The Souf is part of the northern North Eastern Sahara. Its geographical configuration characterized by a flat topography and absence of natural outlet. Formerly, it located in the Eastern Erg of the caravan routes which has prevented the emergence of major cities. The voluntarism of Saharan integration and the reconsideration of territorial grid have led to massive unorganized urbanization; the latter is responsible for serious problems related to the urban environment; the degradation of architectural heritage and cultural heritage; soil degradation and water. Changes in land use and land cover are critical elements of contemporary strategies for natural resource management, and for monitoring environmental change. In this context, a GIS derived from the application stages of geospatial technologies and remote sensing methodology from 1972 to 2016. This article attempts to analyze the spatial consequences of these policies on morphological transformation, and the changes imposed on this space. The change detection analysis indicates that the built-up area was increased by almost 30 times for the northern conurbation where the merger took place between Guemar and Taghzout, towards the south of the valley the built-up area was increased by more of 108 times or agglomerations Kouinine; El Oued; El Bayadha and Robbah eventually join. In this context, the predominance of traditional culture has declined as a result of market gardening, where the area occupied by the pivots has increased from 122 square kilometers to more than 317 square kilometers between 2005 and 2016.