This study aims to study the spatio-temporal dynamics of natural resources using geomatic techniques by exploiting multispectral data. The study consists of the use of Landsat 5 TM and 8 OLI satellite images of three dates, 2000, 2009 and 2023, which are subjected to pre-processing techniques in order to eliminate errors and distortions affecting the reliability of radiometric values. The analysis of the obtained images is carried out based on digital processing, namely, Supervised classification by maximum likelihood and calculation of spectral indices NDVI NDMI. The results revealed that significant changes occurred over the 23 years, recording a considerable shift in land use units. The analysis of the NDVI and NDMI indices revealed a deterioration in vegetation health and a depletion of water reserves in wetlands of around 98%, which provides information on the extent of the changes in this region. This study provides informative and decision-making support for planning the conservation of natural resources and establishing successful intervention strategies.