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Možnosti uplatnění vegetace v protierozní ochraně půdyJanda, Milan January 2000 (has links)
No description available.
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Protierozní ochrana jako prvek zlepšení hospodaření vodou v zemědělské krajiněUrban, Jaroslav January 1992 (has links)
No description available.
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Řešení protierozní ochrany agrotechnickým opatřením v zemědělském družstvu Kelečsko v KelčiSlimáček, Josef January 1900 (has links)
No description available.
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Návrh realizace agroenvironmentálních opatření jako nástroje protierozní ochrany půdyStehnová, Eva January 2015 (has links)
The thesis deals with problems of agri-environmental-climate measures (AECM) in relation to soil erosion. The thesis consists of theoretical part where informations about AECM are described and defined for grant period 2014-2020. AECM are defined which protect the soil before water erosion. The problems of erosion, Cross Compliance and Rural Development Programme for period 2014-2020 are handled in literary search. The area of interest where soil blocs are located is defined in next part of the thesis. The so-called Universal Soil Loss Equation was calculated for chosen soil blocs. After, AECM which protect soil before water erosion are proposed on the chosen soil blocs. The total annual loss of soil is 7395 tonnes and after aplication of AECM the loss of soil is decreased about 1963 tonnes on the value 5432 tonnes/year. There is evident positive influence of AECM in protect soils before water erosion.
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Stanovení ohroženosti pozemků vodní erozí na vybraném územíVlčková, Andrea January 2015 (has links)
The diploma thesis is focused on evaluation of land vulnerability by water erosion in the area of Luh water stream. The area is located next to the Březník and Kuroslepy village in the Vysočina region. Part of the thesis is also the suggestion of the suitable soil protection measures based on the computed analysis. The first part of the thesis consists of the literature review of selected topic and the characteristics of the study area. The second part of the thesis consists of the methodology of the land vulnerability evaluation applied by the "Universal Soil Loss Equation" (USLE Equation) from authors Wishmeier and Smith. Individual factors of the USLE Equation and final result of the analytical process (long-term average annual soil loss) were calculated in ArcGIS software, LS converter software and USLE2D software. Databases ZABAGED(R), BPEJ and DIBAVOD were used as the input data. Subsequently the results visualization into several thematic maps and analytical evaluation (discussion) was done.
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Stanovení ztráty půdy erozí a návrh protierozních opatřeníDřímalová, Veronika January 2015 (has links)
The thesis deals with determination of soil loss by water erosion in the catchment area of Maleník stream and with project of erosion control measures to decrease in erosion. Determination of average long-term loss of soil by water erosion consists in expression of all factors of Universal Soil Loss Equation and multiplying their values. According to the determined results of soil loss, a system of erosion control measures was designed subsequently that reduced erosion below the permissible soil loss. In addition, Modified Universal Soil Loss Equation was calculated and the amount of sediment transported from the catchment area was determined. Finally, maps were made in the ArcGIS program that show study area, erosion in the catchment area and proposed erosion control measures.
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Využití půdoochranných technologií v pěstování řepy cukrové / Use of soil conservation technologies in the growing of sugar beetHybler, Jakub January 2016 (has links)
More recently we meet with many extremes of weather. One such are sudden and heavy rainstorms. Now most these rains endanger the agricultural land the emergence of water erosion. Most sensitive to water erosion are wide row crops, including sugar beet also. For these reasons, in recent years we paid great attention to the impact of tillage effects on soil water erosion.
The aim of this thesis was evaluate the influence of autumn tillage on water erosion soil in the stand of sugar beet, but also on the yield and quality parameters of the crop. A secondary aim was to assess the effect of increasing the leafy ground cover beet on water erosion soil.
For this purpose over the years 2012-2015 based on accurate field trials on lands Agro Chomutice Inc. Experiments were set up in three variants namely shallow loosening (10 cm) deep plowing (25 cm) deep loosening (25 cm). In various growth phases proceeds artificial rainfall. In the first growth phase was not sugarbeet involved either in row and not in the between rows. In the second growth phase of the beet involved in the row between rows but not yet. In the third growth phase has been fully involved growth. Itself artificial rainfall was performed field simulator rain and was observed soil loss from individual variants.
At artificial rainfall it was found that sugar beet is the most threatened by water erosion soil in the early growth phase and at this phase the most evident difference autumn tillage to sugar beets. In the first growth phase of sugar beet, which was carried artificial rainfall, the best results both for deep loosening and deep plowing. In 2012 (24. 5. 2012) was measured with a deep loosening of soil loss of 1.30 t ha-1, representing a decrease of 64.76% compared to the shallow loosening and by 40.91% compared to deep plowing. Conversely, in 2014 (2. 6. 2014) was evaluated as the best variant of deep plowing the soil loss of 0.11 t ha-1. Such loss soil is 78.43% less compared to the deep loosening and lower by 91.41% compared to the shallow loosening. Similar results were achieved for both deep loosening and deep plowing in the later phases of growth, which was carried artificial rainfall. From the results it was found that the sugar beet at later growth phases better resists water erosion. This is illustrated in 2012, when the first artificial rainfall (24. 5. 2012) was observed soil loss of 2.20 t ha-1 for deep plowing. In the second artificial rainfall (6. 6. 2012) 0.03 t ha-1, and the third (1. 8. 2012) have been measured zero loss soil. The same results were achieved in the following experimental years.
