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El-Hadj Zoubida

  • Biodiversity Journal, 12 (3): 0655-0662

    Haddad Fatma Zohra, Benaissa Noureddine, El-Hadj Zoubida, Temimi Yousra, Bekratou Djamel, Kallouche Mohamed Mustapha, Belkhoudja Moulay & Mouffok Salim
    Coastal dune vegetation: dynamic and influence of anthropogenic factors
    https://doi.org/10.31396/Biodiv.Jour.2021.12.3.655.662

    ABSTRACT
    This study describes the vegetation dune systems status in relation to antroipogenic disturbance factors in the coastal stretch of the Madrague area in Algeria. This study was carried out during the spring and summer of 2018. Particular emphasis was given to flora composition by assessing their frequency and diversity. Vegetation sampling was carried out along twenty shore-perpendicular transects recording different data. The flora inventoried highlights a strong dominance of the Asteraceae family, which accounts for 24.32% of all inventoried species. Analysis of the biological spectrum shows the predominance of therophytes, with rate of 32.43%, indicating an average degradation whose origin is anthropogenic action. The IP disturbance index of our study area is about 51 %, it confirms a moderately strong degradation of the natural environment. Biogeographically, the vegetation of the study area is constituted by a heterogeneous set of elements of various origins dominated by the Mediterranean element. From the cartographic point of view, the study of satellite photos enabled us to confirm the degradation of the plant revetment by comparing the areas covered between 2003 and 2018. A notable diminution of this is reported, due to the man activity and his herds.