干旱区生态环境知识资源中心(Arid): Tracing gypsiferous White Sands aerosols in the shallow critical zone in the northern Sacramento Mountains, New Mexico using Sr/Ca and Sr-87/ Sr-86 ratios

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DOI	10.1016/j.geoderma.2020.114387
	Tracing gypsiferous White Sands aerosols in the shallow critical zone in the northern Sacramento Mountains, New Mexico using Sr/Ca and Sr-87/ Sr-86 ratios
	Rea, Patrick; Ma, Lin; Gill, Thomas E.; Gardea-Torresdey, Jorge; Tamez, Carlos; Jin, Lixin
通讯作者	Jin, LX
来源期刊	GEODERMA
ISSN	0016-7061
EISSN	1872-6259
出版年	2020
卷号	372
英文摘要	White Sands (New Mexico, USA) emits gypsum dust with a unique chemical and mineralogical signature, providing an opportunity to investigate its loading and regional movement. This study tracked White Sands dust input to montane soils downwind in the northern Sacramento Mountains, and provided better understanding of the effects of gypsum dust on sources of bioavailable plant nutrients in an active critical zone. Four soil profiles were collected over bedrocks of different weatherabilities, from the most reactive limestone, mixed limestone, diorite, to the least reactive sandstone, as well as different atmospheric end-members (rain, regional dust, and White Sands gypsum). Annual dry deposition rate observed at the Sacramento Mountains was approximately at 11 g m(-2) yr(-1), up to an order of magnitude lower than those at the Chihuahuan Desert basins upwind and closer to dust sources at lower elevations. Elemental chemistry, Ca/Sr and Sr-87/ Sr-86 of bulk soils were mostly controlled by those of bedrocks and modified by chemical weathering over carbonate substrates, whereas the atmospheric input was only detectable in shallow soils over the least reactive sandstone through addition profiles of Ca, Sr and Na. Although only making up a small portion of a bulk soil in mass, White Sands dust, along with wet deposition, dominantly controlled the Ca/Sr and Sr-87/ Sr-86 ratios of plants and the water leachable fraction of the soils. Particles from White Sands, predominantly gypsum, were very soluble, and dissolved quickly in soils of the Sacramento Mountains but re-precipitated at the impermeable bedrock-soil interface. Although absolute concentrations of Ca and Sr in plants differed widely among four sites and among different local plant types, Sr/ Ca ratios were largely controlled by plant type, and thus the rooting depth. This study highlighted the importance of regional dust and rainfall in loading nutrients even in a semi-humid environment.
英文关键词	Elemental cycles Dust Critical zone Gypsum Deposition Nutrient flux
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000535713600012
WOS关键词	TRANSATLANTIC DUST TRANSPORT ; SAHARAN DUST ; DUNE FIELD ; GEOCHEMICAL EVIDENCE ; STRONTIUM ISOTOPES ; ATMOSPHERIC DUST ; AEOLIAN DUST ; CALCIUM ; SOILS ; DEPOSITION
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324544
作者单位	[Rea, Patrick; Ma, Lin; Gill, Thomas E.; Jin, Lixin] Univ Texas El Paso, Dept Geol Sci, El Paso, TX 79968 USA; [Gardea-Torresdey, Jorge; Tamez, Carlos] Univ Texas El Paso, Dept Chem & Biochem, El Paso, TX 79968 USA
推荐引用方式 GB/T 7714	Rea, Patrick,Ma, Lin,Gill, Thomas E.,et al. Tracing gypsiferous White Sands aerosols in the shallow critical zone in the northern Sacramento Mountains, New Mexico using Sr/Ca and Sr-87/ Sr-86 ratios[J],2020,372.
APA	Rea, Patrick,Ma, Lin,Gill, Thomas E.,Gardea-Torresdey, Jorge,Tamez, Carlos,&Jin, Lixin.(2020).Tracing gypsiferous White Sands aerosols in the shallow critical zone in the northern Sacramento Mountains, New Mexico using Sr/Ca and Sr-87/ Sr-86 ratios.GEODERMA,372.
MLA	Rea, Patrick,et al."Tracing gypsiferous White Sands aerosols in the shallow critical zone in the northern Sacramento Mountains, New Mexico using Sr/Ca and Sr-87/ Sr-86 ratios".GEODERMA 372(2020).