Cartographie de la salinité des sols par télédétection dans les régions nord et nord- est de la wilaya de Djelfa

Abstract

Soilsalinizationrepresents a major constraint to agricultural development, particularly in aridregions. This researchaims to evaluatesoilsalinity in the Djelfa region by integrating Landsat 8 OLI satellite imagery. The adoptedmethodology combines severalremotesensing techniques. Afterperforminggeometric and radiometric corrections, severalvegetation and salinity indices-such as NDVI, RSI, and SI-werecomputed. The analysisrevealedsignificant spatial variability in soilsalinity, identifyingcritical zones at risk of degradation. The generatedmaps serve as valuabletools for guidingsustainable land management and soilrehabilitation efforts. To ensure the reliability of remotesensingresults, ground-truth validation isstronglyrecommended.