干旱区生态环境知识资源中心(Arid): Changes in physicochemical properties of old stabilized sand dunes due to atmospheric sediments and diversity of clay minerals in a dry area

Arid

DOI	10.1016/j.aeolia.2021.100674
	Changes in physicochemical properties of old stabilized sand dunes due to atmospheric sediments and diversity of clay minerals in a dry area
	Hassanizade, Somaye; Jafari, Siroos
通讯作者	Jafari, S (corresponding author), Univ Khuzestan, Soil Sci Dept, Agr Sci & Nat Resources, Ahwaz, Iran.
来源期刊	AEOLIAN RESEARCH
ISSN	1875-9637
EISSN	2212-1684
出版年	2021
卷号	50
英文摘要	Sand dune hills were stabilized by petroleum mulch and biological methods in southwest Iran. The present study aims to identify the effects of these landscapes on airborne dust entrapment in five regions, including uphill (UH), downhill (DH), and canopy tree positions after 54 years. These locations were at different distances from dust sources and prevailing winds. The results revealed that salinity in the study areas showed the following trend: canopy > UH > DH. Silt particles were entrapped in the corner 4 times greater than the inner areas. Moreover, silt deposition flux ranged from 54 gm(-2) yr(-1) (the minimum) in the inner site (Al-Baji) to 207.4 g m(-2) yr(-1) (the maximum) in the corner site (SG). Unlike silt, clay flux was maximal in both inner (124.4) and corner (123.4) locations due to the movement of fine materials in high elevations. The total deposition of materials (silt + clay) was maximal (330.8) and minimal (155.6 gm(-2) yr(-1)) in the corner and inner sites, respectively. The clay mineralogy indicated that these hills had two groups of minerals. Primary minerals, i.e. carbonates and silicates, were inherited from parent materials. Secondary minerals were identified in surface soil, and peaks in the subsurface were very weak. Wind sediments added these clays to the surfaces. The abundance of these clays showed the following trend: palygorskite > smectite > vermiculite. It was found that these areas do not disturb the atmosphere by dust and play an important role in air purification because the surface roughness of these hills was promoted by artificially planted trees.
英文关键词	Arid Airborne dust Clay Entrapment Sand dunes Stabilization
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000647795500002
WOS关键词	DUST DEPOSITION ; ATACAMA DESERT ; SOUTHWEST ; KHUZESTAN ; STORMS ; CHINA ; FLUX
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349297
作者单位	[Hassanizade, Somaye] Univ Khuzestan, Agr Sci & Nat Resources, Ahwaz, Iran; [Jafari, Siroos] Univ Khuzestan, Soil Sci Dept, Agr Sci & Nat Resources, Ahwaz, Iran
推荐引用方式 GB/T 7714	Hassanizade, Somaye,Jafari, Siroos. Changes in physicochemical properties of old stabilized sand dunes due to atmospheric sediments and diversity of clay minerals in a dry area[J],2021,50.
APA	Hassanizade, Somaye,&Jafari, Siroos.(2021).Changes in physicochemical properties of old stabilized sand dunes due to atmospheric sediments and diversity of clay minerals in a dry area.AEOLIAN RESEARCH,50.
MLA	Hassanizade, Somaye,et al."Changes in physicochemical properties of old stabilized sand dunes due to atmospheric sediments and diversity of clay minerals in a dry area".AEOLIAN RESEARCH 50(2021).