Change of land cover and its impact on surface runoff and water retention capacity of the landscape

The aim of this study is quantification and evaluation of surface runoff and water retention capacity of the landscape depending on land cover in Janovice u Frydku-Mistku in Moravia. For that selected catchment area were analyzed land cover, hydrological, geomorphological and hydropedological conditions using geographical information system (GIS) tools and database data. In the analysis were also identified 8 critical points in this area, where the concentrated surface runoff enters into the village. In the next step water retention capacity was evaluated in selected catchment area with current land cover as well as the volume of direct runoff in watersheds of determined critical points. In selected catchment area there were designed adaptation measures and the significance of land cover change was determined in relation to the water retention capacity of the landscape and direct runoff. Both the water retention capacity and the runoff were calculated using the CN curve number method and the hydrological model DesQ-MaxQ.