https://dspace.univ-ouargla.dz/jspui/handle/123456789/20690 2026-04-23T20:45:42Z 2026-04-23T20:45:42Z MOUSSA dit KALAMOU Mahamadou LAOULI Aboulkadri YAMBA Boubacar https://dspace.univ-ouargla.dz/jspui/handle/123456789/21557 2020-12-03T18:40:35Z 2018-12-31T00:00:00Z

Titre: AGRICULTURE FAMILIALE FACE AUX DÉFIS DE LA SÉCURITÉ ALIMENTAIRE DES MÉNAGES DANS LES PAYS DU SUD Auteur(s): MOUSSA dit KALAMOU Mahamadou; LAOULI Aboulkadri; YAMBA Boubacar Résumé: Niger, a Sahelian country, is desert on three quarters of its surface. Moreover, on the strip of barely 200 km wide north of the borders that Niger shares with Benin and Nigeria, the conditions for the exercise of agriculture are difficult because of the insufficiency and the irregular rainfall and also low soil fertility. The yields of the dominant rainfed crops in Niger (millet, sorghum, cowpeas and groundnuts) are generally low, and the possibilities of extension of these crops seem a priori limited in the face of a growing population. The eight regions of Niger, 85% rural, find their livelihood in family farming. This agriculture and livestock are the two udders of the Nigerien economy and contribute to GDP at 40%. This paper looks for the food security challenges faced by family farming in southern countries, particularly in the Tahoua region of Niger. Description: Algerian Journal of Arid And Environment (AJAE)

2018-12-31T00:00:00Z ALLAOUA Noua MENAKH Mouna HAFID Hinda CHENTOUH Sana BOULHBEL Souad ABABSA labed https://dspace.univ-ouargla.dz/jspui/handle/123456789/21568 2020-12-03T18:37:00Z 2018-12-31T00:00:00Z

Titre: RELATION ENTRE FACTEURS ENVIRONNEMENTAUX ET DENSITES LARVAIRES DE Culex pipiens L. 1758 (DIPTERA-CULICIDAE) DANS LA REGION D'OUM EL BOUAGHI (HAUTE PLAINE DE L'EST ALGERIEN) Auteur(s): ALLAOUA Noua; MENAKH Mouna; HAFID Hinda; CHENTOUH Sana; BOULHBEL Souad; ABABSA labed Résumé: The lack of information on larval breeding, is often one of the elements of failure for the fight against mosquitoes, this study relates to physicochemical analysis of the larval deposits and inventory of culicidian species in seven different lodgings (2 natural and 4artificels ) located in the wilaya of Oum El Bouaghi during the year 2014-2015. Culex pipiens, a widespread species and it is ubiquitous especially in urban areas where it is considered troublesome. Our results show that Culex pipiens larval abundances are mainly correlated with the salinity of breeding sites and supporting mineral and organic pollution and can colonize low oxygen environments. The principal component statistical analysis (PCA) made it possible to establish affinities between the three inventoried species and the physicochemical characteristics of the waters of the cottages. However, these findings must be taken into account in the planning of mosquito eradication campaigns Description: Algerian Journal of Arid And Environment (AJAE)

2018-12-31T00:00:00Z BACHIR BELMEHDI Farida LESGAA Moussa GOURINE Bachir HASNI Kame https://dspace.univ-ouargla.dz/jspui/handle/123456789/21558 2020-12-03T18:40:10Z 2018-12-31T00:00:00Z

Titre: DETECTION DES CHANGEMENTS D’UN MILIEU NATUREL Auteur(s): BACHIR BELMEHDI Farida; LESGAA Moussa; GOURINE Bachir; HASNI Kame Résumé: Analyzing and understanding the dynamics of physical environments, due to quarrying, is a fundamental issue in detecting change, in semi-arid natural environments. The mountains of Ouled Ali (Beni Chougrane Mountains) contain highly unstable areas that make the region of Sig (Wilaya of Mascara) vulnerable. Observation and qualification of landscape changes is the easiest way for career monitoring. This exploitation has a direct and indirect impact on the ecosystem and the surrounding environment. The slopes of Aoud Asma Mountain (Ouled Ali Mountains) affected by the exploitation of quarries are the subject of our study whose purpose is to characterize their kinematics. To do this, the means are many and varied; each of them has specific properties as regards the type of use, the quantity measured and its scope and accuracy. The change of space mapping by a correlation of optical images is one of these methods.The work methodology adopted is based on the application of Principal Component Analysis (PCA), Intensity, Hue and Saturation of rock (IHS) and Normalized Vegetation Index (NDVI). Two Landsat images were used: Landsat5 image (25thSeptember, 1999) and Landsat7 image (02ndSeptember, 2011). It is followed by a comparison with the ground truth and a mapping of physical space dynamics of the study area. The PCA, IHS and NDVI results allowed us to highlight the bare soils, and the degradation of forest cover and halophyte vegetation. Moreover, the quarrying contributed largely, in some places, to the change of space of AoudAsma Mountain of Ouled Ali Mountains. Description: Algerian Journal of Arid And Environment (AJAE)

2018-12-31T00:00:00Z KANOUN Mohamed BELLAHRACHE Ahmed MEGUELLATI-KANOUN Amel HUGUENIN Juhann BENIDIR Mohamed https://dspace.univ-ouargla.dz/jspui/handle/123456789/21565 2020-12-03T18:41:39Z 2018-12-31T00:00:00Z

Titre: transhumance chez les agropasteurs ovins de Djelfa (Algérie): Quel type pour quel avenir? Auteur(s): KANOUN Mohamed; BELLAHRACHE Ahmed; MEGUELLATI-KANOUN Amel; HUGUENIN Juhann; BENIDIR Mohamed Résumé: Transhumance is still an important practice for many agropastoral sheep systems. By its feed and fodder inputs, it is essential for some agro-pastoralists. However, this conduct ensuring the equilibrium of these farming systems has been disrupted (changes in agricultural policies, changes in land use, increased population density as well as ovine livestock and increased climatic hazards), which has led to the emergence of diversified transhumance strategies and practices. This study aims to update the knowledge of the practice of transhumance through the analysis and valuation of spatiotemporal data from different institutions (Ministry of Agriculture, High Commission for the Development of the steppe, Universities, etc ...) and to study the importance of transhumance despite changes in the farms. The results of this study revealed 5 types of transhumance: continuous (35.0%), community (30.0%), winter (14.0%), summer (11.0%), and traditional (10.0%). They also confirm that in recent decades the contribution of transhumance remains insufficient to fill the local fodder deficit. It varies between 25 and 55%. For this purpose, agropastoralists are constantly adapting their transhumance routes / circuits to try to ensure the animal's feed needs. It appears that transhumance is vulnerable and should be secured with good governance: create an institution for transhumance and develop a policy of large-scale production and forage valorization. Description: Algerian Journal of Arid And Environment (AJAE)

2018-12-31T00:00:00Z