CONSIDERATION OF DENDROMETRIC AND ECOLOGICAL CHARACTERISTICS AS INDICATORS OF REHABILITATION OF ATLAS PISTACHIO STANDS (PISTACIA ATLANTICA DESF.): CASE OF THE SOUTHWESTERN REGION OF NAAMA (WESTERN ALGERIA)

As part of this research, we made a dendrometric and ecological characterization of the Atlas pistachio stands located in the Naâma region through a series of dendro-architectural measurements and observations and floristic surveys. These stands are characterized dendrometrically by the presence of a pure stand with a regular structure dominated by very big wood (VBW) with 51,20%. The healthy tree and resilient tree ARCHI type are the most dominant with 65,10% and 23,20% respectively. From an ecological point of view, the stands studied harbor a low floristic diversity, made up of 21 species belonging to 20 genera and 13 botanical families. This low richness which is characterized by the dominance of chamaephytes (47,62%) and therophytes (23,81%) is the result combined of anthropogenic pressure and climatic aridity.