Ice storm in February 2014 in the Idrija region caused a lot of damage to the trees. We wanted to know a little bit more, so we went onto the field where we analyzed thinned stands and the ones that were not thinned to determine whether thinning affects the damage after ice storm in beech stands. We established 24 plots each with 200 m2 in the area in thinned and not-thinned stands. We wanted to know how damaged the trees were and find out the number of dead trees, their social status and some other parameters. All the data was analyzed using simple parametric and non-parametric statistics. We found out that in thinned stands, there is a smaller number of trees with severely damaged crowns. The occurrences of other types of injuries in thinned and non-thinned stands were not significantly different, indicating intensive disturbance and therefore partially non-selective damaging. The proportion of the undamaged trees was highest in the understory layer, while the number of the most severely damaged trees was highest in the canopy layer. We found only small proportion of emergent trees that were heavily damaged. The damage increased with increasing inclination, but the differences were small and in our case the slope was not the most important factor that affected the tree injuries. The most affected tree species was beech, and the least damage was recorded for the silver fir.
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