Amar Khadoumi

• Biodiversity Journal, 13 (4): 0877-0883

  Belkacem Daoudi, Kouider Cherifi, Fathi Abdellatif Belhouadjeb & Amar Khadoumi
  The effect of phytoecological factors on the natural regeneration of Aleppo pine (Pinus halepensis Miller, 1768) in semiarid zones
  https://doi.org/10.31396/Biodiv.Jour.2022.13.4.877.883

  ABSTRACT
  The aim of our study is to define the factors influencing the natural regeneration of Aleppo pine (Pinus halepensis Miller, 1768) in the Mediterranean forest, particularly in the most important forest (massif of Senalba Chargui) in Algeria, characterized by its semi-arid climate. Stratified and subjective sampling are adopted in our work; stratified sampling makes it possible to obtain representative stations for the various existing ecological situations. We divided our study area into 4 stations according to the massif, the slope exposure and the type of the soil. For every station, subjective sampling method is used to install temporary observation plots; we installed in our study stations seventy (70) temporary plots, and the plot is a circular sampling unit that covers an area of 400 square meter. In each plot, a phytoecological survey was carried out to determine the environmental parameters, such as altitude, the slope exposure, lithology, anthropic influence (pasture and cutting); as well as other factors related to the structure of the vegetation, such as the second and third dominant species, overall and per-stratum cover and the elements of the soil cover. We used principal component analysis (PCA) to identify the homogeneous sample plots (compared to the regeneration), descriptive statistics, and the correlation coefficient. The number of seedlings per square meter varies between 0 and 0.23, and there are several factors affecting these results.

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