Water losses in the Loučenský brook and Bouřlivec basins and the possibilities of their reduction during the hydrological drought

This thesis deals with the problem of water losses in the Loučenský brook and Bouřlivec basins. It was written on the basis of a project for the state enterprise Povodí Ohře, which dealt with the management of these streams. Loučenský potok and Bouřlivec are the sources of water for the Všechlapy reservoir, which provides a number of functions in the reservoir surroundings. However, the Všechlapy reservoir has been threatened by hydrological drought in recent years. For this reason, it is necessary to determine the water losses in the basin and focus on possible methods to ensure that the reservoir has sufficient water levels to maintain all of its major functions. In the first part of the thesis, the theoretical background related to the issue is explained. In the practical part of the thesis, water losses in the basin are detected mainly on the basis of longitudinal profiling of flows and recorded water withdrawals. Flow measurements were carried out on a total of 43 profiles in five different hydrological conditions with a focus on the dry season. The results show that there is a need to look for reserves in two areas. Firstly, in the management of the ponds, where it appears that a significant amount of water is being lost throughout the basins, and secondly, in the small-scale users who draw..