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Many formulas derived from a large range of different approaches have been created to predict sediment transport. In contrast to lowland gravel-bed rivers, a small number of studies have tried to predict sediment transport in torrents (stream gradients higher than about 5%). Bedload dynamics prediction in steep headwater channels is challenging mainly due to the interaction with active hillslope processes, the wide range of sediment sizes, discharge variance in time, the alternating bed roughness and the presence of steps and pools.
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englisch
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