干旱区生态环境知识资源中心(Arid): Remote sensing of desertification and study of temporal variability of aeolian deposits in parts of the Arabian Desert for sustainable development in an arid environment

Arid

DOI	10.1016/j.envres.2023.116279
	Remote sensing of desertification and study of temporal variability of aeolian deposits in parts of the Arabian Desert for sustainable development in an arid environment
	Rajendran, Sankaran; Al Kuwari, Hamad Al Saad; Sadooni, Fadhil N.; Nasir, Sobhi; Govil, Himanshu; Ghrefat, Habes
通讯作者	Rajendran, S
来源期刊	ENVIRONMENTAL RESEARCH
ISSN	0013-9351
EISSN	1096-0953
出版年	2023
卷号	232
英文摘要	Aeolian deposit in part of the Arabian Desert is mapped using ASTER data to understand desertification, land encroachment, and degradation, and to assess agricultural development in arid regions. In this study, the interpretation of emissive spectra of sand deposits showed the presence of triplet absorptions in emissivity be-tween 8 and 9.50 & mu;m and studied with ASTER spectral bands to map the deposits. The ASTER quartz index (QI) images used to study the Abu Samra region, Qatar from 2000 to 2021 showed significant changes in desertifi-cation and land degradation. Analysis of temporal variability of deposits between 2000 and 2021 using ASTER band 12 by Parallelepiped image classification showed a decreasing trend from 9.70% to 2.94% in their dis-tributions due to erosion and transportation. The changes are studied using FCC images (R:1; G:2; B:3) and hill-shaded images of 2000 and 2021. The results are confirmed from FCC (R:14; G:12; B:11) and Google Earth satellite images which showed the occurrence of sabkhas in 1985 and their disappearance from 2015, and the presence of agriculture in 2000 and their absence from 2005. The changes in desertification, land degradation, and agricultural development are verified in the field and evidenced. The grain size analysis of samples by ASTM method showed aeolian deposits have very fine to very coarse (63-2000 & mu;m) sand types with silts of <3%. The samples analyzed by XRD and SEM-EDX methods showed the occurrence of dolomite, calcite, quartz, feldspar, and gypsum minerals with high sphericity and sub-angular to well-rounded characters and suggested trans-portations of grains from long distances. The geochemical elements analyses of samples reflected the chemistry of carbonates, aluminosilicates, and evaporites minerals which could have been derived from the carbonate, shale and sandstone formations, and sabkhas that occurred in Qatar and the Arabian Peninsula.
英文关键词	Aeolian deposits Desertification Temporal variability ASTER Quartz index Arabian Desert
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001023341200001
WOS关键词	SPACEBORNE THERMAL EMISSION ; REFLECTION RADIOMETER ASTER ; SPECTRAL INDEXES ; SAND ; QATAR ; ROCKS ; PENINSULA ; MINERALS ; DYNAMICS ; PATTERNS
WOS类目	Environmental Sciences ; Public, Environmental & Occupational Health
WOS研究方向	Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396212
推荐引用方式 GB/T 7714	Rajendran, Sankaran,Al Kuwari, Hamad Al Saad,Sadooni, Fadhil N.,et al. Remote sensing of desertification and study of temporal variability of aeolian deposits in parts of the Arabian Desert for sustainable development in an arid environment[J],2023,232.
APA	Rajendran, Sankaran,Al Kuwari, Hamad Al Saad,Sadooni, Fadhil N.,Nasir, Sobhi,Govil, Himanshu,&Ghrefat, Habes.(2023).Remote sensing of desertification and study of temporal variability of aeolian deposits in parts of the Arabian Desert for sustainable development in an arid environment.ENVIRONMENTAL RESEARCH,232.
MLA	Rajendran, Sankaran,et al."Remote sensing of desertification and study of temporal variability of aeolian deposits in parts of the Arabian Desert for sustainable development in an arid environment".ENVIRONMENTAL RESEARCH 232(2023).