Biodiversité et typologie des habitats écologiques au sein d’une aire protégée : arboretum de Djebel Ouahch (Constantine)

Abstract

Our work aims to analyse the typology of ecologic habitats and cartography of humid vegetation in protected area of Djebel Ouahch (Constantine), and also to analyse the viability of humid zone as an object of conservation. This analyse take en consideration the principal variables: biologic (flora), chronologic and ecologic (essentially the variables of edaphic order) that determine the distribution of vegetal communities and their habitats. The methodology takes en count various technics of specific analyse for satellite imagery and for a phyto-sociologic approach to identify, determine and appreciate the edaphic variables which determine the various types of habitats and the distribution of vegetal communities in the studied zone. The obtained results showed that there is both floristic and faunistic biodiversity. The floristic biodiversity was characterized by the presence of approximately 43 taxons divided in 14 botanic families where 62,5% of this taxons were introduced. On the other hand, the faunistic biodiversity was characterized by the presence of aquatic avifauna in humid habitats (3rd and 4th lac). The lecture of pedologic profile of 4th lake showed the existence of habitats typology constituted by: Typhaie, Junçais and Phragmetaie.