干旱区生态环境知识资源中心(Arid): The wind erodibility in the newly emerged surfaces of Urmia Playa Lake and adjacent agricultural lands and its determining factors

Arid

DOI	10.1016/j.catena.2020.104675
	The wind erodibility in the newly emerged surfaces of Urmia Playa Lake and adjacent agricultural lands and its determining factors
	Motaghi, Fereshteh Alizadeh; Hamzehpour, Nikou; Abasiyan, Sara Mola Ali; Rahmati, Mehdi
通讯作者	Hamzehpour, N
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2020
卷号	194
英文摘要	Despite the great extent of Urmia Playa Lake (UPL), researchers have rarely ever studied the development of playa surfaces and their vulnerability to dust emission. Therefore, we aimed the current research to study the formation of UPL surfaces and how their physicochemical, mineralogical and geomorphological characteristics affect their susceptibility to wind erosion. An area of 41 km(2) was chosen including lands from UPL and adjacent Agricultural Lands (AL). Different playa surfaces were identified on different geomorphic surfaces and mapped using Landsat images. Later, 75 soil samples from depth of 0-5 cm of different map units were collected and subjected to physicochemical analysis. Soil Erodible Fraction (EF) was also measured as an index for the wind erodibility of the examined soil surfaces. X-Ray Diffraction (XRD) and X-Ray Fluorescence (XRF) analysis of soil samples from three playa surfaces with significantly different EF values were also conducted. Major reasons for the development of different playa surfaces were found to be basically related to geomorphic surfaces on which they have developed, size and mineralogical composition of the sediments as well as the landscape position and depth to the groundwater. Statistical analysis of EF of different playa surfaces and AL showed that Salt Crusts (SC) had the lowest mean EF value due to the formation of a thin layer of salt on its surface as it has developed on low stand geomorphic surface being fine-textured by nature and rich in Na, Mg and Cl ions. Abandoned Agricultural lands (AA) and AL had the highest mean EF values. High sand content of soils with anthropogenic origin along with conventional tillage practices resulting in soil organic matter loss and over grazing were the major reasons of their high EF. Therefore, these surfaces need to be monitored carefully and to be of high priority of conservation and dust control programs in the region.
英文关键词	Clay flat Erodible fraction Mineralogy Salt crust
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000566699000012
WOS关键词	OWENS DRY LAKE ; ERODIBLE FRACTION ; SOIL PROPERTIES ; FARS PROVINCE ; DUST ; WATER ; EROSION ; CLIMATE ; AEROSOLS ; DESERT
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326077
作者单位	[Motaghi, Fereshteh Alizadeh; Hamzehpour, Nikou; Abasiyan, Sara Mola Ali; Rahmati, Mehdi] Univ Maragheh, Dept Soil Sci & Engn, Fac Agr, Maragheh, Iran
推荐引用方式 GB/T 7714	Motaghi, Fereshteh Alizadeh,Hamzehpour, Nikou,Abasiyan, Sara Mola Ali,et al. The wind erodibility in the newly emerged surfaces of Urmia Playa Lake and adjacent agricultural lands and its determining factors[J],2020,194.
APA	Motaghi, Fereshteh Alizadeh,Hamzehpour, Nikou,Abasiyan, Sara Mola Ali,&Rahmati, Mehdi.(2020).The wind erodibility in the newly emerged surfaces of Urmia Playa Lake and adjacent agricultural lands and its determining factors.CATENA,194.
MLA	Motaghi, Fereshteh Alizadeh,et al."The wind erodibility in the newly emerged surfaces of Urmia Playa Lake and adjacent agricultural lands and its determining factors".CATENA 194(2020).