the purpose is to summarize the historical events in the park until the present. Performs an inspection of the park, checking damage by both biotic (fungi, insects) and abiotic factors. At castlep ark will be performed inspection whether anything has changed since the previous investigation. On this basis, there will be in the end performed comparison of the state of health and occurrence of disturbances of individual parks. There will be valued the presence of pathogenic fungi, insect pests and abiotic damage. In all cases there will be done photographic documentation.

The goal of the thesis Occurrence of biotic and abiotic damages to forest trees in FMU Chřibská (Forest Management Unit Chřibská) is survey of aforementioned damages within forest properties owned by city of Chřibská in Northern Bohemia. The thesis includes list of damages from years 2007 - 2016 and performs study of possible causes of some of those damages.

No description available.

The discourse of this diploma thesis is about suitable silvicultural and restorative precautions of young tree growth with land conversion. The first part of the thesis describes the up to date knowledge of the respective authors in special phytotechnical intervention cases. A model object was chosen and documented that involves the inventarization of growth , which was used later for evaluation. Silvicultural and restorative precautions are chosen based on the analysis of the current conditions, while intensity and number of recurrences play a significant role in the process. The most influenceable factor for growing young trees is light intensity in growths. Light intensity increases the surface area and volume of additional growth of trees. Item budget was created based on the documented proposal.

This diploma thesis focuses on the issue of the use of phytohormones in cultivation of young fruit trees. It includes a description of phytohormones and their effects on tree nursery yield. Four variants of products promoting branching, containing different active agents and concentrations, were experimentally applied on a set of plum tree varieties in a tree nursery. In the experiment, there was a control sample of plum trees without this treatment. The experiment was performed according to a predetermined methodology for the selection of varieties, well-defined dosage of the agents, development of young plants, concentration of the agents and the method of application. The trees were treated in a standard way within the nursery working. The photo documentation was taken continuously, the first documentation ten days after the last treatment in June, the second in mid-July and the last before the ploughing out in October. The experiment was evaluated according to predetermined criteria, especially by number of branches in the tree crowns. These data were adapted into chart evaluating the effectiveness of products and graphs were prepared for each variety and quality category of the yields. From these processed results, the products promoting branching without nipping off can be recommended for practical use on specific varieties. In this experiment, the most effective substance was 6-benzyladenine acid contained in the product Globaryll. Still, as a result of its use, the trees formed branches of the second and third grade and the crowns were too dense. This effect could probably have been avoided by using a lower concentration or single application of the agent. The obtained results of this experiment strongly support the effectiveness of the phytohormones on branching trees in the nurseries. This treatment makes qualitative shift in the cultivation of young fruit trees.

No description available.

No description available.

This thesis deals with monitoring of the health condition of natural monuments Modřanská rokle. The aim of this study was mapping and evaluation of biotic and abiotic factors that influence the growth of local species. Subsequent to their description and evaluation with regard to on what tree species occurred. To what extent they also threaten of the woods in favorite place for walks and sports of Praguers. The research was conducted by repeated terrain errands during which those individuals were monitored which had external signs of damage. During survey were taken the photographs. Checking of the trees was carried out in the line transects along the creek Libušský. Followed by consultations and evaluation of collected materials and summarized in the conclusion. The field investigations were carried out from March 2015 until the end of February 2016. Harmful factors were identified and described according to photographs taken with the help of literature and Internet sources.

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.

In this work, in the reservation groups of geobiocoenoses types 4 B 3 -- Fageta typica, 4 BC 3 -- Fageta aceris, 4 C 3 -- Tilia-acereta fagi were found. Average diameter at bend height for beech forest in the main stand is 34 -- 91 cm and height is 22 -- 32 m. Norway spruce average values are 23 -- 34 m height and 41 -- 87 cm thickness. Sycamore average values are 19 -- 31 m height and 24 -- 66 cm thickness. Beech achieved average values at stand basal area on plots from 17.7 to 28.6 m2/ha from the total stand basal area, which is 31,7 -- 43,6 m2/ha. The trend that on the more nitrophilous and hydric plots within the same altitudinal vegetation zone are beech individuals higher was confirmed. The assumption of decreasing growth of beech forest with higher slope and altitude was confirmed. For Norway spruce, sycamore and beech forest on the drier stand a greater spacing was confirmed. The consideration about the dispersion of individuals scattered trees in the reservation due to the spontaneous development of tree populations was confirmed and also was found that the protruding bedrock can diffuse dispersion change to random dispersion