Contribution à L'étude de la végétation urbaine de la ville de Sétif : Etat phytosanitaire

Abstract

This study focuses on the floristic diversity and dendrometric characteristics of trees in two urban green spaces in the city of Sétif: Reffaoui Garden and Abdelhamid Ben Badis Garden. The main objective is to assess floristic composition, tree structure, and stand development in order to better understand their role in preserving urban biodiversity. The methodology was based on species inventory, botanical identification, and the measurement of dendrometric parameters, particularly trunk circumference and tree height. The results revealed considerable floristic diversity in both gardens, with higher species richness in Reffaoui Garden (19 species) compared to Abdelhamid Ben Badis Garden (13 species). Dendrometric analysis showed a predominance of trees belonging to small and medium size classes, reflecting active growth dynamics. Reffaoui Garden exhibited a more diverse and balanced tree structure, whereas Abdelhamid Ben Badis Garden was characterized by a relatively mature and stable tree cover. These findings highlight the importance of urban green spaces in maintaining biodiversity, improving living conditions, and conserving urban plant heritage.