Fouzia Youcef

• University of Ouargla

Soil salinity has a negative impact on the microbial populations and their activities in hot arid lands. This study aimed to evaluate and compare the microbial abundance and activity in non-saline (NS) and saline (SS) soils, focusing on the impact of salinity on the mineralization of soil endogenous carbon and nitrogen in the region of Ouargla (sou...

In this paper, the effect of steel fibers recovered from pneumatic waste, dune sand (D), and its granulometric correction on the thermal conductivity of dune sand concrete was studied. Three types of steel fibers were used (f1, f2, and f3) having the lengths of 20 mm, 30 mm, and 40 mm, respectively, and diameters of 0.28 for f1 and f2 and 0.9 mm fo...

Gypsiferous soils are very common in arid and semi-arid regions. They present different shapes of accumulations having each one special origin and significance. The morphological and analytical study of gypsum crusts in two stations (N’Goussa et El-Bour) located in the area of Ouargla (Algeria) shows significant thickness of gypsum crusts in the st...

The hyper-arid climate of Ouargla area (Northern Sahara of Algeria) is important in the field of the paleoenvironmental reconstitution. This paper investigates the importance of palaeolake sediments as significant terrestrial archives for studying Quaternary climate changes. Through morphological and mainly micromorphological investigations of the...

En dépit des conditions extrêmes auxquelles sont soumis les êtres qui vivent dans le milieu désertique, les espaces complètement dépourvus de vie, ou espaces abiotiques, sont relativement restreints. En dehors de ces espaces particuliers, la végétation existe, mais son importance est fonction directe de la quantité d'eau disponible.