干旱区生态环境知识资源中心(Arid): Biocementation Control of Sand against Wind Erosion

Arid

DOI	10.1061/(ASCE)GT.1943-5606.0002268
	Biocementation Control of Sand against Wind Erosion
	Fattahi, Seyed Mohammad 1; Soroush, Abbas 1; Huang, Ning 2
通讯作者	Soroush, Abbas
来源期刊	JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
ISSN	1090-0241
EISSN	1943-5606
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
推荐引用方式 GB/T 7714	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).