干旱区生态环境知识资源中心(Arid): Seasonal variations in threshold wind speed for saltation depending on soil temperature and vegetation: A case study in the Gobi Desert

Arid

DOI	10.1016/j.aeolia.2021.100716
	Seasonal variations in threshold wind speed for saltation depending on soil temperature and vegetation: A case study in the Gobi Desert
	Kong, Kaman; Nandintsetseg, Banzragch; Shinoda, Masato; Ishizuka, Masahide; Kurosaki, Yasunori; Bat-Oyun, Tserenpurev; Gantsetseg, Batdelger
通讯作者	Kong, K (corresponding author), Kagawa Univ, Fac Engn & Design, 2217-20 Hayashi Cho, Takamatsu, Kagawa 7610396, Japan.
来源期刊	AEOLIAN RESEARCH
ISSN	1875-9637
EISSN	2212-1684
出版年	2021
卷号	52
英文摘要	The threshold wind speed for saltation (Ut), an index of soil susceptibility to wind erosion, is affected by dynamics of various land surface conditions. Little information is available on the primary factors that affect Ut in the Gobi Desert. This study explored seasonal variations of Ut and its relations with land surface conditions at Tsogt-Ovoo, which is a dust source hotspot in East Asian drylands, based on a 6-year (2012-2017) measurement. The land surface parameters (soil moisture and temperature, and vegetation components of live, standing dead, and litter) were simulated by an ecosystem model. Results show that saltation tended to occur during February-June under strong western winds (>10 m s-1), with the highest frequencies in 2012 and 2015. The saltation season was divided into two periods: spring (February-early May) with an increase in saltation (i.e., a decrease in Ut); and early summer (late May-July) with a decrease in saltation (i.e., an increase in Ut). For 2012 and 2015, multi-regression analysis reveals that Ut negatively correlated with soil temperature in spring (R2adjusted = 0.39) and positively with vegetation components of live and standing dead in early summer (R2adjusted = 0.70). We assume that wind erosion was possibly enhanced through soil freeze-thaw processes and then was suppressed through plant growth in addition to dead leaves that were residues from the preceding summer. We establish a statistical model of Ut for this hotspot to analyze the relative contributions of erosivity and erodibility to wind erosion during 2012-2017.
英文关键词	Drylands Cold desert Threshold wind speed for saltation DAYCENT ecosystem model Soil freeze-thaw processes Vegetation components
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000703163200001
WOS关键词	FREEZE-THAW CYCLES ; DUST EMISSION ; AGGREGATE STABILITY ; FRICTION VELOCITY ; MOISTURE ; EROSION ; MODEL ; GRASSLAND ; TRANSPORT ; OUTBREAKS
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362335
作者单位	[Kong, Kaman; Nandintsetseg, Banzragch; Shinoda, Masato] Nagoya Univ, Grad Sch Environm Studies, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648601, Japan; [Kong, Kaman; Ishizuka, Masahide] Kagawa Univ, Fac Engn & Design, 2217-20 Hayashi Cho, Takamatsu, Kagawa 7610396, Japan; [Nandintsetseg, Banzragch; Bat-Oyun, Tserenpurev; Gantsetseg, Batdelger] Informat & Res Inst Meteorol Hydrol & Environm, Ulaanbaatar 15160, Mongolia; [Nandintsetseg, Banzragch] Natl Univ Mongolia, Sch Arts & Sci, Ulaanbaatar 210646, Mongolia; [Kurosaki, Yasunori] Tottori Univ, Arid Land Res Ctr, 1390 Hamasaka, Tottori, Tottori 6800001, Japan
推荐引用方式 GB/T 7714	Kong, Kaman,Nandintsetseg, Banzragch,Shinoda, Masato,et al. Seasonal variations in threshold wind speed for saltation depending on soil temperature and vegetation: A case study in the Gobi Desert[J],2021,52.
APA	Kong, Kaman.,Nandintsetseg, Banzragch.,Shinoda, Masato.,Ishizuka, Masahide.,Kurosaki, Yasunori.,...&Gantsetseg, Batdelger.(2021).Seasonal variations in threshold wind speed for saltation depending on soil temperature and vegetation: A case study in the Gobi Desert.AEOLIAN RESEARCH,52.
MLA	Kong, Kaman,et al."Seasonal variations in threshold wind speed for saltation depending on soil temperature and vegetation: A case study in the Gobi Desert".AEOLIAN RESEARCH 52(2021).