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Hlodavci jako škůdci na zemědělské produkci
Vargová, Michaela
The thesis critically evaluates the existing knowledge on the importance of rodents as an important pests of agricultural crops. The main part of this thesis, i.e. the literature review, focuses on a brief description of the damage caused by rodents in the global context, and subsequently in the Czech Republic. The thesis focuses on the possible causes of this damage. Furthermore, the thesis mentions rodent species and their distribution according to food consumption, followed by a description of economic and sanitary damage. The thesis also mentions preventive measures against rodents, monitoring, methods of damage control and their economic impact. The thesis concludes by mentioning possible gaps in knowledge of the impact of annual crops on damage levels and potential alternative options for rodent damage control.
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Vliv sucha na rostlinnou produkci v kraji Vysočina
Čižmariková, Žaneta
The Vysočina region is not a homogeneous whole in terms of soil quality and climate. A European watershed runs across the Vysočina region, which divides the climate in the Czech Republic into maritime and continental. The total annual precipitation in the Vysočina region in the years 1961-1990 averaged 640 mm, while in the monitored years (2011-2014-2015-2016-2018) it decreased by 62 to 121 mm. The average annual temperature in the Vysočina region, which has been 0.4 oC lower for a long time compared to the rest of the Czech Republic, increased by 1.1 to 2.2 oC in the same period (long-term average 7.1 oC). Yields of monitored crops in the Vysočina region and the rest of the Czech Republic changed irregularly (up to 10%) during the year and year-on-year under the influence of several biotic and abiotic factors. Lack of water (drought) is and will be a bigger problem for the Vysočina region (in agriculture and forestry) than the average increase in annual air temperatures in recent years. Reducing the effects of drought requires a complex of measures with an emphasis on maintaining water in the landscape, ie on agricultural and forest land, and the need to care for its fertility in several directions.
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Classification of selected agricultural crops from time series of Sentinel-2 and PlanetScope imagery in Kutnohorsko model area
Kuthan, Tomáš ; Kupková, Lucie (advisor) ; Potůčková, Markéta (referee)
Classification of selected agricultural crops from time series of Sentinel-2 and PlanetScope imagery in Kutnohorsko model area Abstract The thesis is focused on the analysis of spectral characteristics of selected agricultural crops druring agriculutural season from time series of Sentinel -2 (A and B) and PlanetScope sensors in the model area situated around the settlements of Kolín and Kutná Hora. It is based on the assumption that the use of multiple dates of image data acquired crops in different phenological phases of the crops allows better identification of crop species (Lu et al., 2004). The aim of the thesis was to analyse the characteristics of the seasonal course of spectral features of selected agricultural crops (sugar beet, spring barley, winter barley, maize, spring wheat, winter wheat, winter rape) and to determine the period of the year suitable for the differentiation of individual crops. Another aim of the thesis was to classify these crops in the model area from time series of two above-mentioned sensors and to compare the accuracy of the pixel and object-oriented classification approach for multitemporal composites and the accuracy for monotemporal image from the term when the individual crops are clearly distinguishable. The training and validation datasets and the classification mask...
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Zhodnocení spolehlivosti a návrh správného postupu pro hodnocení škod černou zvěří na zemědělských plodinách
Klein, Václav
This bachelor thesis is dealing with methodology and evaluation the damages caused by wild boar on agriculture crops, more specifically corn and wheat. As a place for this thesis being done, area in Nebahovy was chosen. I conducted the research with modern drons with camera and also with primitive walking method in this area. I comapred results of both from the perspective of time requirement, accuracy and difficulties. To be able to compare modern and primitive method I had to build a method of counting the quantity and method of volume of production. The method of taking pictures from the air was chosen as the most precise method. This method was also the fastest. It is because of recording every part of the place and the short time of evaluation. The walking method was the best from the financial point of view, because only small amount of money is used during this investigation.
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Škody bobrem evropským na zemědělských plodinách a na dřevinách na Moravě
Kolomiichenko, Kseniia
The thesis deals with the influence of an innate activity of the European beaver (Castor fiber) on agricultural crops and forest cover near the watercourse of Moravia and it maps its historical and current presence. The base for the theoretical part were Czech and foreign literary sources. In the practical part there were used the data from personal field research and other institutions. Field mapping of tree damages caused by the beaver took place on the territory of the national park Podyji, according to the classical methods of beaver monitoring; the data about the damage in agriculture were collected from AOPK ČR. The obtained data follow that there is a close connection between a natural way of life of the European beaver and observed damages on agricultural and forest cover. It also shows that the number of preventive measures, which are recommended, will not be enough to prevent damages, and thus it is necessary to combine them consistently.
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Classification of selected agricultural crops from time series of Sentinel-2 and PlanetScope imagery in Kutnohorsko model area
Kuthan, Tomáš ; Kupková, Lucie (advisor) ; Potůčková, Markéta (referee)
Classification of selected agricultural crops from time series of Sentinel-2 and PlanetScope imagery in Kutnohorsko model area Abstract The thesis is focused on the analysis of spectral characteristics of selected agricultural crops druring agriculutural season from time series of Sentinel -2 (A and B) and PlanetScope sensors in the model area situated around the settlements of Kolín and Kutná Hora. It is based on the assumption that the use of multiple dates of image data acquired crops in different phenological phases of the crops allows better identification of crop species (Lu et al., 2004). The aim of the thesis was to analyse the characteristics of the seasonal course of spectral features of selected agricultural crops (sugar beet, spring barley, winter barley, maize, spring wheat, winter wheat, winter rape) and to determine the period of the year suitable for the differentiation of individual crops. Another aim of the thesis was to classify these crops in the model area from time series of two above-mentioned sensors and to compare the accuracy of the pixel and object-oriented classification approach for multitemporal composites and the accuracy for monotemporal image from the term when the individual crops are clearly distinguishable. The training and validation datasets and the classification mask...
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