干旱区生态环境知识资源中心(Arid): Dynamic characteristics of wind and PM10 over desert-oasis transition zone during dust events

Arid

DOI	10.1016/j.apr.2024.102050
	Dynamic characteristics of wind and PM10 over desert-oasis transition zone during dust events
	Zhan, Kejie; Zhou, Lanping
通讯作者	Zhan, KJ
来源期刊	ATMOSPHERIC POLLUTION RESEARCH
ISSN	1309-1042
出版年	2024
卷号	15 期号:4
英文摘要	Dust storm events generate aeolian dust as one of the main aerosols in the atmosphere, with significant impacts on air quality and human health. Further study is needed on the dust emission processes in source regions and the impacts of underlying surfaces with forested windbreaks on the transport of wind flow and PM10 to develop more accurate dust concentration forecasts. Synchronized monitoring of wind velocity and the PM10 concentration was performed along the dust transport pathway crossing the desert and oasis in Minqin County, Gansu Province, China. Results indicated that the PM10 concentration and flux responded quickly to wind velocity in the desert with both having obvious power function relationships. The addition of supra-regional transport of PM10 particles led to an abnormal increase in PM10 concentration and flux. Between desert and oasis, a positive linear function relationship of PM10 concentrations and quadratic function relationship of PM10 flux exist. The dynamic transfer process of PM10 in the oasis roughly depends on the condition of PM10 in the desert area. Forested windbreaks significantly reduced the mean wind velocity and PM10 flux by 65.02% and 67.63%, respectively. However, forests had a weak influence on the mean PM10 concentration. The effects of forested windbreaks on the PM10 concentration are related to the windward wind velocity. With increasing velocity, difference of PM10 concentration from desert to oasis turned from negative to positive, while the positive effects of the forested windbreak system can be enhanced by an increase in the windward wind velocity.
英文关键词	Minqin county Aeolian dust events PM10 concentration PM10 flux Shelterbelt
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001167642600001
WOS关键词	URBAN STREET CANYON ; SIZE-DISTRIBUTION ; TEMPORAL VARIATIONS ; MINERAL AEROSOL ; SOURCE REGION ; AIR-QUALITY ; DISPERSION ; EMISSION ; DEPOSITION ; SURFACE
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/2XILL650/402987
推荐引用方式 GB/T 7714	Zhan, Kejie,Zhou, Lanping. Dynamic characteristics of wind and PM10 over desert-oasis transition zone during dust events[J],2024,15(4).
APA	Zhan, Kejie,&Zhou, Lanping.(2024).Dynamic characteristics of wind and PM10 over desert-oasis transition zone during dust events.ATMOSPHERIC POLLUTION RESEARCH,15(4).
MLA	Zhan, Kejie,et al."Dynamic characteristics of wind and PM10 over desert-oasis transition zone during dust events".ATMOSPHERIC POLLUTION RESEARCH 15.4(2024).