تحليل وإحصاء النباتات التلقائية في ولاية غرداية: دراسة ميدانية لمنطقتي (سبسب والنومرات واد الدرين وواد سبسب)

Abstract

The végétation is analyzed by two main descriptors that are bioclimat and human action. The impact of thèse two factors is widely expressed by a loss and substitution of increasingly rapid of species of vegetation. Our study is based on the analysis and inventory of plant biodiversity in the Ghardaia region, where we studied two different stations, namely « Valley El Malleh » in the municipality of Sebseb and « Valley El drine » in the municipality of Noumerat. The study allowed us to count 28 species represented by 16 families, while the most represented is that of the "Asteraceae" by 25%, and there are 11 families represented by one specie (3.57%). Dominated by Mediterranean elements (46.43% ), this flora is morphologically characterized by the dominance of perennials plants (40,38%) and biologically by Thérophytes (39,29%) . In terms of propagation, we noticed that the most dominance type of plant is Cleome arabica in both stations. In terms of density, it varies by species and the stations of studies.