Arbres et arbustes dans la ville de Sétif : l’état phytosanitaire

Abstract

This thesis focuses on the phytosanitary diagnosis of trees in the city of Sétif, particularly along the Constantine Road and in the El Amir Abdelkader Garden. The main objective is to assess the health status of the trees, identify the diseases, and formulate recommendations for effective management of urban tree heritage. The methodology includes an inventory of tree species and dendrometry measurements, such as the circumference and height of the trees. The results reveal a significant species diversity, with 21 species belonging to 11 botanical families along the roads, and 54 species distributed across 23 families in the garden. The dendrometry measurements indicate that the majority of the trees are in a growth phase, although some species, such as Styphnolobium japonicum and Platanus acerifolia, exhibit high circumferences, suggesting that they are mature and in a phase of stability. These observations highlight the importance of monitoring and protecting urban trees to maintain biodiversity and the health of urban ecosystems.