تطور النظام الواحي وعلاقته بالقصور في الصحراء المنخفضة الزيبان

Abstract

Most of the Algerian Sahara oases formed in the middle ages during a commercial boom ascendency movement ten horns , long distance transit needs led to its inception so no water is created by, but the water was instrumental in locating its presence, and it was this oasis village network's active role in the establishment of reconstruction in the desert. Low desert is one of the areas that make up the desert, characterized by its intense and pleasant villages network from al-ziban area of study, and which define the demographic shifts in recent year and supervise the development and economic and a disintegration of the triangular-based areas system components ( Palace, water , Palm ) and turning many of these urban centers urban oasis villages leading to the creation of mental imbalance in urban fabric of these centers in an ecosystem characterized by fragile, as ' found for these transitions pros Including the integration of the national economy and oasis economy under economic globalization areas as defined by the desert of the middle ages .