Zhodnocení ohroženosti zemědělských pozemků vodní erozí a návrh protierozních opatření ve vybraných k.ú. v okrese Olomouc

Abstract

This diploma thesis deals with water erosion on agricultural lands in selected cadastral territories in the Olomouc district. Places of interest fall into the cadastres Dlouhá Loučka, Paseka, Komárov, Řídeč a Mladějovice. The literary research part of the thesis deals with the problems of water erosion, its negative effects, anti erosion measures, and last but not least, the characteristics of the studied area. The practical part is focused on calculating the average long-term loss of soil using the USLE equation. After the calculations, according to sowing processes, it was calculated, that total of 27 % of soil blocks is extremely vulnerable to water erosion. The worst situation was found on soil block 6001/5, where the long-term average annual land loss has reached 34,6 t·ha-1·rok-1. Depending on the calculated values were then erosion control measures designed to protect the soil from the effects of water erosion. In case of the most endangered soil blocks, technical erosion measures were also proposed. Part of the work is photographic documentation and a map attachment created in ArcGIS.