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Posouzení erozního ohrožení vybraných svahů na území obce Litochovice
BABKA, Václav
Erosion is now a major global problem. In my thesis I focused on its impact on land in the cadastral area of the village of Litochovice in the South Bohemian Region near the district town of Strakonice. The content of the first part of the thesis is an ex planation of the problem of erosion, especially water erosion, its causes and con sequences, as well as some possible erosion control measures that can suppress water erosion or at least mitigate its consequences. However, other types of soil erosion are also mentioned. In the second part of the thesis, I assessed individual plots in terms of erosion risk using the LPIS application and suggested suitable farming methods, erosion con trol measures and seeding practices using the application Protierozní kalkulačka.
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Vyhodnocení ztráty půdy vodní erozí ve vybraném území
Teplý, Lukáš
Diploma thesis deals with the evaluation of threats on agriculture land by water erosion in the cadastral area of village Čikov before and after proposing of counter – erosion measures. For the calculation of erosion was used Universal equation (USLE) according to Wischmeier and Smith. The analytical operations leading to the calculation individual factors Universal equation and average long-term loss of soil by water erosion were made using the software ArcGIS, USLE2D and LS – Converter. Partial analysis are presented in the form of map outputs. In the interest area, after the calculating of the USLE, it was found that on 30,39 ha occurs very strong erosion which represents 4,73 % of the solved area. Strong erosion occurs on 36,56 ha (5,68 %), medium erosion on 229,94 ha (35,75 %) and slight erosion on 346,33 ha (53,84 %). Thanks to the proposed counter – erosion measures, very strong erosion in the interest area was completely eliminated. Strong erosion was reduced to only 2,52 ha (0,39 %) and medium erosion to 74,79 ha (11,58 %). Slight erosion increased to 566,21 ha (88,03 %).
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