干旱区生态环境知识资源中心(Arid): Assessment of the spatial dynamics of sandy desertification using remote sensing in Nemamcha region (Algeria)

Arid

DOI	10.1016/j.ejrs.2023.07.006
	Assessment of the spatial dynamics of sandy desertification using remote sensing in Nemamcha region (Algeria)
	Bouzekri, Abdelhafid; Alexandridis, Thomas K.; Toufik, Aliat; Rebouh, Nazih Y.; Chenchouni, Haroun; Kucher, Dmitry; Dokukin, Petr; Mohamed, Elsayed Said
通讯作者	Rebouh, NY
来源期刊	EGYPTIAN JOURNAL OF REMOTE SENSING AND SPACE SCIENCES
ISSN	1110-9823
EISSN	2090-2476
出版年	2023
卷号	26 期号:3 页码:642-653
英文摘要	Sandy Sandy desertification is considered one of the environmental problems in the pre-desert and steppe ranges of Algeria. In order to reveal the spatial dynamics of sandy desertification, a multivariate linear equation was used to assess the relationship between spectral data of Landsat images and ground-surveyed soil samples. The multivariate models were used to estimate sand, silt, and clay percent, and the USDA textural triangle classification was used to specify soil texture by applying the limits of the textural variables in a GIS environment. The statistical analysis showed a strong correlation between blue, SWIR 1, SWIR 2, sand, silt, and clay contents. The results showed that the sandy loam are the most widely distributed soil textural class 52% and 42% in 2013 and 2019, respectively. Furthermore, spatial change detection results between 2013 and 2019 illustrated that 12% of the entire study area have suffered signs of desertification that have a negative change of soils to sandy and loamy sand. The soil indices indicate a strong relationship with the top soil sand content, and the NDVI values varied between 0.06 and 0.44 in 2013 and -0.01 and 0.3 in 2019, indicating a severe regression in vegetation conditions over time. Thereafter, land cover and land use analysis show the severity of land degradation and the irreversibility of sandy desertification, agriculture land decreased from 31% in 2013 to 4% in 2019, pasture land decreased from 21% to 13%, bare land increased from 22% to 36% and sandy land increased dramatically from 26% to 47%.
英文关键词	Sandy desertification Soil texture Change detection Nemamcha
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001149654400001
WOS关键词	SOIL TEXTURE ; VEGETATION ; LAND ; PATTERNS ; SAHARA ; COVER ; AREA
WOS类目	Environmental Sciences ; Remote Sensing
WOS研究方向	Environmental Sciences & Ecology ; Remote Sensing
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396044
推荐引用方式 GB/T 7714	Bouzekri, Abdelhafid,Alexandridis, Thomas K.,Toufik, Aliat,et al. Assessment of the spatial dynamics of sandy desertification using remote sensing in Nemamcha region (Algeria)[J],2023,26(3):642-653.
APA	Bouzekri, Abdelhafid.,Alexandridis, Thomas K..,Toufik, Aliat.,Rebouh, Nazih Y..,Chenchouni, Haroun.,...&Mohamed, Elsayed Said.(2023).Assessment of the spatial dynamics of sandy desertification using remote sensing in Nemamcha region (Algeria).EGYPTIAN JOURNAL OF REMOTE SENSING AND SPACE SCIENCES,26(3),642-653.
MLA	Bouzekri, Abdelhafid,et al."Assessment of the spatial dynamics of sandy desertification using remote sensing in Nemamcha region (Algeria)".EGYPTIAN JOURNAL OF REMOTE SENSING AND SPACE SCIENCES 26.3(2023):642-653.