Diachronic Analysis of the Forest Vegetation Dynamic in the Daïa-Saïda Mountains (Western Algeria) and the Identification of the Degradation Factors

This scientific article focuses on the Daïa-Saïda Mountains located in Western Algeria, the purpose of this article is to study the forest formations dynamic where the forest vegetation is very representative of thermophilic groups of western Algeria, dominated by the Aleppo pine and Barbary cedar but with remarkable bushy undergrowth. The results allow us to affirm the regressive dynamic of the forest in this area with the increase of matorrals and deforestation. The northern part of the massif is the most affected by this phenomenon with a very large bare area due to repeated fires that has affected it.