干旱区生态环境知识资源中心(Arid): Monitoring Sand Drift Potential and Sand Dune Mobility over the Last Three Decades (Khartouran Erg, Sabzevar, NE Iran)

Arid

DOI	10.3390/su13169050
	Monitoring Sand Drift Potential and Sand Dune Mobility over the Last Three Decades (Khartouran Erg, Sabzevar, NE Iran)
	Rahdari, Mohammad Reza; Rodriguez-Seijo, Andres
通讯作者	Rahdari, MR (corresponding author), Univ Torbat Heydarieh, Fac Agr, Torbat Heydarieh 9516168595, Iran.
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2021
卷号	13 期号:16
英文摘要	Aeolian sediments cover about 6% of the earth's surface, of which 97% occur in arid regions, and these sediments cover about 20% of the world's lands. Sand drifts can harm sensitive ecosystems; therefore, this research has aimed to study wind regimes and the monitoring of sand drift potential and dune mobility in the Khartouran Erg (NE Iran). The study investigated 30 years of wind speed and direction to better understand sand dune mobility processes using the Fryberger and Tsoar methods. The results of the wind regime study showed that the eastern (33.4%) and northeastern (14.3%) directions were more frequent, but the study of winds greater than the threshold (6 m/s) in winter, spring, and autumn indicated the dominance of eastern and northern wind directions. Findings of calm winds showed that winters (40.4%) had the highest frequency, and summers (15%) had the lowest frequency; the annual frequency was 30%. The average wind speed in summers was the highest (4.38 m/s), and, in the winters, it was the lowest (2.28 m/s); the annual average wind speed was 3.3 m/s. The annual drift potential (DP = 173 VU) showed that it was categorized as low class, and the winds carried sand to the southwest. The monitoring of drift potential showed that there was a sharp increase between 2003 and 2008, which could have been attributed to a change in wind speeds in the region. Unite directional index, the index of directional variability, has been alternating from 0.3 to 0.6 for 30 years. Furthermore, monitoring of sand mobility recorded a value from 0.1 to 0.4, and the lowest and highest values were registered from 0.08 to 0.9, with an average of 0.27. Finally, it can be concluded that sand dunes have been fixed for a long time, and the intensity of the mobility index is affected by climate changes.
英文关键词	aeolian arid environment Fryberger and Tsoar method land degradation soil erosion wind regime
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000690194300001
WOS关键词	WIND EROSION ; AEOLIAN SAND ; SATELLITE IMAGERY ; SEMIARID REGIONS ; DESERT ; DUST ; RAILWAY ; ENERGY ; RECLAMATION ; MIGRATION
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364749
作者单位	[Rahdari, Mohammad Reza] Univ Torbat Heydarieh, Fac Agr, Torbat Heydarieh 9516168595, Iran; [Rodriguez-Seijo, Andres] Univ Porto, Interdisciplinary Ctr Marine & Environm Res CIIMA, Ave Gen Norton de Matos S-N, P-4450208 Matosinhos, Portugal; [Rodriguez-Seijo, Andres] Univ Porto, Fac Sci, Dept Biol, Rua Campo Alegre, P-4169007 Porto, Portugal
推荐引用方式 GB/T 7714	Rahdari, Mohammad Reza,Rodriguez-Seijo, Andres. Monitoring Sand Drift Potential and Sand Dune Mobility over the Last Three Decades (Khartouran Erg, Sabzevar, NE Iran)[J],2021,13(16).
APA	Rahdari, Mohammad Reza,&Rodriguez-Seijo, Andres.(2021).Monitoring Sand Drift Potential and Sand Dune Mobility over the Last Three Decades (Khartouran Erg, Sabzevar, NE Iran).SUSTAINABILITY,13(16).
MLA	Rahdari, Mohammad Reza,et al."Monitoring Sand Drift Potential and Sand Dune Mobility over the Last Three Decades (Khartouran Erg, Sabzevar, NE Iran)".SUSTAINABILITY 13.16(2021).