干旱区生态环境知识资源中心(Arid): Hyperspectroscopic and microtopographic analyses of salt crust forms on arid, silty clay loam desert soils

Arid

DOI	10.4154/gc.2019.01
	Hyperspectroscopic and microtopographic analyses of salt crust forms on arid, silty clay loam desert soils
	Howari, Fares M.1; Al Aydaroos, Fatima 2; Nazzal, Yousef 1; Iqbal, Jibran 1; Orm, Nadine Bou 1
通讯作者	Howari, Fares M.
来源期刊	GEOLOGIA CROATICA
ISSN	1330-030X
EISSN	1333-4875
出版年	2019
卷号	72 期号:1 页码:43-49
英文摘要	This paper describes simultaneous uses of field sampling and hyperspectroscopic approaches to understand the distributions of salt crusts and factors affecting them under field conditions. Samples of salt affected soils and associated salt crusts that represented a range of soil salinities, slope, and moisture contents were gathered from the banks of the Rio Grande. The samples were studied for salt identification by optical microscopy and using a high-resolution spectroradiometer, GER 3700, and for salinity level, and moisture content by the wet chemistry method. The study identified two main groups of salt crusts, contaminated halite and gypsum crusts. Reflectivity was correlated negatively with moisture content and positively with slope value, electrical conductivity and salt quantity. Reflectivity of halite-dominated crusts was higher than those of gypsum. Halite occurred over a greater range and higher slope values of soils than gypsum; however, a positive correlation between the slope and mean reflectivity of both salt crusts was reported. Although reflectivity of salt crusts varied according to changes in moisture content, and the salinity of the soil, moisture content can drastically reduce the reflection more effectively? than the other factors. The data reported indicate the possibility of assessing the type of salt crust by estimation of the ratio of slope and reflectivity to the other variables.
英文关键词	Spectra halite gypsum Rio Grande soil GER 3700
类型	Article
语种	英语
国家	U Arab Emirates
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000465140000004
WOS关键词	REFLECTANCE SPECTRA ; PERFORMANCE ; PREDICTION ; WATER
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/2XILL650/215952
作者单位	1.Zayed Univ, Coll Nat & Hlth Sci, POB 144534, Abu Dhabi 144534, U Arab Emirates; 2.UAE Space Agcy, Abu Dhabi, U Arab Emirates
推荐引用方式 GB/T 7714	Howari, Fares M.,Al Aydaroos, Fatima,Nazzal, Yousef,et al. Hyperspectroscopic and microtopographic analyses of salt crust forms on arid, silty clay loam desert soils[J],2019,72(1):43-49.
APA	Howari, Fares M.,Al Aydaroos, Fatima,Nazzal, Yousef,Iqbal, Jibran,&Orm, Nadine Bou.(2019).Hyperspectroscopic and microtopographic analyses of salt crust forms on arid, silty clay loam desert soils.GEOLOGIA CROATICA,72(1),43-49.
MLA	Howari, Fares M.,et al."Hyperspectroscopic and microtopographic analyses of salt crust forms on arid, silty clay loam desert soils".GEOLOGIA CROATICA 72.1(2019):43-49.