Articles | Volume 25, issue 8
Hydrol. Earth Syst. Sci., 25, 4473–4494, 2021
Hydrol. Earth Syst. Sci., 25, 4473–4494, 2021

Research article 19 Aug 2021

Research article | 19 Aug 2021

Spatiotemporal changes in flow hydraulic characteristics and soil loss during gully headcut erosion under controlled conditions

Mingming Guo et al.

Related subject area

Subject: Hillslope hydrology | Techniques and Approaches: Modelling approaches
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Cited articles

Addisie, M. B., Ayele, G. K., Gessess, A. A., Tilahun, S. A., Zegeye, A. D., Moges, M. M., Schmitter, P., Langendoen, E. J., and Steenhuis, T. S.: Gully head retreat in the sub-humid Ethiopian Highlands: The Ene-Chilala catchment, Land Degrad. Dev., 28, 1579–1588,, 2017. 
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Alonso, C. V., Bennett, S. J., and Stein, O. R.: Predicting head cut erosion and migration in concentrated flows typical of upland areas, Water Resour. Res., 38, 39-1–39-15,, 2002. 
Amare, S., Keesstra, S., van der Ploeg, M., Langendoen, E., Steenhuis, T., and Tilahun, S.: Causes and controlling factors of Valley bottom Gullies, Land, 8, 141,, 2019. 
Amare, S., Langendoen, E., Keesstra, S., Ploeg, M. V. D., Gelagay, H., Lemma, H., and van der Zee, S. E.: Susceptibility to Gully Erosion: Applying Random Forest (RF) and Frequency Ratio (FR) Approaches to a Small Catchment in Ethiopia, Water, 13, 216,, 2021. 
Short summary
Gully headcut erosion is always a difficult issue in soil erosion, which hinders the revelation of gully erosion mechanisms and the establishment of a gully erosion model. This study clarified the spatiotemporal changes in flow properties, energy consumption, and soil loss, confirming that gully head consumed the most of flow energy (78 %) and can contribute 89 % of total soil loss. Critical energy consumption initiating soil erosion of the upstream area, gully head, and gully bed is confirmed.