Contribution about the environment of El-Bayadh region in the southern-west of Algeria

摘要

This study is made for the purpose of giving an idea about the biotic components of a steppe zone characterized by a specific richness, the bibliographical synthesis revealed a special floristic wealth is found under three types of landscapes; rocky plateaus with herbaceous vegetation. The second is a shrub steppe and the third is the forest. Despite the scarcity of plants, the plants in the region are specific. The fauna of the region is characterized by a large diversity. In 108 vertebrate species, two birds and four mammals are at risk (Houbara bustard and the bald Ibis.) and (The Dorcas Gazelle, the dune gazelle, the Atlas Goundi and the Fennec are endangered. At the end of this study, it appears that the degradation of the steppe environment has forced migration to the city of El Bhayed as a solution.