Contribution to study of soill salinity in the region of Fetzara Lake (Northeast of Allgeria)

The lake of fetzara is located in the north-east of algeria, it is situated at 18 km south-east of the city ofannaba. it lies down on 17 km from east to west and 13 km from north to south with an area of about 18600ha, it was officially classified as an area ramsar, which involves protection of this location. several studieshave been conducted on water and soil of the region fetzara [1-7]. these studies carried out to monitor thesalinity and to highlight its origins and factors governing it. the main objective of this study was to evaluate soilproperties of fetzara lake that are very affected by the phenomenon of salinization and to study their variationwith depth. the samples were taken on the first two layers (0-20 cm and 20-40 cm) at 8 points around thefetzara lake or a total of 16 samples. the analytical results indicate that soil salinity has reached its maximumin the north-east (region of wadi zied) and south of lake (region of cheurfa) with a dominance of sodiumchloride-chemical facies.