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The aim of the Bachelor´s thesis is to assess the operation of Fire Rescue Service Units of the Czech Republic and Voluntary Fire Units of municipalities when interventing on woody plants. This thesis summarizes information from various sources while comparing options, abilities and equipment of fire fighters relating to woody plants interventions. Subsequently, a way-out in form of proposed steps was found to the identified shortcomings. These steps shall contribute to the quality of provided services by fire fighters. The aim is to propose comprehensive steps, with the effectiveness to the entities apart from Fire Rescue Service Units of the Czech Republic and other Fire Units. The analysis conducted in this thesis should show gaps and shortcomings of fire fighters when interventing on woody plants, which can be perceived negatively by the public. The result is a proposal of steps to improve the work of fire fighters when interventing on woody plants.

This thesis focuses on the current situation of woody plants on selected avalanche tracks in the Giant Mountains (Krkonoše), the Czech Republic, namely the avalanche tracks no. 2 (Žlab Úpičky), no. 3 (Úpská rokle) and no. 27 (Navorská jáma). Specific areas were delimited in these locations to measure biometric characteristics and potential damages of live trees, assess the occurrence and type of rejuvenation and evaluate the volume of dead wood. The measured data were summarised in graphical and tabular form, including maps with delimited areas. The processing of results also involved a comparison of both locations and evaluation of formulated hypotheses. We found out that 30-50 % specimens in the above locations are damaged. The most frequently damaged part included the trunk and the most frequent type of damage was trunk bending or breaking.

In the mountains Hrubý Jeseník was the 18 monitoring plots in the years 2010-2013 conducted tramping of small mammals, inventory damage gnaw the bark of the beech forest plantations and the measured data to investigate the factors influencing the impact of small mammals. Small mammals were then evaluated in terms of dominance, impact on planting and statistically analyzed factors affecting impact. The results show that the dominant group were representatives Arvicolinae (n= 512, 62.4%): Clethrionomys glareolus (n= 306, 37.3%), Microtus agrestis (n= 181, 22.1%), Microtus arvalis (n=23, 2.8%), Microtus subterraneus (n= 2, 0.2%). In terms gnaw the bark of trees to damage most often involved in Microtus agrestis and Microtus arvalis, causing minor damage also Clethrionomys glareolus. Altitude, exposition, composition and character of the herb layer and abundance of voles are significant factors which can affect the impact of small mammals. This information can be useful for forest management, which can reduce the risk of the forest damage occurrence and decrease costs of silvicultural operations.