1. The territorial dynamics of the South-Western Sahara in Algeria A dynamic and interactive cartography project Yaël KOUZMINE 1 – Tayeb OTMANE 2 – Badr-Eddine YOUSFI 2 1 Laboratoire ThéMA UMR 6049 CNRS – UFC 2 Laboratoire EGEAT – Université d’Oran - CRASC http://www.rresa.org

2. Outlines 2. The project of Saharan territorial observatory 1. The PHC Tassili (n°07MDU710) Research program 3. The first step : the interactive cartography interface

3. 1. The research program – The studied area www.algerie-dz.com 540 000 inhabitants in 1998 2 wilayas (administrative districts) Adrar & Bechar 585 000 km 2 A desert climate 10 urban agglomerations Strong mutations since 40 years A traditional system based on the oasis model : agriculture & trans-Saharan trade Adrar Bechar 1. The research program Studied area The mutations Background Themes 2. The project of T.O. 3. Interactive cartography The stakes Sustainability

4. 1. The research program – The studied area www.algerie-dz.com 540 000 inhabitants in 1998 2 wilayas (administrative districts) Adrar & Bechar 585 000 km 2 A desert climate 10 urban agglomerations Strong mutations since 40 years A traditional system based on the oasis model : agriculture & trans-Saharan trade 1. The research program Studied area The mutations Background Themes 2. The project of T.O. 3. Interactive cartography The stakes Sustainability

5. Hydrocarbons Agricultural mutations Water resources Urbanisation Demographic growth 1. The research program - The mutations 1. The research program Studied area The mutations Background Themes 2. The project of T.O. 3. Interactive cartography The stakes Sustainability South -Western Sahara Economic mutations Mobility and migrations New practices Vs. Traditional agriculture in oases Spatial integration Opening up the enclave Infrastructures Management Uses Conflicts Urban sprawl Urban management

6. Environment protection Economical fairness Palm grove preservation Management of water resources Social fairness Pollutions 1. The research program - The stakes 1. The research program Studied area The mutations Background Themes 2. The project of T.O. 3. Interactive cartography The stakes Sustainability Saharan territories Infrastructures The networks Housing www.elwatan.com Work

8. An international research program between a French team (ThéMA) and an Algerian research team (CRASC-Oran) 4 years (2007-2010) The main objectives : - Identifying, analyzing and evaluating the recent territorial mutations of the South-Western Sahara in Algeria - Proposing a synthesis of those evolutions - Developing the interactions with the local actors - Developing a modeling and instrumented approach to propose some elements able to participate in the territorial management process 10 researchers in Geography, Architecture & Urbanism 1. The research program - Background 1. The research program Studied area The mutations Background Themes 2. The project of T.O. 3. Interactive cartography The stakes Sustainability

9. The 4 main themes of the researches 1. The research program - Themes 1. The research program Studied area The mutations Background Themes 2. The project of T.O. 3. Interactive cartography The stakes Sustainability Landscape and environment Work, mobility and networks Relationship between urban and rural spaces Creation of a territorial observatory A multi-thematic approach

10. Multi-actors process Project of a territorial observatory - OTSA 2. The project T.O. - Objectives 1. The research program 2. The project of T.O. 3. Interactive cartography Objectives Structure Actors of the scientific research Local actors of landplaning 2. (In the future) To propose some elements about the regional and local landplanning 1. Assembling the scientific researches and participate to increase them Increasing knowledge about territorial structure and dynamics

11. 2. The project T.O. - Objectives 1. The research program 2. The project of T.O. 3. Interactive cartography Objectives Structure

13. 3. Interactive cartography - Typology Source : J.-P. Antoni et al . 2004 Typology The data 1. The research program 2. The project of T.O. 3. Interactive cartography The tool

14. 3. Interactive cartography – The data Data & thematic fields already included: Macro-regional: Sahara Wilayas and municipalities Typology The data 1. The research program 2. The project of T.O. 3. Interactive cartography The tool Networks : Hydrographic, Road Raster : MNT Contextual data Administrative status and limits Demographic data Migrations data Employment data Education data Thematic data Spatial scales

15. Framework MapServer is an Open Source development environment for building spatially-enabled internet applications Layers Navigation tools and interrogation of data Spatial queries 3. Interactive cartography – The tool Dynamic zoom and spatial scales v Interactive navigation Geo-visualization Caption of the map Tools to print and save the map Typology The data 1. The research program 2. The project of T.O. 3. Interactive cartography The tool PMAPPER MAPSERVER

16. Population by municipalities in 1987 Illiteracy rate by wilaya in 1998 Relief, road network and administrative status Road network and hydrography Multiscale Multi-temporal Multi-thematic Interactivity

17. Conclusion – future outlines To increase the quality and quantity of data, and the number of the thematic fields and the spatial scales To put online the tool to work more cooperatively and easily with the Algerian team To develop the other dimensions of the territorial observatory: documentation… To structure the spatial indicators by thematic in regards of the available data and the expectations of the local partners