Sedimentace v malých vodních nádržích
| Title in English | Sedimentation in small water reservoirs |
|---|---|
| Authors | |
| Year of publication | 2019 |
| Type | Article in Proceedings |
| Conference | Sedimenty vodných tokov a nádrží |
| MU Faculty or unit | |
| Citation | |
| Keywords | empirical modelling; small water reservoir; |
| Attached files | |
| Description | The uncontrolled reservoir siltation presents a hazard together with the rising number of reservoirs and current climate change. This paper presents the possible methodologies to measure siltation in small reservoir and how to calculate the potential soil water erosion and deposition of the contributing area. The results show that the USLE-based erosion models are suitable for estimation of erosion processes, especially USPED model, which is capable to model erosion and deposition of the material in the same time. Also, both approaches to investigate the development of the reservoir bottom were verified. The use of AUV EcoMapper is appropriate for reservoirs with stable water level between 1 and 100 meters, however the second approach is more suitable for shallow reservoirs. According to observed and modelled sediment budget of reservoirs the supposed reservoir lifetime was determined from 100 to 400 years. The siltation is much higher in the Svacenický reservoir in contrast to Němčický reservoir (Suchý creek catchment), which corresponds to bigger catchment area, higher percentage of arable land and more variable relief. |
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