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: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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Cumulative views and downloads (calculated since 18 Jan 2016)

Month	HTML	PDF	XML	Total
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Feb 2016	28	14	3	45
Mar 2016	40	11	3	54
Apr 2016	14	3	0	17
May 2016	29	1	0	30
Jun 2016	26	4	0	30
Jul 2016	72	13	0	85
Aug 2016	119	19	1	139
Sep 2016	58	10	2	70
Oct 2016	16	3	7	26
Nov 2016	8	4	7	19
Dec 2016	8	4	0	12
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Feb 2017	14	4	0	18
Mar 2017	16	9	3	28
Apr 2017	28	10	2	40
May 2017	29	10	1	40
Jun 2017	25	10	1	36
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Jan 2025	26	9	4	39
Feb 2025	22	7	2	31
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Apr 2025	23	21	2	46
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Oct 2025	29	22	3	54
Nov 2025	17	19	3	39

Latest update: 30 Nov 2025

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.