干旱区生态环境知识资源中心(Arid): Evaluation of Desertification Severity in El-Farafra Oasis, Western Desert of Egypt: Application of Modified MEDALUS Approach Using Wind Erosion Index and Factor Analysis

Arid

DOI	10.3390/land11010054
	Evaluation of Desertification Severity in El-Farafra Oasis, Western Desert of Egypt: Application of Modified MEDALUS Approach Using Wind Erosion Index and Factor Analysis
	Fadl, Mohamed E.; Abuzaid, Ahmed S.; AbdelRahman, Mohamed A. E.; Biswas, Asim
通讯作者	AbdelRahman, MAE
来源期刊	LAND
EISSN	2073-445X
出版年	2022
卷号	11 期号:1
英文摘要	Desertification is a serious threat to human survival and to ecosystems, especially to inland desert oases. An assessment of desertification severity is essential to ensure national sustainable development for agricultural and land expansion processes in this region. In this study, Index of Land Susceptibility to Wind Erosion (ILSWE) was integrated with a Modified Mediterranean Desertification and Land Use (MEDALUS) method and factor analysis (FA) to develop a GIS-based model for mapping desertification severity. The model was then applied to 987.77 km(2) in the ElFarafra Oasis, located in the Western Desert of Egypt, as a case study. Climate and field survey data together with remote sensing images were used to generate five quality indices (soil, climate, vegetation, land management and wind erosion). Based on the FA, a weighted value was assigned to each index. Five thematic layers representing the indices were created within the GIS environment and overlaid using the weighted sum model. The developed model showed that 59% of the total area was identified as high-critical and 38% as medium-critical. The results of an environmentally sensitive area index suggested by the original MEDALUS model indicated similar results: 18.37% of the total area was classified as high-critical and 78.73% as medium-critical. However, the sensitivity analysis indicated that weights derived from FA resulted in better performance of the developed spatial model than that derived from the original MEDALUS method. The proposed model would be a suitable tool for monitoring vulnerable zones, and could be a starting point for sustainable agricultural development in inland oases.
英文关键词	desertification wind erosion El-Farafra Oasis modeling GIS ILSWE MEDALUS factor analysis
类型	Article
语种	英语
开放获取类型	gold
收录类别	SSCI
WOS记录号	WOS:000912638100001
WOS关键词	GIS ; MODEL ; SUSTAINABILITY
WOS类目	Environmental Studies
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393652
推荐引用方式 GB/T 7714	Fadl, Mohamed E.,Abuzaid, Ahmed S.,AbdelRahman, Mohamed A. E.,et al. Evaluation of Desertification Severity in El-Farafra Oasis, Western Desert of Egypt: Application of Modified MEDALUS Approach Using Wind Erosion Index and Factor Analysis[J],2022,11(1).
APA	Fadl, Mohamed E.,Abuzaid, Ahmed S.,AbdelRahman, Mohamed A. E.,&Biswas, Asim.(2022).Evaluation of Desertification Severity in El-Farafra Oasis, Western Desert of Egypt: Application of Modified MEDALUS Approach Using Wind Erosion Index and Factor Analysis.LAND,11(1).
MLA	Fadl, Mohamed E.,et al."Evaluation of Desertification Severity in El-Farafra Oasis, Western Desert of Egypt: Application of Modified MEDALUS Approach Using Wind Erosion Index and Factor Analysis".LAND 11.1(2022).