On deep loosening achieved the largest root yield (99.71 t ha-1), but the difference between deep plowing (99.32 t ha-1) was only 0.39%. The highest sugar content reached variant with deep loosening (18.95%). When the statistical treatment has not been established between the variants statistically significant difference. The greatest yield root recalculated at 16% sugar content reached variant with deep loosening (122.32 t ha-1), but again the difference between deep plowing (119.81 t ha-1) was only 2.10%.
Results from four years has clearly demonstrated beneficial effect of deep loosening and deep tillage on soil water erosion in the sugar beet crop. Furthermore, it was found that with increasing abundances leaf and root growth of sugar beet decreases danger of water erosion. Sugar beet is the most susceptible to water erosion in the early phases of growth, and at this time was applied deep autumn tillage. For a fully wired vegetation were not detected significant loss soil, and at this time ceases to be a dangerous erosion sugar beet crop. For yield and quality parameters of sugar beet was found positive effect of deep loosening and deep tillage on yield and quality of sugar beet. The least favorable results in all experimental years was achieved in a shallow loosening.
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Problematika tvorby povrchového odtoku a epizodní řešení jeho erozních projevů / Surface runoff generation and its erosion processesKalibová, Jana January 2016 (has links)
Research of model simulations of hydrological data for water resources studies and field and laboratory experiments testing the effectiveness of erosion control geotextiles using rainfall simulators is summarized in this dissertation. The results of the research have been used to suggest a water regime optimisation in the catchment of a former mining pit Medard-Libík. Although agricultural and forestry reclamation measures have been applied, rill erosion still appears on some slopes within the catchment. The soil loss and sediment transport result in the deterioration of the crop yield, cause damage on the road and drainage systems and also influence the quality of water in the lake arising by flooding the former mining pit.
The first part of the dissertation provides a review on surface runoff and its erosion processes. Next, bio-technical erosion control measures on slopes are summarised. The third part of the dissertation is devoted to a simulation of surface runoff on a model slope in the Medard Catchment. The main aim was to test whether the KINFIL model is suitable for the simulation of the effectiveness of erosion control geotextiles and suggest an appropriate erosion control measures for the eroded slopes in the Medard Catchment.
The KINFIL model seems to be a useful tool to quantify the effectiveness of individual erosion control products and measures in order to find the most convenient option. The simulations carried out in the dissertation corresponded to the results of field and laboratory experiments testing the impact of geotextiles on surface runoff and soil erosion published earlier.
A well-balanced rainfall-runoff regime in the Medard Catchment would increase the stability of the landscape, reduce the cost of restoration of the damage caused by erosion to road and drainage systems and improve the water quality by elimination of the sediment transport. The results of this dissertation may be offered to the public administration or private stakeholders to control erosion within the reclamation of areas affected by mining activities.
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Vliv zaniklých krajinných prvků na půdní vlastnosti / Influence of former landscape elements on soil propertiesMatějovský, Jiří January 2016 (has links)
Hedgerows are elements in landscape, creating a landscape structure and influencing soil properties. This thesis is focused on the assessment of impact of the former landscape elements on current soil properties. Study area is located in the Central Bohemian Region, in the district of Pribram. Study plot area is 33 ha and is currently managed as a single large unit without any landscape elements. Assessment of the degree of impact on soil properties was mainly focused on soil depth, stratigraphic profile and organic carbon content. Sampling was carried out perpendicularly to the four selected hedgerows. The deepest soils, as well as the largest percentage of organic carbon were observed in areas of the original occurrence of hedgerows. Places above the hedgerows did not show significantly better soil properties, while at the locations below the hedgerows were identified deeper soils and increased organic carbon content. These findings confirmed the importance of hedgerows and their ability to influence soil properties.
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Využití plovoucího sacího bagru k čištění vodních nádrží a odstraňování přírodních sedimentů / The use of floating suction dredger for cleaning and removal of natural sedimentSedlecká, Šárka January 2016 (has links)
Unconventional technology called "wet method" is a gentle pumping and removal of undesirable sediments not only in ponds and streams, but also in shallow waters, canals, harbors, lakes, recreational water areas and other tanks, decorated in treatment technology and water purification. This is a floating suction dredger WATERMASTER CLASSIC III, which functions as a classic and dragline as one and due to various peripheral devices isvaried uses. This machine is also ideal for repairing the damage during floods because of its versatility.
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