TITLE:
Some Anthropic Aspects in Meridional Region of Sebdou (Oran-Algeria)
AUTHORS:
Noury Benabadji, Amina Benabadji Bouchenak-Khelladi, Regagba Zineb, Khelladi Medarbal
KEYWORDS:
Human actions, Steppe, Flora, Botanical Characterization, Beni-Snous, El-Aricha (Algeria)
JOURNAL NAME:
Open Journal of Ecology,
Vol.4 No.11,
August
25,
2014
ABSTRACT:
Relying essentially on human data (social structure, demography,
population repartitions, migratory movements, agro-pastural activities), the
authors, from their studies, note that these regions are an extension of
hamlets and other groups. Highlands gather a small population that seems to
settle. Responsible human disturbance (clearings, cultures, urbanization, etc.)
modified a large part of the actual state of vegetation structures. The results
also show that most of the population is concentrated in the main towns. This
concentration causes consumption of pre-forest land and rangelands. The average
annual extension can sometimes reach 2.4 Ha. Hamlets, home grouping seem to
impose a lifestyle approaching that of centers located in the North. At the
bioclimatic level, the results show that the cold thermal variations promote
contact between woody vegetation and steppe formations with thermal determinism
(formation often in xerophytes thorny pads). Droughts often advocate regressive
dynamics of these plant formations which are quite degraded. On the other hand,
stressing continuity issues related to human actions, the authors present the
floristic composition, detailing the botanical plant species including
biological and morphological types. The therophyte type predominates in all
areas explored and their percentage can reach 73% in the steppe and 49% in
Beni-Snous.