Arid
DOI10.1061/(ASCE)GT.1943-5606.0002268
Biocementation Control of Sand against Wind Erosion
Fattahi, Seyed Mohammad1; Soroush, Abbas1; Huang, Ning2
通讯作者Soroush, Abbas
来源期刊JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
ISSN1090-0241
EISSN1943-5606
出版年2020
卷号146期号:6
英文摘要One-third of the global land area suffers from wind erosion, and its prevention is a critical issue in arid regions of the world. During a wind erosion event, the impacts of saltating grains on the surface cause abrasion of crusted soil surfaces. The topic of this study is to examine the efficiency of sand biocementation to diminish the wind erodibility of an aeolian sand. The erosion rate, number of emitted particles, and flux of the eroded mass from surface (as erodibility indicators) of the biocemented crust, formed by Bacillus megaterium, were measured in a wind tunnel at three different wind velocities; moreover, one extra condition with the presence of impacting particles at the lowest wind velocity was tested. According to the results of the tests, the biocemented crust could provide considerable protection for erodible aeolian sand against wind erosion (without impacting particles), diminishing the sand erodibility indicators by two to four orders of magnitude. However, with the impact of saltating particles, the formed crust could reduce erodibility indicators only by one order of magnitude.
英文关键词Wind erosion control Biocementation Wind tunnel Sand saltation Soil crust abrasion
类型Article
语种英语
国家Iran ; Peoples R China
收录类别SCI-E
WOS记录号WOS:000528679300009
WOS关键词CARBONATES ; BACTERIA ; IMPROVE
WOS类目Engineering, Geological ; Geosciences, Multidisciplinary
WOS研究方向Engineering ; Geology
来源机构兰州大学
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/319233
作者单位1.Amirkabir Univ Technol, Dept Civil & Environm Engn, 424 Hafez Ave, Tehran 1591634311, Iran;
2.Lanzhou Univ, Dept Civil Engn & Mech, 222 South Tianshui Rd, Lanzhou 730000, Peoples R China
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Fattahi, Seyed Mohammad,Soroush, Abbas,Huang, Ning. Biocementation Control of Sand against Wind Erosion[J]. 兰州大学,2020,146(6).
APA Fattahi, Seyed Mohammad,Soroush, Abbas,&Huang, Ning.(2020).Biocementation Control of Sand against Wind Erosion.JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING,146(6).
MLA Fattahi, Seyed Mohammad,et al."Biocementation Control of Sand against Wind Erosion".JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING 146.6(2020).
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