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Information Page of SAS Organisation

PhD. Topics

Institute of Hydrology

Water flow overgrowth by aquatic vegetation and impact of the vegetation on stream flow conditions
PhD. program
Year of admission
Name of the supervisor
Ing. Yvetta Velísková, PhD.
Receiving school
Fakulta záhradníctva a krajinného inžinierstva SPU
Water flow overgrowth by aquatic vegetation is a very common problem of surface streams, especially in flat areas. Preconditions for its growth is mainly in the so-called growing season. Aquatic vegetation reduces the flow profile of watercourses, deforms the velocity profile, and thus also affects the transport processes in the surface watercourse. In addition, the surroundings of watercourses in the lowlands are often heavily farmed with the using of fertilizers. Then, it results an increase in the concentration of nutrients in the watercourse that support the growth of aquatic vegetation. The content of the dissertation will be the quantification of the influence of aquatic vegetation on the flow conditions in the surface stream. The influence of nutrient content and temperature on the overgrowth rate of watercourse beds will also be analyzed and quantified. A prerequisite for the successful achievement of the goals is a thorough research of the current state of knowledge of the given issue, a theoretical analysis of possible methodological procedures, performance of field measurements at a selected location using modern instrumentation as well as the application of statistical analysis methods.