| Název článku: | Srovnání možností využití semidistribuovaných a distribuovaných srážkoodtokových modelů v lesnické hydrologii na příkladu povodí Ostravice |
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| Číslo: | 1 |
| Rok: | 2011 |
| Autor: | Jan Unucka, Milan Jařabáč, Veronika Říhová, Michaela Hořínková, Jozef Richnavský, Boris Šír, Martin Adamec, Dušan Židek, Ondřej Malek, Martin Ďuricha, Michal Podhorányi, Peter Bobál, Branislav Devečka, Vladimíra Kolářová, Vlaimír Těthal, Marie Vyležíková, Ivan Mudroň, Peter Spál |
Effect of forest rainfall-runoff conditions and erosion proces often raises the debate among scientists and onthe other hand, it largely affects a land use planning. This efect also confirms long-term hydrologic conditions and erosion processes on small forest catchments. This method is traditional in the studied landscape relationships. In situations, where we want to follow these processes on a larger scale, above the spatial scale of small forest basins, and in situations where we want to simulate and predict possible scenarios, it is possible to use analytical tools like geographic information systems (GIS) and numerical hydrologic models – the rainfall-runoff models, hydrodynamic models and dynamic erosion models. The capabilities of these tools are established on the Ostravice River for real hydrosynoptic situations. Several rainfall-runoff episodes and normal regional rainfall with low saturation of convective watershed and torrential rainfall with higher saturation basin were selected. Results were obtained using different methods of transformation in the hydrological basin scale (Horton, Green-ampt, SCS-CN) and semidistributed (HYDROG, HEC-HMS), and distributed models (SIMWE, MIKE SHE) confirm the impact of rainfall on forested land-runoff relations. Final testing of the model shows good agreement for semidistributed and distributed models.
