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Porovnání PK a KN držby pozemků a posouzení erozního ohrožení při postupném zvětšování ploch orné půdy
KOVÁŘOVÁ, Kristýna
The aim of this work is to clarificate water erosion issues, which were compared by study and analysis of history in a selected area. In the literature review of this study, evolution of agriculture based on land and political ownerships is described. The next things explained in this study are erosion, its causes, repercussions and ways how to fight erossion. The chosen area was cadastral territory Bavorovice. There were used historical maps from years 1827 and 1972, which were landed by cadastral workspace in České Budějovice. For the analysis, historical maps from years 1827 and 1972 were provided by cadastral office in České Budějovice. The maps were compared with a current state after finished KoPÚ. In those maps as well as in the actual cadastral map a few land fields were selected for calculation of average soil loss per year in solved time periods. For the calculation, (of average soil loss) universal equation for average soil loss from land by Wishmaier and Smith was used, which is used. This equation is used for KoPÚ projects as well. The results were evaluated and compared in conclusion of this study.
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Návrh protierozních opatření v modelovém projektu komplexní pozemkové úpravy
NOVÁKOVÁ, Tereza
The topic of my thesis deals with the proposal of erosion control measures in a model comprehensive landscaping project. Literature research is used to explanation of basic terms, to familiarization with problems of land adjustment, water erosion and erosion control measures, but also with laws and regulations. The second part is dedicated to the proposal of erosion control measures. In program ArcGIS have been identifited 16 drainpaths, for which have been calculated surface drain and proposal erosion control measures. The results are processed into clearly tables.
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Intercrops and their use in erosion protection
KLÍR, Josef
This Bachelor's thesis is aimed to assess the effects of erosion intercrop included in crop rotations. Erosion losses will be evaluated in the cadastral area Předenice, located in the pilsen region. Erosion losses will be evaluated for current crop rotation LUKRENA a.s. and compared the results with the inclusion of intercrops in crop rotation.
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The influence of landscape changes on erosion and runoff
Uhrová, Jana ; Toman,, František (referee) ; Váchal,, JAN (referee) ; Dumbrovský, Miroslav (advisor)
The aim of this thesis is to evaluate the influence of land use changes on erosion and runoff conditions. For the purpose of the evaluation, two catchments with different areas and pedological characteristics were selected (the catchment of the river Luha and the catchment of the Hubenov reservoir). In these catchments, a comparison of 26 selected land covers was conducted. The individual land covers were evaluated first in four seasons of the 1950s and 1990s, second according to the today's status of landscape by means of a detailed yearly evaluation conducted between 2002 and 2013, and third according to a land cover conceptual design. Analyses of not only land cover, but also geomorphological, pedological and hydrological conditions were carried out for both of the catchments by means of geographic information system (GIS) tools. The quantification of soil loss was performed by means of two methods – the method USLE with the use of ArcGIS program and the soil loss model WEPP. The crucial factor of the runoff evaluation of the preset end profiles with respect to the formation of concentrated runoffs and their catchment areas was the hydrological model DesQ-MAXQ. The selected land cover scenarios of the river Luha were then exposed to the conditions of a real rainfall that occurred in 2009 and that resulted in floods in the area. Furthermore, a rainfall-runoff model was created for this catchment area in HEC-HMS; the land cover scenarios were again subjected to the above-mentioned real rainfall. The land use changes of the catchment area of the reservoir Hubenov were assessed also with respect to the concentration of substances in the profiles studied.
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The issue of erosion and runoff processes in concentrated flow path
Drongová, Katarzyna ; Podhrázská,, Jana (referee) ; Toman,, František (referee) ; Dumbrovský, Miroslav (advisor)
The thesis deals with analysis of factors contributing to the development of ephemeral gully erosion on area of the Czech Republic. Method used to direct measurements of ephemeral gully erosion was developed. The statistical sample of gullies was measured to describe the characteristics of ephemeral gullies. Statistical methods were used to compute simple and multiple linear regression models. The models describe relationships between ephemeral gully parameters or factors contributing to development of ephemeral gully. The thesis is concentrated with the development of methodology for prediction the occurrence and prediction of parameters of ephemeral gullies. The methodology can be used to design the optimal erosion control measures in the conditions of the Czech Republic.
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The design of erosion control measures in a small basin
Prchlíková, Simona ; Kameníčková, Ivana (referee) ; Doležal, Petr (advisor)
Main goal of this bachelor thesis was the proposal for protection against erosion in selected river basin. Digital model of terrain was created with the help of ArcGis tools. Average yearly erosion wash off was determined by calculation in ArcGis software. The assessment was determined by two factors that influence threat level for particular area. The goal is to highlight the differences between the levels of threat by water erosion after two various rain types. Selected erosion control measures were suggested for the worse option. Chosen appropriate measures were as follows: grassing, erosion control crop rotation and interruption of slope by furrow. Subsequently, new erosion control measures were implemented into the calculation of new state of threatened area. In the final comparison, after implementing erosion control measures, it was a significant and noticeable improvement in conditions. Solution respects trend of water retention in the landscape and use of low-cost measures.
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Study of possibilities protection against rural zone water
Matějková, Jana ; Roubcová, Ing Radka (referee) ; Milerski, Rudolf (advisor)
This bachelor thesis deals with the first part of surface runoff and measures to combat this phenomenon. It explains what it is surface runoff, and what are the most common methods to protect against soil and surface runoff caused by water erosion on slopes. The second section paper examines the threat to the village Otaslavice to Vyškovsko rural area with water. The solution aims to use existing facilities for drain a surface water and the in capacity in relation to n-year occurence of torrential rainfall and runoff caused by them. For the valuation of drain age is used directive to calculate to the drain age of VMP and for as segment the capacity of waters equipment.
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