Lake of Fetzara
The Lake of Fetzara is located in northeastern Algeria, southeast of the city of Annaba. It measures from east to west and from north to south, with an area of about . It was officially classified as an area "Ramsar", which involves protection of this location. Several studies have been conducted on water and soil of the region Fetzara [1-7]. These studies were carried out to monitor the salinity and to highlight its origins and factors governing it. The main objective of this study was to evaluate soil properties of Fetzara Lake that are affected by the phenomenon of salinization and to study their variation with depth. The samples were taken on the first two layers (0–20 cm and 20–40 cm) at eight points around the Fetzara Lake, for a total of 16 samples. The analytical results indicate that soil salinity has reached its maximum in the northeast (region of Wadi Zied) and south of Lake (region of Cheurfa) with a dominance of sodium chloride-chemical facies. Fetzara Lake is located 18 km southeast of the city of Annaba in the extreme east of Algeria. It is from east to west and from north to south with a surface of about . This area is subject to a Mediterranean climate with two distinct seasons: one humid and another dry. The lake water is temporary depending on the intensity of the rainy season on which it depends almost exclusively, it is generally an area of over 13000 ha of land flooded in winter and forming large meadows. The presence of a main channel across the lake from west to east provides the drainage, but it is insufficient to evacuate the water in the winter. The geologist Henri Fournel discovered deposits of magnetite near the port of Bône in 1843. The mine is about from Bone in the Mokta hill beside the Lake of Fetzara at the foot of a mountain chain that runs from south to north, then turns east of the port of Bone. The name "Mokta-el-Hadid" (the iron pass) indicates that the deposit of iron has long been known, but there is no sign that it was worked before the first small-scale attempts in 1840.
