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Posouzení vhodnosti použití harvestorové technologie lesní těžby na lesním majetku Orlík nad Vltavou, s.r.o.
Bambuškar, Petr
Objectives of this project is to consider usage of harvester technology at terms which are at forestry estate of Orlík nad Vltavou, s.r.o.. This project is about harvester technologies at large for example assortation of HT, technical specifications, limits in terrain and usability in practice. Theory will be after that confronted with practical experiences because we compare natural conditions which are at LHC with conditions which we need for deployment and using harvesting technologies. Using criteria for deployment of HT at underbrush is agency of conifers and wooden reserve in particular age stages and management set of stand where these conifers are. After that we compare costs for HT and for classic technology of logging. Prices are only orientation.
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Výskyt listových a klasových patogenů obilnin ve vztahu k mikroklimatu porostu
Gešvindrová, Kristýna
The thesis if focused on monitoring and evaluation of microclimate and stand processes that take place in it. There have been measurements of temperature and humidity and monitored for the appearance of significant leaf and ear pathogens in crops of wheat and barley. The measured values were compared with values measured on standard climatological station for creating a regression model. They were created graphs of linear regression, which were used to determine the reliability of the crop depending on the climatological station. There were also created graphs showing changes in the differential temperature and humidity in stand and standard climatological station. The presence of harmful pathogens was compared with the measured data, and it was established that a certain course of the weather (in particular temperature and humidity) has an effect on the occurrence of the pathogen.
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Vertex and Pixel Shaders for 3D Visualization of grass
Dokoupil, Martin ; Chudý, Peter (referee) ; Kršek, Přemysl (advisor)
This thesis describes the way to create three-dimensional visualization of grass in computer graphic. Contains progress of grass visualization from past to present. Contains shader intro and its use for visualization. Text mention scene graph which has been used for implementation. Text describes three levels of detail and implemetation of waving grass. Text compares frame speed for each level of grass and frame speed for complete visualized grass.
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Rekreační aktivity pylových alergiků ve zvoleném území
Stoklásková, Pavla
The content of the bachelor thesis is to determine through a questionnaire which outdoors recreational activities are pursued by people suffering with pollen allergies, and whether (or how) the allergy sufferers are limited in these activities. For this purpose, Třinec, a town lying at the foot of the Beskydy Mountains in an area with high air pollution, was selected. This thesis also deals with the evaluation of real potentials and real effects of the current state of the socio-recreational and health-hygienic function of forests in places most frequently visited by Třinec residents, i.e. Forest park Třinec and Javorový. The methodology by Vyskot, et al. (2003) is used for the evaluation.
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Microclimate and energy balance characteristics of the stands with different management
ERBEN, Jiří
The present thesis deals with the microclimate and energy balance indicators of 2 habitats with different types of vegetation (wetland, pasture) during the growing season. Mainly moisture and temperature regime and energy fluxes were monitored in the period of 1.4. to 30.9., 2014. All values were dependent on the type of vegetation, and the type and location of the environment. Microclimate analysis was performed on two locations - in a pasture in the basin of Mlýnský stream and wetland habitat in the basin of Horský stream. Both sites are located on the right bank of the Lipno lake. All the necessary meteorological characteristics were measured using automatic weather stations. Indicators of temperatures and humidity of soil and air, received, and the total amount of reflected sunlight and heat balance characteristics - albedo, Bowen ratio, evaporative fraction and heat flows were evaluated. The biggest differences were monitored at heights, in which was measured. In terms of relative humidity, values most varied at canopy level, where the differences were noticeable. The highest mean relative humidity was measured at height of 0.2 m and 2 m on the wetland. As relative humidity even air temperature is dependent on the height at which it was measured. While the height of 2 m, the values at both sites was almost identical, at the canopy level are differences significant. The average temperature values depend on the season, but the largest amplitude of the temperature reached the sites in June. The surface temperature of the soil at the wetland was almost unchanged, contrary to pasture its course was similar to air temperatures series at the canopy level. The soil temperature at 20 cm was almost the same at both sites. In terms of energy fluxes, it was found that the highest latent heat flux of evaporation was in wetland. Sensible heat flux was higher in the pasture. The flux of heat into the ground is bigger during the morning and evening hours on the wetland, however ground heat flux was higher in the pasture during the day.
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Analysis of microclimate of the stands with different management.
ŠACHL, Jiří
Proposed bachelor thesis deals with the issue of the microclimate creation in the vegetation cover. The main focus was put on monitoring of temperature and humidity regime, and solar energy fluxes due to Bowen ratio. Several microclimatic parameters was monitored in four different biotopes with different microclimate regime (red clover, winter wheat, potato and grassland), during the growing season and relied to the different agricultural management.
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