Influences of Catchment and River Channel Characteristics on the Magnitude and Dynamics of Storage and Re-Suspension of Fine Sediments in River Beds
1
K-water Research Institute, Korea Water Resources Corporation (K-water), 200 Sintanjin-Ro, Daedeok-Gu, Daejeon 34350, Korea
2
Fluvial Dynamics Research Group, Department of Environment and Soil Sciences, University of Lleida, Plaça de Víctor Siurana, 1, 25003 Lleida, Spain
3
Catalan Institute for Water Research (ICRA), 17003 Girona, Spain
4
Faculty of Forest Sciences and Natural Resources, Universidad Austral de Chile, Independencia 631, Valdivia, Región de los Ríos, Chile
5
Department of Biological and Agricultural Engineering, North Carolina State University, Raleigh, NC 27695, USA
6
Institute for Geosciences and Environmental Research (IGE)-University Grenoble Alpes/IRD, 621 Avenue Centrale, 38400 Saint-Martin-d’Hères, France
7
Department of Agricultural and Environmental Science, University of Bari Aldo Moro, 70126 Bari, Italy
8
School of Building & Civil Engineering, Cork Institute of Technology, Rossa Ave, Bishopstown, T12 P928 Cork, Ireland
9
School of Building and Society, University of Lyon, 92 Rue Pasteur, 69007 Lyon, France
10
Mediterranean Ecogeomorphological and Hydrological Connectivity Research Team, Department of Geography, University of the Balearic Islands, Carretera de Valldemossa, km 7.5, 07122 Palma, Spain
11
Institute of Agro-Environmental and Water Economy Research, INAGEA, University of the Balearic Islands Carretera de Valldemossa, km 7.5, 07122 Palma, Spain
12
Institute of Earth and Environmental Science, University of Potsdam, Am Neuen Palais 10, 14469 Potsdam, Germany
13
Forest Sciences and Technology Centre of Catalonia, Carrer de Sant Llorenç, 0, 25280 Solsona, Spain
*
Author to whom correspondence should be addressed.
Water 2019, 11(5), 878; https://doi.org/10.3390/w11050878
Received: 14 March 2019 / Revised: 21 April 2019 / Accepted: 24 April 2019 / Published: 26 April 2019
(This article belongs to the Special Issue Modeling of Soil Erosion and Sediment Transport)
Fine particles or sediments are one of the important variables that should be considered for the proper management of water quality and aquatic ecosystems. In the present study, the effect of catchment characteristics on the performance of an already developed model for the estimation of fine sediments dynamics between the water column and sediment bed was tested, using 13 catchments distributed worldwide. The model was calibrated to determine two optimal model parameters. The first is the filtration parameter, which represents the filtration of fine sediments through pores of the stream bed during the recession period of a flood event. The second parameter is the bed erosion parameter that represents the active layer, directly related to the re-suspension of fine sediments during a flood event. A dependency of the filtration parameter with the catchment area was observed in catchments smaller than ~100 km2, whereas no particular relationship was observed for larger catchments (>100 km2). In contrast, the bed erosion parameter does not show a noticeable dependency with the area or other environmental characteristics. The model estimated the mass of fine sediments released from the sediment bed to the water column during flood events in the 13 catchments within ~23% bias.
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Keywords:
bed erosion; catchment area; filtration; sediment accumulation; sediment bed fluidization; sediment re-suspension
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MDPI and ACS Style
Park, J.; Batalla, R.J.; Birgand, F.; Esteves, M.; Gentile, F.; Harrington, J.R.; Navratil, O.; López-Tarazón, J.A.; Vericat, D. Influences of Catchment and River Channel Characteristics on the Magnitude and Dynamics of Storage and Re-Suspension of Fine Sediments in River Beds. Water 2019, 11, 878.
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