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Threshold analysis of particulate matter emissions from biological soil crusts and their proportion in total wind erosion
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  • Yusong Wang,
  • Dandan Wang,
  • Xinxiao Yu,
  • Guodong Jia,
  • Xiaomin Chang,
  • Lele Sun,
  • Pengfei Zheng,
  • Yunxiao Qiu
Yusong Wang
Beijing Forestry University

Corresponding Author:786501484@qq.com

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Dandan Wang
China Institute of Water Resources and Hydropower Research
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Xinxiao Yu
Beijing Forestry University
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Guodong Jia
Beijing Forestry University
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Xiaomin Chang
Beijing Forestry University
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Lele Sun
Yellow River Engineering Consulting Co Ltd
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Pengfei Zheng
Beijing Forestry University
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Yunxiao Qiu
Beijing Forestry University
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Abstract

The problem of farmland degradation and air pollution caused by wind erosion and particulate matter emissions is serious. Relying on biological soil crust coverage can effectively inhibit the production of wind erosion materials. However, recent studies have discussed the wind erosion and particulate matter emission processes separately and few studies analyzed both, clarifying the changes in the proportion of particulate matter emissions in the total wind erosion. Aiming at the typical farming-pastoral transition zone in the monsoon climate zone, this study used wind tunnels to analyze the wind erosion and particulate matter emissions of algae crusts and moss crusts for different wind speeds and coverage conditions. Results show that the effects of wind speed and coverage on the total wind erosion of biological soil crusts are similar. However, the emission of particulate matter is particularly sensitive to coverage of biological soil crusts. The proportion of particulate matter emissions in wind erosion decreases with increasing wind speed. According to the trend of the proportion with wind speed, the particle emission capacity of moss crust is directly proportional to the particle size and inversely proportional to the coverage. In contrast, the particle emission capacity of algae crust particles is proportional to the particle size, but the relationship with coverage is not regular. The results of this study can improve the knowledge of the relationship between wind erosion and particulate matter emissions and give relevant information for the management of wind erosion and particulate matter emissions.
07 Dec 2021Submitted to Land Degradation & Development
09 Dec 2021Submission Checks Completed
09 Dec 2021Assigned to Editor
10 Dec 2021Reviewer(s) Assigned
20 Jan 2022Review(s) Completed, Editorial Evaluation Pending
24 Jan 2022Editorial Decision: Revise Major
09 Mar 20221st Revision Received
11 Mar 2022Submission Checks Completed
11 Mar 2022Assigned to Editor
22 Mar 2022Review(s) Completed, Editorial Evaluation Pending
23 Mar 2022Editorial Decision: Revise Major
06 May 20222nd Revision Received
07 May 2022Submission Checks Completed
07 May 2022Assigned to Editor
21 May 2022Review(s) Completed, Editorial Evaluation Pending
22 May 2022Editorial Decision: Revise Minor
22 May 20223rd Revision Received
23 May 2022Submission Checks Completed
23 May 2022Assigned to Editor
24 May 2022Review(s) Completed, Editorial Evaluation Pending
30 May 2022Editorial Decision: Accept