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Journal Articles Earth Surface Processes and Landforms Year : 2008

Distribution of erosion across bedrock channels

J. Turowski
  • Function : Author
Niels Hovius
  • Function : Author
Hsieh Meng-Long
  • Function : Author
Dimitri Lague
Chen Men-Chiang
  • Function : Author

Abstract

Lateral erosion in bedrock rivers is an important control on the shape of channel crosssections, and the coupling of channels and hillslopes. Recent observations link lateral erosionto the variability of flow. We propose two mechanisms to explain this. One is based on changing shear stress distributions within the channel with varying flood level, the other on the competition between cover and tool effects in fluvial bedrock erosion. We assess these processes for the Liwu River, Taiwan, and conclude that cover and tool effects dominate the partitioning of lateral and vertical erosion in this case.

Domains

Geomorphology

Dates and versions

insu-00377279 , version 1 (21-04-2009)

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J. Turowski, Niels Hovius, Hsieh Meng-Long, Dimitri Lague, Chen Men-Chiang. Distribution of erosion across bedrock channels. Earth Surface Processes and Landforms, 2008, 33 (3), pp.353-363. ⟨10.1002/esp.1559⟩. ⟨insu-00377279⟩
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