National Repository of Grey Literature 85 records found  previous11 - 20nextend  jump to record: Search took 0.00 seconds. 
Protection of the built-up area of the municipality by the proposal of water management measures in the river basin
Majkus, Martin ; PhD, Ing František Pavlík, (referee) ; Dumbrovský, Miroslav (advisor)
The aim of this paper is to evaluate the important factors that determine the flood risk of the built-up area in the surveyed location. Also, it is necessary to assess the intensity of erosion treat to the soil and then propose comprehensive protective measures in the catchment areas of critical points and profiles, which will reduce these unfavourable values. The introductory part will summarize the existing knowledge and methods for determining the values of surface runoff and the degree of erosion risk. In the design part, surveyed locality analysis will be proved. Furthermore, the suitable water management measures will be proposed. The measures will ensure the protection of built-up area of the municipality and improvement of erosion conditions. For analysis of the area and for propose of measures were used ArcGIS-ArcMap and DesQ-MaxQ software. Obtained information was then processed in MS Excel and Word editors.
Design of erosion and flood control measures in the cadastral area of Palkovice
Ujházy, Adriana ; Uhrová,, Jana (referee) ; Sobotková, Veronika (advisor)
This diploma thesis deals with design of soil erosion control measures and flood control measures in the cadastral area of Palkovice. The request for construction came from the village Palkovice. It sits at the foothills of Beskydy with a very sloping terrain. In addition, there are larger soil complexes without any erosion control measures, which leads to degradation and reduction of soil yields. The introduction summarizes desired objectives. Then thesis deals with the description and analysis of the current state of the village and its solution. The solution of technical measures is depicted in the situation and elaborated in more detail. The drawings are enclosed in attachment. The conclusion summarizes the content of the work, achieved goals and benefits.
Identification and measurement of rill erosion in the farm landscape
Vaňousová, Martina ; Larišová,, Lucie (referee) ; Sobotková, Veronika (advisor)
Due to water erosion, there is a loss of soil, reduced fertility, soil prices, increased costs in ag-riculture and water management due to clogging of watercourses and reservoirs and affecting the quality of water resources, threats to urban and infrastructure. One form of water erosion is gully erosion. Three erosion gullies were selected in the bachelor thesis. Their areas of interest and the methods used were described. In the case of erosion gully, their axes and transverse profiles were measured using soil erosion bridge. Volumes of eroded soil were obtained by eva-luating photographs taken with a camera from soil erosion bridge. The results show that from the erosion gully in the Embassy Ústí with a total length of 206.5 m, an average width of 2.8 m and a catchment area of 2.6 ha, soil with a total volume of 69 t was removed. In the Ostrov Em-bassy, the total soil loss from the 201 m long erosion gully with an average width of 1.8 m and a catchment area of 1 ha was set at 45.4 t. In the Embassy of the Sebranice, the total volume of soil removal from the erosion gully 217 m long, average width 2.3 m and the catchment area 9.8 ha was determined to be 45.2 t. Soil samples were taken near the erosion gullies – it was deter-mined bulk density and grain size curves.
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.
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.
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.
Revitalization of a Small Water Reservoir in the Níhov Cadastral Area
Matoušek, David ; Doležal, Petr (referee) ; Menšík, Pavel (advisor)
Thesis has main goal to introduce the topic of small water reservoirs as an important regional element, which has added value to creation and sustaining of ecological stability, improvement local microclimate, the quality of water in catchment area and groundwater supply. Thesis is divided into two parts. In the first theoretical part thesis describes the topic of small water reservoirs and the key factors affecting their environmental state and their self-cleaning abilities. In the second practical part are created conceptual design of revitalization to solve the unsuitable state of water reservoir in Níhov.
Studie odtokových poměrů v povodí bezejmenného levostranného přítoku Svratky řkm 93,8 v k. ú. Ujčov
Mach, Arnošt
The diploma thesis is focused on the assessment of runoff conditions in the selected location for a purpose in form of the proposal complex system of measures. First of all was created literary research on topics like hydrology, forest roads, and measures for water retention. Next were in detail described the natural conditions of the chosen location. Thanks to the field survey were possible to identify critical locations for increased water drainage and determine risk factors. Based on the information gathered evaluated runoff conditions in the studied area and created a rainfall-runoff model in open-source software HEC-HMS. Lastly were designed measures for enabling the safe flow of water and measures for an increase in overall ecological stability.
Identification of suitable places for retaining water in the landscape in the landscape in watersheds of the fourth order in the Trkmanka watershed
Valný, Patrik ; Larišová, Lucie (referee) ; Sobotková, Veronika (advisor)
The bachelor thesis is focused on the identification of suitable places for water retention in the landscape. The evaluated area consists of three selected catchments of the 4th order in the Trkmanka River basin in the South Moravian Region. In the first part of the work the analysis of the area of interest was carried out. Using ArcGIS, USLE2D and DesQ – MaxQ software, erosion and runoff conditions were evaluated to determine the critical points and critical profiles threatening the intravilanias of the municipalities by surface runoff and sediments. Also, the locations of the final profiles that threaten, for example, local roads were identified, these were then subjected to a field survey and photodocumentation was taken. Subsequently, small reservoirs were designed at the assessed and morphologically suitable locations. Finally, from the evaluated erosion and runoff data, a ranking of vulnerability was established.
Analysis of erosion and runoff conditions in the village of Nelepeč as a basis for a study of runoff conditions in the water landscape management
Kasalová, Klára ; Kulihová, Martina (referee) ; Sobotková, Veronika (advisor)
The bachelor thesis is focused on the analysis of erosion and runoff conditions in the cadastral area of Nelepeč in the South Moravian Region. ArcGIS, USLE 2D and DesQ-MaxQ are used for the analysis. After the determination of the current erosion and runoff conditions, a proposal for erosion control measures for the entire cadastral area comprehensively and further for the determined problem area follows. The proposed measures should ensure a reduction in the average erosion shear on agricultural land and protection of the village's intramural area. The thesis concludes with an evaluation of erosion and runoff conditions after the design of protective measures, which are then compared with the situation before the design.

National Repository of Grey Literature : 85 records found   previous11 - 20nextend  jump to record:
Interested in being notified about new results for this query?
Subscribe to the RSS feed.