干旱区生态环境知识资源中心(Arid): Contemporary and future dust sources and emission fluxes from gypsum- and quartz-dominated eolian systems, New Mexico and Texas, USA

Arid

DOI	10.1130/G49488.1
	Contemporary and future dust sources and emission fluxes from gypsum- and quartz-dominated eolian systems, New Mexico and Texas, USA
	Sweeney, Mark R.; Forman, Steven L.; McDonald, Eric, V
通讯作者	Sweeney, MR (corresponding author)，Univ South Dakota, Dept Sustainabil & Environm, 414 E Clark St, Vermillion, SD 57069 USA.
来源期刊	GEOLOGY
ISSN	0091-7613
EISSN	1943-2682
出版年	2021-12
英文摘要	Recent research on dust emissions from eolian dunes seeks to improve regional and global emissions estimates and knowledge of dust sources, particularly with a changing climate. Dust emissions from dune fields can be more accurately estimated when considering the whole eolian system composed of active to stabilized dunes, interdunes, sand sheets, and playas. Each landform can emit different concentrations of dust depending on the supply of silt and clay, soil surface characteristics, and the degree to which the landforms are dy-namic and interact. We used the Portable In Situ Wind Erosion Laboratory (PI-SWERL) to measure PM10 (particulate matter <10 mu m) dust emission potential from landforms in two end-member eolian systems: the White Sands dune field in New Mexico (USA), composed of gypsum, and the Monahans dune field in west Texas, composed of quartz. White Sands is a hotspot of dust emissions where dunes and the adjacent playa yield high dust fluxes up to 8.3 mg/m(2)/s. In contrast, the active Monahans dunes contain 100% sand and produce low dust fluxes up to 0.5 mg/m(2)/s, whereas adjacent stabilized sand sheets and dunes that contain silt and clay could produce up to 17.7 mg/m(2)/s if reactivated by climate change or anthropogenic disturbance. These findings have implications for present and future dust emission potential of eolian systems from the Great Plains to the southwestern United States, with unrealized emissions of >300 t/km(2)/yr.
类型	Article ; Early Access
语种	英语
开放获取类型	Green Submitted, Bronze
收录类别	SCI-E
WOS记录号	WOS:000750867700001
WOS关键词	SANDS ; ABRASION ; DESERT
WOS类目	Geology
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377055
作者单位	[Sweeney, Mark R.] Univ South Dakota, Dept Sustainabil & Environm, 414 E Clark St, Vermillion, SD 57069 USA; [Forman, Steven L.] Baylor Univ, Dept Geosci, One Bear Pl 97354, Waco, TX 76798 USA; [McDonald, Eric, V] Desert Res Inst, Div Earth & Ecosyst Sci, 2215 Raggio Pkwy, Reno, NV 89512 USA
推荐引用方式 GB/T 7714	Sweeney, Mark R.,Forman, Steven L.,McDonald, Eric, V. Contemporary and future dust sources and emission fluxes from gypsum- and quartz-dominated eolian systems, New Mexico and Texas, USA[J],2021.
APA	Sweeney, Mark R.,Forman, Steven L.,&McDonald, Eric, V.(2021).Contemporary and future dust sources and emission fluxes from gypsum- and quartz-dominated eolian systems, New Mexico and Texas, USA.GEOLOGY.
MLA	Sweeney, Mark R.,et al."Contemporary and future dust sources and emission fluxes from gypsum- and quartz-dominated eolian systems, New Mexico and Texas, USA".GEOLOGY (2021).