干旱区生态环境知识资源中心(Arid): PM2.5 and PM10 emissions by abrasion of agricultural soils

Arid

DOI	10.1016/j.still.2020.104601
	PM2.5 and PM10 emissions by abrasion of agricultural soils
	Tatarko, John 1; Kucharski, Matthew 2; Li, Hongli 3,4; Li, Huiru 5
通讯作者	Tatarko, John
来源期刊	SOIL & TILLAGE RESEARCH
ISSN	0167-1987
EISSN	1879-3444
出版年	2020
卷号	200
英文摘要	Abrasion of soil clods by wind erosion is one process contributing to fine particulate emissions, which degrades air quality. Little is known about the abrasion process that generates and emits particulate matter with aerodynamic diameter of less than 2.5 mu m (PM2.5) or those less than 10 mu m (PM10). Both PM2.5 and PM10 are regulated by the US-Environmental Protection Agency as health hazards. We used a laboratory wind tunnel to study the abrasion induced emissions of 15 aggregated soils from across the U.S. We subjected aggregated soils in trays as well as sets of aggregates placed on the wind tunnel floor to abrader sand (0.29 to 0.42 mm diameter) blown at 13 m s(-1). PM2.5 and PM10 emissions were found to vary by soil type. Sandy soils had the poorest aggregation as well as lowest primary fine particulate contents and were found to have the greatest abrasion coefficients (AC) and highest emission of PM2.5 and PM10 under abrasion. By contrast, soils higher in clay had lower AC and emissions under abrasion. In addition, five of the soils tested had long-term histories of both conventional tillage (CT) and no-till (NT) management for paired comparisons of emission based on CT and NT managements. CT management tended to show higher AC values and greater abrasion emissions compared to NT management for the same soil, although only three of five management pairs were significant. Dry aggregate stability parameters were found to have an exponential relationship to AC with break force being a better AC predictor (R-2 = 0.936) than dry stability (R-2 = 0.894). We also developed equations that predict PM2.5 emissions as a fraction of PM10 emissions for aggregated soils (R-2 = 0.932) and individual aggregates alone (R-2 = 0.854). This research contributes to the understanding and prediction of PM2.5 and PM10 emission through the abrasion process.
英文关键词	Dust emission PM2.5/PM10 ratio Wind tunnel Conventional tillage No-till
类型	Article
语种	英语
国家	USA ; Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000528029900022
WOS关键词	WIND EROSION ; REDUCED TILLAGE ; UNITED-STATES ; DESERT DUST ; NO-TILLAGE ; AGGREGATE ; PREDICTION ; SUSPENSION ; TRANSPORT ; TEXTURE
WOS类目	Soil Science
WOS研究方向	Agriculture
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/318762
作者单位	1.USDA ARS, Rangeland Resources & Syst Res Unit, 2150 Ctr Ave,Bldg D,Suite 200, Ft Collins, CO 80522 USA; 2.USDA ARS, Agr Syst Res Unit, Manhattan, KS USA; 3.Shandong Agr Univ, Forestry Coll, Tai An, Shandong, Peoples R China; 4.Mt Tai Forest Ecosyst Res Stn State Forestry & Gr, Tai An, Shandong, Peoples R China; 5.Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China
推荐引用方式 GB/T 7714	Tatarko, John,Kucharski, Matthew,Li, Hongli,et al. PM2.5 and PM10 emissions by abrasion of agricultural soils[J]. 北京师范大学,2020,200.
APA	Tatarko, John,Kucharski, Matthew,Li, Hongli,&Li, Huiru.(2020).PM2.5 and PM10 emissions by abrasion of agricultural soils.SOIL & TILLAGE RESEARCH,200.
MLA	Tatarko, John,et al."PM2.5 and PM10 emissions by abrasion of agricultural soils".SOIL & TILLAGE RESEARCH 200(2020).