干旱区生态环境知识资源中心(Arid): Characterization and mapping spatial variability of Entisols derived from shale in Dakhla Oasis, Egypt

Arid

DOI	10.1007/s12517-020-05540-2
	Characterization and mapping spatial variability of Entisols derived from shale in Dakhla Oasis, Egypt
	Selmy, Salman; Abd El-Aziz, Salah; Gameh, Mohsen; Abdelsalam, Al-Saadawi
通讯作者	Selmy, S
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2020
卷号	13 期号:14
英文摘要	There is a considerable lack of essential information about Entisols derived from shale in the arid desert environment. This study was thus carried out to characterize and map the spatial variability of primary properties of Entisols in Dakhla Oasis, Western Desert, Egypt. Soil properties of twenty-seven profiles represented by Entisols were carefully examined. Geostatistical analysis was performed to map soil variability based on the ordinary kriging interpolation method. Results show that most of the studied soils (92.1%) were fine and medium in texture. The values of electrical conductivity of soil paste extract (ECe) ranged between 0.45 and 36.40 dS m(-1)(mean = 10.35 dS m(-1)). Most of the studied soil samples (82.9%) were extremely low in organic matter (OM) (<= 3.4 g kg(-1)). The cation exchange capacity (CEC) ranged between 9.37 and 50.84 cmol(+) kg(-1)with an average of 29.09 cmol(+) kg(-1). The coefficient of variation was high to very high for sand, ECe, and OM; moderate for silt, clay, saturation percentage, and CEC; and low for the soil pH. Significantly positive and negative correlations were observed among the Entisol properties (atP< 0.01 and/orP< 0.05), and most of these relationships are likely associated with the parent material. Precise maps created efficiently with geostatistics were crucial for a proper understanding of the current spatial variability in the study area. This study provides valuable information and new knowledge about the properties and the spatial variability of this type of Entisols.
英文关键词	Arid environment Dakhla Oasis Entisols Geostatistical analysis Ordinary kriging Soil properties
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000551933000001
WOS类目	Geosciences, Multidisciplinary
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/2XILL650/325177
作者单位	[Selmy, Salman; Abd El-Aziz, Salah; Gameh, Mohsen; Abdelsalam, Al-Saadawi] Assiut Univ, Fac Agr, Dept Soils & Water, Assiut 71526, Egypt; [Abdelsalam, Al-Saadawi] Sirte Univ, Fac Agr, Dept Soils & Water, Sirte, Libya
推荐引用方式 GB/T 7714	Selmy, Salman,Abd El-Aziz, Salah,Gameh, Mohsen,et al. Characterization and mapping spatial variability of Entisols derived from shale in Dakhla Oasis, Egypt[J],2020,13(14).
APA	Selmy, Salman,Abd El-Aziz, Salah,Gameh, Mohsen,&Abdelsalam, Al-Saadawi.(2020).Characterization and mapping spatial variability of Entisols derived from shale in Dakhla Oasis, Egypt.ARABIAN JOURNAL OF GEOSCIENCES,13(14).
MLA	Selmy, Salman,et al."Characterization and mapping spatial variability of Entisols derived from shale in Dakhla Oasis, Egypt".ARABIAN JOURNAL OF GEOSCIENCES 13.14(2020).