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

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

doi:https://doi.org/10.5194/hess-20-3005-2016

Articles | Volume 20, issue 7

https://doi.org/10.5194/hess-20-3005-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Modeling hydrological processes and changes

https://doi.org/10.5194/hess-20-3005-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 20, issue 7

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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Final revised paper (published on 28 Jul 2016)
Preprint (discussion started on 18 Jan 2016)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Assessment of land use impact on hydraulic threshold conditions for gully head cut initiation', Anonymous Referee #1, 10 Mar 2016
- AC1: 'Reply to reviewer 1', Qiuwen Chen, 22 May 2016
- AC4: 'Revised manuscript', Qiuwen Chen, 22 May 2016
RC2: 'Interactive comment on “Assessment of land use impact on hydraulic threshold conditions for gully head cut initiation” by Aliakbar Nazari Samani et al.', Anonymous Referee #2, 16 May 2016
- AC2: 'Reply to reviewer 2', Qiuwen Chen, 22 May 2016
- AC3: 'Revised manuscript', Qiuwen Chen, 22 May 2016

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Publish as is (25 May 2016) by Yangbo Chen

AR by Qiuwen Chen on behalf of the Authors (31 May 2016)

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 τ_cr = 35 dyne cm⁻² and ω_u = 0.4 Cm S⁻¹ in physically based soil erosion models is susceptible to high uncertainty when assessing gully erosion.