Preprints
https://doi.org/10.5194/egusphere-2022-714
https://doi.org/10.5194/egusphere-2022-714
12 Sep 2022
 | 12 Sep 2022

Modeling the Inhibition Effect of Straw Checkerboard Barriers on Wind-blown Sand

Haojie Huang

Abstract. Straw checkerboard barriers (SCBs) are usually laid to prevent or delay the process of desertification caused by aeolian sand erosion in arid and semi-arid regions. Understanding the impact of SCBs and its laying length on aeolian sand erosion is of great significance to reduce the damage and the laying costs. In this study, a three-dimensional wind-blown sand model in presence of SCBs was established by introducing the splash process and equivalent sand barriers into a large-eddy simulation airflow. From this model, the inhibition effect of SCBs on wind-blown sand was studied qualitatively, and the sensitivity of aeolian sand erosion to the laying length was investigated. The results showed that the wind speed in the SCBs area decreases oscillatively along the flow direction. Moreover, the longer the laying lengths, the lower the wind speed in the stable stage behind SCBs, and the lower the sand transport rate. We further found that the concentration of sand particles near the side of SCBs is higher than that in its central region, which is qualitatively consistent with the previous research. Our results also indicated that whether the wind speed will decrease below the impact threshold or the fluid threshold is the key factor affecting whether sand particles can penetrate the SCBs and form stable wind-blown sand behind the SCBs under the same conditions. Our research can provide theoretical support for the minimum laying length of SCBs in anti-desertification projects.

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Journal article(s) based on this preprint

13 Mar 2023
Modeling the inhibition effect of straw checkerboard barriers on wind-blown sand
Haojie Huang
Earth Surf. Dynam., 11, 167–181, https://doi.org/10.5194/esurf-11-167-2023,https://doi.org/10.5194/esurf-11-167-2023, 2023
Short summary
Haojie Huang

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2022-714', Anonymous Referee #1, 11 Oct 2022
    • AC1: 'Reply on RC1', Haojie Huang, 09 Dec 2022
  • RC2: 'Comment on egusphere-2022-714', Anonymous Referee #2, 10 Nov 2022
    • AC2: 'Reply on RC2', Haojie Huang, 09 Dec 2022
  • EC1: 'Comment on egusphere-2022-714', Andreas Baas, 05 Dec 2022
    • AC3: 'Reply on EC1', Haojie Huang, 09 Dec 2022

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2022-714', Anonymous Referee #1, 11 Oct 2022
    • AC1: 'Reply on RC1', Haojie Huang, 09 Dec 2022
  • RC2: 'Comment on egusphere-2022-714', Anonymous Referee #2, 10 Nov 2022
    • AC2: 'Reply on RC2', Haojie Huang, 09 Dec 2022
  • EC1: 'Comment on egusphere-2022-714', Andreas Baas, 05 Dec 2022
    • AC3: 'Reply on EC1', Haojie Huang, 09 Dec 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Haojie Huang on behalf of the Authors (11 Dec 2022)  Author's response   Author's tracked changes   Manuscript 
ED: Referee Nomination & Report Request started (04 Jan 2023) by Andreas Baas
RR by Catherine Le Ribault (12 Jan 2023)
RR by Anonymous Referee #2 (25 Jan 2023)
ED: Publish subject to minor revisions (review by editor) (06 Feb 2023) by Andreas Baas
AR by Haojie Huang on behalf of the Authors (07 Feb 2023)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (22 Feb 2023) by Andreas Baas
ED: Publish as is (27 Feb 2023) by Heather Viles (Editor)
AR by Haojie Huang on behalf of the Authors (28 Feb 2023)

Journal article(s) based on this preprint

13 Mar 2023
Modeling the inhibition effect of straw checkerboard barriers on wind-blown sand
Haojie Huang
Earth Surf. Dynam., 11, 167–181, https://doi.org/10.5194/esurf-11-167-2023,https://doi.org/10.5194/esurf-11-167-2023, 2023
Short summary
Haojie Huang

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Short summary
Straw checkerboard barriers (SCBs) have been widely used in the anti-desertification projects. However, research on mechanism and its laying length are still lacking. The significance of our work is to analyze some results which seemingly simple but lack of theoretical basis from the perspective of turbulence through this model, which may provide the theoretical support for the minimum laying length of SCBs in anti-desertification projects.