Globally, soil salinity is a major issue, especially in arid and semi-arid areas. Soil salinity has been effectively studied through the use of field measurements and remote sensing techniques. Investigating the degree of soil salinity in a desert region in North Africa is the aim of this study. This study is being done in the desert southern region of Algeria. The results of the field survey of 76 soil samples were compared with spectral image data obtained via remote sensing. Using metrics like the Electrical Conductivity (EC) and Sodium Absorption Ratio (SAR), Salinity was measured in the lab. The spectral index NDSI values of the SENTINEL 2 images were compared to the SAR and EC measurements made for soil samples in our research area. According to the lab results, 76.3% of the soil in the research region is non-salty, 13.2% is slightly saline, and just 3.9% is extremely saline. The analysis of variance revealed higher salinity levels in the eastern regions. The IDW interpolation maps of the EC and the SAR supported earlier findings. Furthermore, a strong correlation (r = 0.789) was found between the EC and SAR index. The results of the laboratory tests and the spectral index NDSI did not correlate, according to the correlation test. The spatial distribution of soil salinity in the Messaâd region was successfully interpolated and mapped in this study using geomatic techniques
soil salinity; irrigated perimeter; electrical conductivity; Messaâd; Algeria
Lebbaz, N., Anteur, D., Benaradj, A. (2026): Spatial Variation Analysis of Soil Salinity in an Irrigated Perimeter in Messaâd region (Djelfa, Algeria). Scientia Agriculturae Bohemica, 57, 1, DOI: 10.7160/sab.2026.570101