https://dspace.univ-ouargla.dz/jspui/handle/123456789/3996 2026-04-24T09:58:00Z https://dspace.univ-ouargla.dz/jspui/handle/123456789/6724 Titre: LE GHOUT DANS LE SOUF; L’AGONIE D’UN SYSTEME INGENIEUX Auteur(s): SENOUSSI A; BISSATI S; LEGHRISSI I Résumé: The Sahara, a space characterised by a permanent water deficit, is often perceived as a wasteland and a repulsive territory in which living beings development has quantitative as well as qualitative requirements towards water. The protection and rational use of this resource are an obligation and a vital necessity. Thus, the Saharan agriculture is related to water mobilisation and its use control that aims to avoid wasting, getting a maximum benefit, and envisaging the exploitation and management of large surfaces. The Souf, an illustration model thanks to its singular agrarian geometry in which local genius is strongly distinguished by its extraordinary local know-how adequate to the Saharan conditions, has implemented ingenious techniques since millennia, especially those related to space management. Indeed, the Ghout, agrarian crater, remains functional hitherto and reflects durability where local producer is characterized by his wisdom and a perfect knowledge of the area he lives in. The current study aims to set an outgoing inventory through 5 zones of the large agroecological area (Souf) relying on criteria such as local potentialities, state and evolution of the Ghout system, and local key players strategies. Description: Revue des bioressources. 2012-06-01T00:00:00Z https://dspace.univ-ouargla.dz/jspui/handle/123456789/6711 Titre: PLACE DES RONGEURS DANS LE RÉGIME TROPHIQUE DE LA CHOUETTE EFFRAIE Tyto alba DANS LA RÉGION DE TOUGGOURT (ALGÉRIE) Auteur(s): HADJOUDJ M; MANAA A; SEKOUR M; SOUTTOU K; MERZOUKI Y; DOUMANDJI S Résumé: The present study is undertaken in the area of Touggourt. The latter is in the South-east of Algeria. It corresponds to the high part of the Righ Wadi. It is bordered in the south and the east by the Great Eastern Erg, in north by the palm plantations of Megarine and the West by sand dunes (33° 02' at 33° 12' NR., 5° 59' at 6° 14' E.). The 153 pellets of rejection of the barn owl are collected on the level of the palm plantation of Ranou. This study has allowed the identification of 61 species-preys (Sm = 1.96 + 1.7 species). These last are divided into 14 preys categories. The rodents add up nearly 12 species-preys represented by a manpower of 168 individuals. On 468 preys introduced by Tyto alba, the rodents occupy the first position in relative terms of abundance (A.R. % = 35.9%) that in biomasses (B % = 44.7%). Among the most consumed species, it is to be quoted Gerbillusnanus with 41 individuals (8.8%), followed by Musspretus with 36 individuals (A.R. % = 7.7%) and Gerbillusgerbillus with 31 individuals (A.R. % = 6,6%). On the other hand for the biomasses, Rattusrattus occupies the first place (B % = 14.1%), followed by Gerbillusgerbillus (B % = 7.1%). As for Gerbillusnanus and Musspretus, they occupy the third rank (B % = 5.4% each one). Description: Revue des bioressources 2012-06-01T00:00:00Z https://dspace.univ-ouargla.dz/jspui/handle/123456789/6717 Titre: DEVELOPPEMENT VEGETATIF ET LONGEVITE DE L’Acacia raddianaAU SAHARA SEPTENTRIONAL Auteur(s): HANNANI A; CHEHMA A Résumé: This study aims to identify some of the morphological, properties, which helped Acacia raddiana of Fabaceae family to growing and reproducting in arid areas like Algerian Sahara.In order of this, we have identified the area named "Méguiden" of the department of Timimoun, for the selection of trees that were categorized into three sections of age depending on the measurement circumference of their trunks. The obtained results confirmed that the genus Acacia raddiana, adopt some strategies leading to effective use of water from the layer surrounding the securities and as well as; hairy leaves and inflorescences, and as well as the presence of long thorns. All these factors, this specie to be one of the most important phreatic plants, which can supply water, located in the depths of the soil. Description: Revue des bioressources 2012-06-01T00:00:00Z https://dspace.univ-ouargla.dz/jspui/handle/123456789/6701 Titre: EFFET ANTIFONGIQUE DES EXTRAITS AQUEUX ET METHANOLIQUE DE Satureja calamintha ssp.(Nepeta) briq Auteur(s): BOUGANDOURA N; BENDIMERAD N Résumé: Natural extracts resulting from plants contain a variety of biologically active molecules. In this context, we tried to evaluate the antifungal activity of aqueous and methanol extracts prepared from the leaves of Satureja calamintha. Quatitative estimation of total phenol and flavonoid content by a colorimetric assay showed that the aqueous and methanol extracts are rich in these components. Assessment in vitro antifungal activity of plant extracts against three fungal species (Fusarium oxysporum, Aspergillus flavus, Cladosporiun herbarum) show that the methanol extract had high moderate antifungal activity against A. flavus with 87,5% inhibition rate. However, the aqueous extract is revealed without any effects on the growth of all fungal species. Description: Revue des bioressources 2012-06-01T00:00:00Z