Diachronic analysis of the spatial spread of the city of Ziguinchor

Urban growth in Africa is certainly manifested by an increase in the number of people in cities, but above all by a process of continuous spatial sprawl (horizontal densification), which can be explained by a range of political, economic and socio-cultural factors. As a result, the city of Ziguinchor is not immune to this problem. This document, using a methodological approach based on the use of geomatics tools and socio-economic data, quantifies and analyzes the issues and consequences of the spatial dynamics of the city of Ziguinchor in relation to the influence of crises (drought of the 1970s-1980s, the Casamance conflict). This diachronic and socio-economic reading of the city facilitates the monitoring of spatial dynamics through the various extensions from 1914 to the present. This makes it possible to appreciate the advance of the urban front, to measure the rate of retreat of the communal agricultural space, to see the evolution of the territorial recomposition of land use over the years. This, to better anticipate land disputes, control land use, and meet the multiple challenges of urban governance