干旱区生态环境知识资源中心(Arid): Effect of stones on the sand saltation threshold during natural sand and dust storms in a stony desert in Tsogt-Ovoo in the Gobi Desert, Mongolia

Arid

DOI	10.1007/s40333-021-0072-7
	Effect of stones on the sand saltation threshold during natural sand and dust storms in a stony desert in Tsogt-Ovoo in the Gobi Desert, Mongolia
	Buyantogtokh, Batjargal; Kurosaki, Yasunori; Tsunekawa, Atsushi; Tsubo, Mitsuru; Gantsetseg, Batdelger; Davaadorj, Amarsaikhan; Ishizuka, Masahide; Sekiyama, Tsuyoshi T.; Tanaka, Taichu Y.; Maki, Takashi
通讯作者	Buyantogtokh, B (corresponding author), Tottori Univ, Arid Land Res Ctr, Tottori 6800001, Japan. ; Buyantogtokh, B (corresponding author), Informat & Res Inst Meteorol Hydrol & Environm, Ulaanbaatar 15160, Mongolia.
来源期刊	JOURNAL OF ARID LAND
ISSN	1674-6767
EISSN	2194-7783
出版年	2021
卷号	13 期号:7 页码:653-673
英文摘要	Non-erodible elements such as stones and vegetation are key to controlling wind erosion and dust emission in drylands. Stony deserts are widely distributed in the Gobi Desert, but the effect of stones on wind erosion and dust emission have not been well studied, except under artificial conditions. In this study, we evaluated the effect of stones on wind erosion and dust emission by measuring the sand saltation threshold in a stony desert in Tsogt-Ovoo in the Gobi Desert, Mongolia, under natural surface conditions during sand and dust storms. We quantified the amount of stones by measuring the roughness density, and determined the threshold friction velocity for sand saltation by measuring wind speed and sand saltation count. Our results showed that the threshold friction velocity increased with the roughness density of stones. In the northern part of the study area, where neither a surface crust nor vegetation was observed, the roughness density of stones was 0.000 in a topographic depression (TD), 0.050 on a northern slope (N.SL), and 0.160 on the northern mountain (N.MT). The mean threshold friction velocity values were 0.23, 0.41, and 0.57 m/s at the TD, N.SL, and N.MT sites, respectively. In the southern part of the study area, the roughness density values of stones were 0.000 and 0.070-0.320 at the TD and southern slope sites, respectively, and the mean threshold friction velocities were 0.23 and 0.45-0.71 m/s, respectively. We further compared the observed threshold friction velocities with simulated threshold friction velocities using Raupach's theoretical roughness correction and the measured roughness density values, and found that Raupach's roughness correction worked very well in the simulation of threshold friction velocity in the stony desert. This means that the results of our stone measurement can be applied to a numerical dust model.
英文关键词	arid region threshold friction velocity roughness density shear stress sand saltation threshold roughness correction Gobi Desert
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000685300400001
WOS关键词	WIND EROSION ; FRICTION VELOCITIES ; SURFACE CONDITIONS ; SOIL PARTICLES ; ROUGHNESS ; FIELD ; TRANSPORT ; TUNNEL ; EMISSION ; DRAG
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363774
作者单位	[Buyantogtokh, Batjargal; Kurosaki, Yasunori; Tsunekawa, Atsushi; Tsubo, Mitsuru] Tottori Univ, Arid Land Res Ctr, Tottori 6800001, Japan; [Buyantogtokh, Batjargal; Gantsetseg, Batdelger; Davaadorj, Amarsaikhan] Informat & Res Inst Meteorol Hydrol & Environm, Ulaanbaatar 15160, Mongolia; [Ishizuka, Masahide] Kagawa Univ, Fac Engn & Design, Takamatsu, Kagawa 7610396, Japan; [Sekiyama, Tsuyoshi T.; Tanaka, Taichu Y.; Maki, Takashi] Japan Meteorol Agcy, Meteorol Res Inst, Tsukuba, Ibaraki 3050052, Japan
推荐引用方式 GB/T 7714	Buyantogtokh, Batjargal,Kurosaki, Yasunori,Tsunekawa, Atsushi,et al. Effect of stones on the sand saltation threshold during natural sand and dust storms in a stony desert in Tsogt-Ovoo in the Gobi Desert, Mongolia[J],2021,13(7):653-673.
APA	Buyantogtokh, Batjargal.,Kurosaki, Yasunori.,Tsunekawa, Atsushi.,Tsubo, Mitsuru.,Gantsetseg, Batdelger.,...&Maki, Takashi.(2021).Effect of stones on the sand saltation threshold during natural sand and dust storms in a stony desert in Tsogt-Ovoo in the Gobi Desert, Mongolia.JOURNAL OF ARID LAND,13(7),653-673.
MLA	Buyantogtokh, Batjargal,et al."Effect of stones on the sand saltation threshold during natural sand and dust storms in a stony desert in Tsogt-Ovoo in the Gobi Desert, Mongolia".JOURNAL OF ARID LAND 13.7(2021):653-673.