Abstract
The objective of this study is to determine the influence of soil physico-chemical factors on the spatial distribution of matorrals in the plain from Remchi to Beni-Saf located in the western region of Algeria. This study informs us of the relationships that soil can have on the diversity of matorrals. On the bioclimatic level, the region is characterized by semi-aridity accentuating the phenomena of therophysation. Soil analyzes carried out using known methods (Stokes Particle Size Method, Electrometric Method for pH, 1/5 Extract Method for Electrical Conductivity, Bernard Calcium Method for CaCO3, Anne Method for Organic Carbon). The results show a textural diversity; sandy-muddy “Remchi”, sandy “Rachgoun 1 and Rechgoun 2”, not far from Beni-Saf. The low clay content (Remchi: Profile 1: Horizon 1: Clays 10%, Profile 2: Horizon 1: Clays 16%, Profile 3: Horizon 1: Clays 5%, Rechgoun: Profile 1: Horizon 1: Clays 3%, Profile 3: Horizon 1: 2% Clays and Horizon 2: 3% Clays) leads to poor structural stability leading to degradation of the soil surface through erosion. The latter is revealed by the presence of small erosion claws visible on these rough slopes or almost.
Highlights
The Mediterranean region of Matorral has a very diversified range of soils because of the great variability of the natural factors which condition their formation and distribution
The objective of this study is to determine the influence of soil physico-chemical factors on the spatial distribution of matorrals in the plain from Remchi to Béni-Saf located in the western region of Algeria
The low clay content (Remchi: Profile 1: Horizon 1: Clays 10%, Profile 2: Horizon 1: Clays 16%, Profile 3: Horizon 1: Clays 5%, Rechgoun: Profile 1: Horizon 1: Clays 3%, Profile 3: Horizon 1: 2% Clays and Horizon 2: 3% Clays) leads to poor structural stability leading to degradation of the soil surface through erosion
Summary
The Mediterranean region of Matorral has a very diversified range of soils because of the great variability of the natural factors (climate, vegetation, physiography, geology and lithology) which condition their formation and distribution. The vulnerability of a soil depends very much on its vegetation cover, and its exposure to the sun with drying winds and showers according to Roose [6] The latter is currently considered as an interface in the environment and a resource for development, but the application for centuries and probably millennia of fire has resulted in an almost general salination of certain regions of the globe, such as the Mediterranean rim. This overview will provide us with indispensable elements related to understanding the formation and structure of the soil For this reason we have found it useful to present soils in conjunction with ours located at the littoral level [14].
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