干旱区生态环境知识资源中心(Arid): Effects of plants with different shapes and coverage on the blown-sand flux and roughness length examined by wind tunnel experiments

Arid

DOI	10.1016/j.catena.2020.104976
	Effects of plants with different shapes and coverage on the blown-sand flux and roughness length examined by wind tunnel experiments
	Liu, Jiaqi; Kimura, Reiji; Miyawaki, Mami; Kinugasa, Toshihiko
通讯作者	Liu, JQ (corresponding author), Tottori Univ, Arid Land Res Ctr, Hamasaka 1390, Tottori 6800001, Japan.
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2021
卷号	197
英文摘要	Plants can reduce the effects of wind erosion on erodible surfaces by absorbing momentum near sandy surfaces. We used models having the same cross-sectional shape as three common plants in the arid regions of Mongolia and carried out tests in a wind tunnel equipped with a turbulence generator and a piezoelectric blown-sand meter. We studied the effects of plant shape and coverage on the sand accumulation amount, roughness length, and blown-sand flux. With a cone array or an inverted truncated cone array, roughness length increased as the modeled plant coverage increased up to 21.1%, similar to the accumulation amount trend. With a cylinder array, however, roughness length reached a maximum at 6.6% coverage and then gradually decreased. The accumulation amount also trended downward at coverages greater than 15.4%, a change we attributed to changes in the wake distribution. In addition, the wind-blown-sand flux results showed that a cylinder array had a strong inhibitory effect on the blown-sand flux at heights above 10 cm, whereas the inhibitory effect of a cone array was small. Moreover, with an inverted truncated cone array, the suppression effect on the flux below 10 cm was similar to that with the cone array, and the suppression effect on the flux above 10 cm was more pronounced than that with a cylinder array. Our results can be applied to evaluate how shape affects the suitability of a plant for reducing wind erosion in southern Mongolia and potentially in other arid and semi-arid regions.
英文关键词	Arid regions Boundary layer Blown-sand flux Piezoelectric blown-sand meter Roughness length
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000597208600022
WOS关键词	AERODYNAMIC ROUGHNESS ; MASS FLUX ; BOUNDARY-LAYER ; VEGETATION ; TRANSPORT ; FIELD ; FLOW ; PROFILES ; DESIGN ; SURFACE
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347787
作者单位	[Liu, Jiaqi; Kimura, Reiji] Tottori Univ, Arid Land Res Ctr, Hamasaka 1390, Tottori 6800001, Japan; [Miyawaki, Mami; Kinugasa, Toshihiko] Tottori Univ, Fac Agr, Minami 4 Chome 101,Koyamacho, Tottori 6808550, Japan
推荐引用方式 GB/T 7714	Liu, Jiaqi,Kimura, Reiji,Miyawaki, Mami,et al. Effects of plants with different shapes and coverage on the blown-sand flux and roughness length examined by wind tunnel experiments[J],2021,197.
APA	Liu, Jiaqi,Kimura, Reiji,Miyawaki, Mami,&Kinugasa, Toshihiko.(2021).Effects of plants with different shapes and coverage on the blown-sand flux and roughness length examined by wind tunnel experiments.CATENA,197.
MLA	Liu, Jiaqi,et al."Effects of plants with different shapes and coverage on the blown-sand flux and roughness length examined by wind tunnel experiments".CATENA 197(2021).