133 are fir trees, 33 are spruce trees, 130 beech trees and 9 trees of other broad-leaved species. Intensity of damage, i.e. ratio of damaged and healthy trees is 18.9 % (table 1.). If we add the trees that have only old damage to these trees, then it would be necessary to add to the above-mentioned trees a total of 191 tree, and then the intensity of damage would be 30.62 % i.e. almost every third tree would be damaged. The number of damaged trees is represented in graphic (graph 1.). Breast height diameter of damaged trees – Prsni promjer oštećenih stabalaDuring the research, we recorded 10 damaged trees with the lowest breast height diameter of 6 cm on breast height, and the damaged tree with the highest breast height |