Use of terraces to reduce overland flow and soil erosion, comparison of the HEC-HMS model and the KINFIL model application

Darya Fedorová, Hana Bačinová and Pavel Kovář
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Hana Bačinová: Department of Land Use and Improvement, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic
Pavel Kovář: Department of Land Use and Improvement, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic

Soil and Water Research, 2017, vol. 12, issue 4, 195-201

Abstract: In our study, a system of seven natural terraces interspersed with six field belts situated at the Knínice locality (the Ore Mts., North-West Bohemia) was selected as the experimental catchment area. Overland flow was computed using two different methods: the kinematic wave method and the SCS dimensionless Unit hydrograph (UH). For the kinematic wave method calculations the KINFIL software was used; for SCS dimensionless hydrograph the HEC-HMS software was applied. The results compare hydrographs with N-year recurrence of rainfall-runoff time, where N = 10, 20, 50, and 100 years. The comparison provides hydraulic results with terraces and without terraces computed using both mentioned software products. Although two different methods of overland flow computation were performed, the input data obtained from geodetic and hydrological measurements were identical. Results of the comparison are presented and discussed.

Keywords: extreme rainfall; infiltration; kinematic wave; soil protection; Unit hydrograph (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlswr:v:12:y:2017:i:4:id:160-2016-swr

DOI: 10.17221/160/2016-SWR

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