干旱区生态环境知识资源中心(Arid): Threshold friction velocity influenced by soil particle size within the Columbia Plateau, northwestern United States

Arid

DOI	10.1007/s40333-024-0081-4
	Threshold friction velocity influenced by soil particle size within the Columbia Plateau, northwestern United States
	Meng, Ruibing; Meng, Zhongju; Sharratt, Brenton; Zhang, Jianguo; Cai, Jiale; Chen, Xiaoyan
通讯作者	Meng, ZJ
来源期刊	JOURNAL OF ARID LAND
ISSN	1674-6767
EISSN	2194-7783
出版年	2024
卷号	16 期号:8 页码:1147-1162
英文摘要	Wind erosion is a geomorphic process in arid and semi-arid areas and has substantial implications for regional climate and desertification. In the Columbia Plateau of northwestern United States, the emissions from fine particles of loessial soils often contribute to the exceedance of inhalable particulate matter (PM) with an aerodynamic diameter of 10 mu m or less (PM10) according to the air quality standards. However, little is known about the threshold friction velocity (TFV) for particles of different sizes that comprise these soils. In this study, soil samples of two representative soil types (Warden sandy loam and Ritzville silt loam) collected from the Columbia Plateau were sieved to seven particle size fractions, and an experiment was then conducted to determine the relationship between TFV and particle size fraction. The results revealed that soil particle size significantly affected the initiation of soil movement and TFV; TFV ranged 0.304-0.844 and 0.249-0.739 m/s for different particle size fractions of Ritzville silt loam and Warden sandy loam, respectively. PM10 and total suspended particulates (TSP) emissions from a bed of 63-90 mu m soil particles were markedly higher for Warden sandy loam than for Ritzville silt loam. Together with the lower TFV of Warden sandy loam, dust emissions from fine particles (<100 m in diameter) of Warden sandy loam thus may be a main contributor to dust in the region's atmosphere, since the PM10 emissions from the soil erosion surfaces and its ensuing suspension within the atmosphere constitute an essential process of soil erosion in the Columbia Plateau. Developing and implementing strategic land management practices on sandy loam soils is therefore necessary to control dust emissions in the Columbia Plateau.
英文关键词	particle size threshold friction velocity inhalable particulate matter total suspended particles Warden sandy loam Ritzville silt loam Columbia Plateau
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001299985300008
WOS关键词	WIND EROSION ; DUST EMISSION ; AGRICULTURAL FIELDS ; PM10 EMISSION ; TILLAGE ; TUNNEL ; MODEL ; FLUX
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/2XILL650/404386
推荐引用方式 GB/T 7714	Meng, Ruibing,Meng, Zhongju,Sharratt, Brenton,et al. Threshold friction velocity influenced by soil particle size within the Columbia Plateau, northwestern United States[J],2024,16(8):1147-1162.
APA	Meng, Ruibing,Meng, Zhongju,Sharratt, Brenton,Zhang, Jianguo,Cai, Jiale,&Chen, Xiaoyan.(2024).Threshold friction velocity influenced by soil particle size within the Columbia Plateau, northwestern United States.JOURNAL OF ARID LAND,16(8),1147-1162.
MLA	Meng, Ruibing,et al."Threshold friction velocity influenced by soil particle size within the Columbia Plateau, northwestern United States".JOURNAL OF ARID LAND 16.8(2024):1147-1162.