Articles | Volume 20, issue 7
https://doi.org/10.5194/hess-20-3005-2016
https://doi.org/10.5194/hess-20-3005-2016
Research article
 | 
28 Jul 2016
Research article |  | 28 Jul 2016

Assessment of land use impact on hydraulic threshold conditions for gully head cut initiation

Aliakbar Nazari Samani, Qiuwen Chen, Shahram Khalighi, Robert James Wasson, and Mohammad Reza Rahdari

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Short summary
We hypothesized that land use had important effects on hydraulic threshold conditions for gully head cut initiation. We investigated the effects using an experimental plot. The results indicated that the use of a threshold value of τcr = 35  dyne cm−2 and ωu = 0.4 Cm S−1 in physically based soil erosion models is susceptible to high uncertainty when assessing gully erosion.