A general sediment transport model for linear incisions

Resumen del trabajo presentado al IV International Symposium on Gully Erosion, celebrado en la Universidad Pública de Navarra del 17 al 19 de septiembre de 2007.Previous research has shown that the functional relationship between sediment transport and shear stress, discharge and slope is non-linear. The different datasets that support this hypothesis are however all derived from flume experiments or river channels. No calibration was done at the field scale. Recenltly, Istanbulluoghi et al. (2003) successfully calibrated the sediment transport function with field data from eroding gullies in the Idaho Batholith. However, the field data presented covered only a relatively limited range of condition. In this study, more field data is presented that supports the field-scale calibration over a wider array of shear stress conditions in the lower range.Part of the work reported in this paper was financially supported by the Spanish Ministry of Education and Research (MEC) Project AGL2006-10927-C03/AGR. T. Vanwalleghem was founded by the project CAO01-001-C4-1 and a Marie Curie Intra-European Fellowship. F.J. Jiménez-Hornero was founded by Consejería de Innovación, Ciencia y Empresa, Junta de Andalucía (Ayudas para Facilitar el Retorno de Investigadores a Centros de Investigación y Universidades de Andalucía)