Biosurveillence de la qualité des sols au niveau de quelques biotopes de la wilaya de Khenchela par l’utilisation d’une espèce bioindicatrice Hélix aspersa (Müller, 1774)
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Date
2017
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Université Abbes Laghrour -Khenchela-
Abstract
Abstract
In this experimental study we were interested in the evaluation of impacts
pollution of the grounds of some biotopes of Khenchela by the use of a
bioindicator, Helix aspersa, (Mollusca, Gasteropoda), snail very abandant on the
level of four sites study.
The physicochemical analysis of grounds reveals us that we are in the
presence of ground with argilo-muddy texture, slightly basic (pH > 7,5) no
saline (conductivity, 1-0,3 m mohs/cm), who retain little hygroscopic moisture
and who have a rather strong porosity between 10-20% in the four sites of
studies.
The proportioning of two biomarqueurs (AChE and GST) reveals that
the sites of Fais, Kais and El-Hamma. Ain Toiula is the site less polluted.