A non-equilibrium sediment transport model for rill erosion Academic Article uri icon

abstract

  • Sediment transport in rill flows exhibits the characteristics of non-equilibrium transport, and the sediment transport rate of rill flow gradually recovers along the flow direction by erosion. By employing the concept of partial equilibrium sediment transport from open channel hydraulics, a dynamic model of rill erosion on hillslopes was developed. In the model, a parameter, called the restoration coefficient of sediment transport capacity, was used to express the recovery process of sediment transport rate, which was analysed by dimensional analysis and determined from laboratory experimental data. The values of soil loss simulated by the model were in agreement with observed values. The model results showed that the length and gradient of the hillslope and rainfall intensity had different influences on rill erosion. Copyright 2006 John Wiley & Sons, Ltd.

published proceedings

  • HYDROLOGICAL PROCESSES

author list (cited authors)

  • Liu, Q. Q., Chen, L., Li, J. C., & Singh, V. P.

citation count

  • 15

complete list of authors

  • Liu, QQ||Chen, L||Li, JC||Singh, VP

publication date

  • April 2007

publisher