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The aim of the thesis "Soil protection against water erosion in the cadastral Jinačovice" is to evaluate the problems of soil erosion and erosion prevention. The work consists of two parts. In the first part the issue of erosion is expressed using relevant printed and electronic sources. The second part deals with the analysis of current conditions and the current status of land use in terms of susceptibility to water erosion. All the erosion factors will be assessed based on the findings. The average long-term loss of land will be evaluated using the universal equation for calculating the USLE soil loss and the degree of erosion hazard to lands will be determined. As a result an erosion control measure (organizational, argi-technical and technical) will be designed and their effectiveness with regard to allowable loss will be assessed.

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Orientador: José Augusto de Lollo / Resumo: A erosão, especialmente do tipo acelerada, é um fenômeno com grande potencial de causar degradação ambiental, diminuindo a produção de alimentos, provocando a desertificação de áreas, o assoreamento de rios, o deslizamento de solo, entre outros. Dessa forma, o estudo dos processos erosivos e suas consequências é de fundamental importância em diversas áreas do conhecimento, exatamente para que possam ser propostas formas de remediar os casos já existentes e prevenir possíveis próximas ocorrências. Dentre os tipos de erosão existentes destaca-se a hídrica, e os parâmetros envolvidos nesse cenário podem ser diversos, envolvendo tanto fatores naturais, como as propriedades do solo, o clima e o relevo, quanto antropogênicos, como a ocupação do solo e técnicas de manejo. Além disso, uma ferramenta muito utilizada nos estudos de suscetibilidade à erosão é o SIG, ou Sistemas de Informações Geográficas, devido à sua capacidade de armazenar, manipular, analisar e apresentar dados distribuídos espacialmente e georreferenciados. O uso dessa ferramenta proporciona tanto a melhora na precisão dos valores obtidos, quanto diminui o tempo consumido durante os cálculos. Assim, o objetivo deste trabalho foi avaliar os resultados de diferentes abordagens de avaliação do potencial de ocorrência de erosão na Bacia Hidrográfica do Córrego do Jaú, em Aparecida D’Oeste – SP, envolvendo diversos parâmetros naturais e antrópicos, e utilizando sistemas de informações geográficas, de forma a verificar a ... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Erosion, especially the accelerated type, is a phenomenon with high potential to cause environmental degradation, declining food production, causing desertification of areas, siltation of rivers, landslides, among others. Thus, the study of erosion and its consequences is of fundamental importance in many areas of knowledge, so that ways to remedy existing cases of it and prevent possible subsequent occurrences can be proposed. Among the existing types of erosion, the one caused by water stands out, and the parameters involved in this scenario may be diverse, involving both natural factors, such as soil properties, climate and relief, and anthropogenic ones, such as soil occupation and management. In addition, a tool widely used in erosion susceptibility studies is GIS, due to its ability to store, manipulate, analyze and present spatially distributed and geo-referenced data. The use of this tool provides both the improvement in the accuracy of the values obtained and the reduction of time consumed during calculations. So, the objective of this study was to evaluate the results of different approaches to assess the potential for erosion occurrence in the Córrego do Jaú watershed, in Aparecida D'Oeste – SP, involving several natural and anthropic parameters, and using geographic information systems, in order to verify the applicability of these methods in the study basin. For the proposed study, the methods of the Natural Vulnerability to Erosion (VNE) and adaptations of the U... (Complete abstract click electronic access below) / Mestre

In this master's thesis Suggest the protection of soil erosion in the cadastral area Jedovnice, I perform the analysis of specific factors influences erosion processes and I find the size of the average soil runoff. It also determines by two different methods (old and new) degrees of erosion threat. The detected values degrees of erosion threat, according to different methods differ significantly. Methods differ mainly in the value of R-factor and the limits of permissible soil loss. Main objective is on the average values soil runoff, propose appropriate antierosion measures with regard to the permissible loss of land. I suggest, for both calculations by different methods, organizational erosion control measures. At the end I evaluate two variants of the selected organization erosion control measures and compare their effect on soil erosion in Jedovnice. Keywords: soil protection, water erosion, erosion control measures, USLE

This thesis on the topic Evaluation of the endangerment of land by water erosion in the selected area describes the determination of endangerment of land by water erosion in the catchment area of creek of Čebín, in the district Brno-venkov. The first literary part of thesis marginally describes the land issues which continues with major issues of soil erosion. The next part of thesis describes the characteristic of selected area. The main part of thesis is based on calculations of factors of the universal equation to determine the long term average soil loss by water erosion according to Wischmeier and Smith. Calculations were made in the programs ArcGIS, USLE2D and LS converter. Based on the evaluation of endangerment of land by water erosion were designed erosion control steps according to the current conditions of farming. The thesis is supported by map documentation which is processed in the program ArcGIS.

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The aim was to evaluate the erosion and drainage conditions in cadastre Sedlnice. To propose land erosion and water management measures to optimize land erosion and improve runoff conditions of the landscape.

In this diploma thesis I dealt with the water erosion of soil in the area of Libotovský potok. The basin was divided into eight erosively enclosed units. I have counted the average long-term loss of land without anti-erosive measures and with anti-erosive measures as well as the transportation of floodplains for both of these situations. The aim of this work was to evaluate the severity of water erosion and to propose anti-erosion measures by using the universal equation (USLE) and modified equations (MUSLE). According to the results of the universal equation, it was clear that there was a very strong erosion in the river basin. The total loss of the land was 12 419.88 tones per year. Therefore, both organisational (leaving post-harvest remnants) and agro-technical measures (curb contouring) were proposed there in order to reduce the values of Factors C and P. After that, the reduction in the loss of the has ended up on 2 628.93 tones per year. The final value of transportation of the floodplains without erosion measures was 30 671,77 tones. After changing the sowing technologies and the change in the values for the factors C and P, it decreased to 5 203,32 tones. The results of the diploma thesis show that the water erosion of the soil is a large and frequent problem of many agricultural lands, especially those where soil is left without any protective effect of vegetation and also where the broad-leaved crops are grown. An important factor that can significantly help to reduce erosion is also the right way of the soil cultivation.

The thesis entitled Determination of soil loss by erosion and erosion control measures proposal deals with the calculation of soil loss by erosion from watershed of Dolnodubňanský stream. First, soil erosion is described generally and possibilities of erosion control measures. Next part is focused on the calculation of erosion risks in the mentioned watershed. The calculation is done using USLE according to Wischmeier and Smith. The calculation was then performed by programs USLE2D, LS converter and ArcGIS. Erosion control measures are then propose depending on the final stage of erosion hazard. All the calculated values are shown graphically in the map outputs.