De nombreuses périodes difficiles ont été enregistrées, liées soit à des questions de santé et (ou) d'environnement. Malgré leurs durs impacts économiques et sociaux, sans ces périodes de stress, les pays ne peuvent évaluer avec précision l'efficacité de leurs stratégies de gestion et de développement. La période épidémique de 2020 met en évidence que le revenu national, la productivité économique et la survie sociale sont principalement liés aux secteurs de survie nationale, aux employés nationaux, à la production et à la qualité. La classification hiérarchique du...

Tunisia is facing unprecedented challenges of water management related to limited water resources and the likely consequences on soil salinization, agricultural production and land degradation. This situation raises the concern of the sustainability of date palm cultivation, which represents a major socio-economic asset in southwestern of the country. Integrated approaches of various irrigation water quality indices and geostatistical analysis coupled with field investigation and farming survey were applied to evaluate the evolution of key parameters influencing the development of date palm...

Numerous challenging times have been recorded related either to healthy and (or) environmental issues. Despite their tough economic and social impacts, without these stressful periods, the countries cannot evaluate accurately the efficiency of their management and development strategies. The epidemic period of 2020 highlights that national income, economic productivity and social survival are related principally to national survival sectors, national employees, production, and quality. The hierarchical classification sector income is redefined. Neither ,tourism, nor industrial exportation and...

Es wurden zahlreiche schwierige Zeiten verzeichnet, die entweder mit Gesundheits- oder (oder) Umweltfragen zusammenhängen. Trotz ihrer harten wirtschaftlichen und sozialen Auswirkungen können die Länder ohne diese stressigen Zeiten die Effizienz ihrer Management- und Entwicklungsstrategien nicht genau bewerten. Die Epidemieperiode 2020 macht deutlich, dass das nationale Einkommen, die wirtschaftliche Produktivität und das soziale Überleben in erster Linie mit den nationalen Überlebenssektoren, den nationalen Beschäftigten, der Produktion und der Qualität zusammenhängen. Die...

Groundwater is of critical social and economic importance in arid and semi-arid regions. In Southwestern Tunisia, the increasing water demand is mainly supplied by the deep aquifers of SASS multi-layered system (the Continental Intercalaire "CI" and the Complex Terminal "CT"). The sustainability of the CI resources is, currently, threatened by anunknown oil spill detected in a number of water wells in Kebili region and by the brine contamination of Djemna well. Thus, the study focuses on identifying the principal mechanisms governing this pollution and on determining the principal factors...