Health of silver fir seedlings and saplings in the belt of beech forests on Mt. Grmeč - FMU Čelić Kosa [Bosnia and Herzegovina] | Здравствено стање подмлатка и младика јеле у појасу букових шума на планини Грмеч - ГЈ Челић Коса [Босна и Херцеговина]
2011
Керен, С., Шумарски факултет, Бања Лука (Bosnia and Herzegovina) | Станивуковић, З., Шумарски факултет, Бања Лука (Bosnia and Herzegovina) | Говедар, З., Шумарски факултет, Бања Лука (Bosnia and Herzegovina)
Silver fir is a species of narrow ecological valence, so it is highly susceptible to various extreme values of abiotic factors (drought, heat, extremely low air temperatures), and especially to air pollution which, together with numerous adverse biotic factors occurring in these forests, is a serious problem affecting the stability of fir forests. The study area consisted of four sample plots 25x25 m, of which two were on south aspect (OP1 and OP2) and two on north aspect (OP3 and OP4). OP1 and OP2 belong to the community Querco-carpinetum illyricum, the development of which is orographically conditioned because a belt of montane beech forests Fagetum montanum illyricum dominates in the study area. To assess the viability and health, the following parameters were assessed for each tree: decline index, degree of defoliation and discolouration by the unique method of excessive pollution monitoring in Europe. The following trees were identified on sample plots: silver fir, beech, European hornbeam, maple, and other broadleaves. The distribution of tree number per diameter classes on all sample plots has the characteristics of the distribution which characterises all-aged stands close to selection stands. The year when the above damage occurred (2003) was the most arid and the warmest in the last 50 years in this study area.
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