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No description available.

Mistletoe infection was investigated in the castle park of Lednice on approximately 10 000 woody trees. There are 6034 potential host individuals of 62 taxa, from which already 1692 individual is infected (28%). The most common hosts (Acer campestre, A. platanoides, A. pseudoplatanus, Crataegus monogyna and species in his circle, C. pedicellata, Juglans nigra, Robinia pseudoacacia, Tilia cordata a T. platyphyllos) were studied for basic (analysis of variance, analysis of covariance, analysis of contingency table and regression analysis) and advanced (logistic regression, log-linear analysis and spatial analysis) statistical modelling with nine local factors (tree height, diameter at breast height, crown projection area, crown volume, tree age, development stage, physiological and biomechanical aspect of vitality and location of individuals). The examined local factors, from which the most important are the age and vitality of trees, have statistically significant effects to mistletoe distribution. The aim of our study was also testing the control methods against mistletoe using mechanical removal and herbicide treatment. Based on our studies it can be conclude that none of these control methods were effective enough. The partial regeneration of mistletoe shrubs was observed no later than the second year after the application. Besides, herbicide treatments have negative effects to the host.

The aim of the work was to analyze the issue of agricultural land a orestation by fast-growing trees and to explore the soil environment in relation to the ecological and growth demands of the Paulownia in terms of soil physical properties. The subject of the work was the area of the plantation on agricultural land with the planting of Paulownia (clone in vitro 112) from the years 2016, 2017 and 2018 near the village of Střelice u Brna. Data gathering was focused on the physical properties of soil in terms of water and air mode and compaction. The basic soil chemistry obtained data will be given for the evaluation of growth conditions. The resulting data were statistically evaluated and the results were presented using appropriately designed tables and graphs. The charts were supplemented with comments and evaluated. The results revealed suitability of researched soil environment of aspect of chemism while the physical properties became evidently insu?cient. In addition to soil environment also the climatic conditions were found critical for Paulownia planting. Although the climatic data collection was not direct subject of this research I found – on the base of ?eld investigation – I can state their unsuitainability for Paulownia cultivation due to frost threat.

This diploma thesis deals with the influence of hardwood species (particularly sessile oak -- Quercus petraea) in spruce monocultures on diversity and herb layer species composition. The aim of the thesis is create 40 phytosociological relevés with different percentage representation of aok in spruce monocultures. Particularly 10 relevés for 4 spruce monocultures variants was described: 10 relevés of 100 % spruce monocultures, 10 relevés of 90 % spruce monocultures with 10 % oak, 10 relevés of 80 % spruce monocultures with 20 % oak and up to 50 % of oak and 50 % of spruce. Resulting phytosociological data will be processed and floristic similarity of relevés will be evaluated based on species diversity indexes. The result draw conclusions about herbal layer abundance (quantitatively and qualitatively) in relation to portion of hardwood species in spruce monocultures.

This thesis deals with the legal aspects of protection of vegetation elements in the Slovak juridical system. Model area for the working out of real-world performance vegetation management and cutting down trees issues in the city was chosen county seat of Nitra. It is a city with a population of approximately 80000th. The first part describes the general protection of vegetation elements and their position in the Slovak regularization. Attention was paid to the autonomy and state administration in the municipality. Next, they were drawn schematic view of the real functioning of first instance organ of nature in the case of applications for tree felling in Nitra. The real functioning of the administrative proceedings on felling of trees owned by the municipality was faced with a functioning under Act. 543/2002 Coll. on nature and landscape protection, as amended, and applicable regulations implementing this law. The work also included the functioning of the approval process of concepts for vegetation maintenance in the city of Nitra and a summary table of powers of government under applicable law.

This thesis deals with the possibility of using evapotranspiration for efficient drying of wood. An important prerequisite is that the trees with good coppice pleated capability even after they are felled and physiologically active until they have enough water in the wood. The physiological activity sheets then accelerates the drying of wood. In search of work deals with familiarization with the problems of drying biomass possibilities of its use, and other definitions associated with this work. The main output of this work is to evaluate the decrease in water content in the wood poplar Populus maximowiczii x Populus nigra 'Max 1-5', chopped down just before the start of the growing season, due to evapotranspiration. In discussing data are compared with other available literature and summarized at the end of everything.

This thesis deals with the creation dendrological nature trails and its integration into the existing network of hiking trails. The proposed route of the nature trail was selected the National Park Podyjí and location Lesná - Ice caves. Work is also engaged in the exploration habitats and trees in this area. According to their location in the terrain along the trail, they were scheduled individual stops. The topic itself stopping is a graphic and text attachments to individual tree species and their habitats within the meaning of National Park. They were made graphic designs of information boards. These are presented as separate outputs nature trails. The thesis deals with research already existing network of hiking trails in the localized area. It offers the possibility of tourists use the proposed nature trails in the overall assessment of attractive tourist destinations National Park. On the territory of the National Park were surveyed exploration existing nature trails. The inquiry was the issue of the length and design information boards.

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