This thesis deals with the effects of a wildfire on the trees and natural regeneration of the forests of Absamer Vorberg (AV) in the Inn valley (Tyrol). Due to the importance of the protection forest in the study area the fulfilment of the present protection function of the forest was evaluated according to the NaiS-concept (Sustainability in protection forests) by Frehner et al. (2005). The evaluation was done based on inventory data using the angle-count method on 38 plots predetermined by GPS data. The assessment of the natural regeneration was based on tract areas (4 x 25 meters) investigated by the Province of the Tyrol. In addition, the ground cover was recorded in these areas. As the investigated plots were classified according to damages it was possible to draw conclusions about the effects of the forest fire event: In examining the number of trees, the ground area and the growing stock, significant differences became visible. Before the fire in 2014 the number of stems was 511,5 N/ha, in 2015 after the fire event the number of stems was reduced to 360,0 N/ha, the ground area was reduced from 21,1 m/ha to 16,8 m/ha and the growing stock has diminished from 123,9 m/ha to 101,7 m/ha. The average ratio of the living crown amounts to 86,3 % and differs between the various tree species significantly. The medium height of flames increases with the level of damage. It turned out that depending on the damage classes the condition of the natural regeneration differs significantly in regard of number of stems and tree species composition. In this context the dominance of the understorey vegetation is very important for the establishment. As a final conclusion from this evaluation it can be drawn, that the main protection functions of the AV in respect of avalanche, rock fall and erosion are only partially fulfilled. However, the emergency measures have had largely positive effects for the future development of the forest and its protection function.