摘要：Jiana Plain, located in the west of Romanian Plain (Oltenia Plain sub-unit), is one of the areas in Romania where some of the worst transformations of the forestry and agricultural environment have been observed. Here, the lands have been under the pressure of several degenerative factors, such as: uncontrolled deforestation on sandy terrains or poor crop management. This study aims to make a spatio-temporal analysis starting with the identification of geomorphological processes in the areas where the forest-covered surface has been deforested, and continuing with the climatic or anthropogenic factors that have left their mark on the environment. The case study focused on Burila-type sand dunes in the north of Ţigănaşi village, and on Jiana-type dunes in the west of Pătulele village, where deforestation on sandy soils has led to visible soil transformations over the past 40 years. The changes of recent decades have been analyzed with the help of Landsat images, with the data being provided by the expert reports on landuse, as well as their validation through field visits and on-site measurements. For the analysis of land degradation, as a result of the aridization process, the current situation of the vegetation layer was taken into account by using the Normalized Difference Vegetation Index and the data extracted from the Corine Land Cover database between 1990, 2006 and 2018 using map overlay method. The results are clear and reveal the fact that under the influence of the climatic factor the soils were under additional pressure so, the geomorphological processes were amplified, especially where the vegetation is missing, and corroborated with the wind factor, led to the destabilization and movement of sand dunes.
