The diploma thesis deals with the topic of small reservoirs. In the theoretical part the history, division of the reservoirs and technical compositions are described. Furthermore the thesis deals with the legislation and the possible technical solution within the frame of landscaping. The state of purpose reservoirs is settled in the basin area of Zborovský stream. The work propose the repairs of: dam, drain or the spillway. and the maintenance of bank vegetation and state of the mud amount in the basin as well. The erosion threat and the soil washes from the surrounding agricultural grounds are also described. The Universal soil loss equation - USLE according to Wischmeier and Smith (1978) was used for the calculation.

From the Proceedings of the 1978 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 14-15, 1978, Flagstaff, Arizona / Water yield studies and flood control surveys often necessitate estimating transmission losses from ungaged watersheds. There is an immediate need for an economical method that provides the required accuracy. Analysis of relations between stream order, drainage area, and volume of channel alluvium existing in the various orders is one means of estimating loss potential. Data needed for the stream order survey are taken from aerial photos. Stream order is analyzed using stereophoto maps. Stream lengths taken from the maps are combined with average channel width and depth data (determined by prior surveys) to estimate volumes of alluvium involved. The volume of channel alluvium in a drainage network is directly related to the stream order number of its channels. Thus, a volume of alluvium within a drainage network (with a known transmission loss potential) may be estimated by knowing the order of each length of channel and the drainage areas involved. In analyzing drainage areas of 56-mi² or less, 70 to 75 percent of the total drainage network length is contained within first and second order channels; yet, these constitute less than 10 percent of the total transmission loss potential of the areas. Analysis of stream order and drainage area versus volume of alluvium relations allows preliminary estimates of transmission loss potential to be made for ungaged areas.