Land Use/Land Cover Changes in the Tlemcen Region (Algeria) and Classification of Fragile Areas

The Tlemcen region is characterized by very diverse and steep areas exposed to gravity hazards, especially in high medium mountain areas. National Park was chosen for this study, the main objective of which map fragile close relation reduced vegetation cover due land-use changes forest fires. Multi-source data were used monitor land use/land (LULC)patterns study area between 1987 2017. methodology based on an object-oriented classification Landsat images, using K nearest neighbor method mapping major LULC classes at national park level. results show that constantly changing area. In 1987, landscape made up (16.5%) oak forests (holm oak, cork zean oak) Aleppo pine, then deteriorated following repeated fires nineties barely represent 7.22% surface 1995, followed a fast reclamation, with doubling 10 years (13.46% 2005), near stabilization 2017 14.68% These mutations are mainly fluctuations anthropogenic action. Despite past declines disturbances, current forested represents significant capital classified as be protected developed.