Vol. 1, Issue 3 (2016)
Importance of spontaneous plants of steppe arid regions ouled djellel biskra (Algeria)
Author(s): Deghiche-Diab N, Deghiche L, Kachai S
Abstract: Algerian steppes are now experiencing a sharp decline resulting in an ecological imbalance and decreased pastoral performance. Based on surveys conducted in the study region in 2015, an inventory of spontaneous plant species was carried out, using the linear method, the pastoral local inventoried taxa in three selected sites revealed a richness of 45 flora species belonging to 41 genera and 26 families. Among the most represented families, Chenopodiaceae with 5 species (11.11%), Fabaceae and Brassicaceae with 4 species for each (8.88%), followed by Asteraceae, Lamiateaeand Zygophyllaceae with 3 species for each (6.66%). The 10 other Families are represented by only one species (2.22%). 31 of the 45 sampled species are perennial and 14 Acheb (annual). The abundance of flora is deferent for the same species from one site to another. The bio-morphological forms are noted, the chamaephytes are more dominant with 21 species (46%).