Integrated water resources management in Transboundary aquifer shared between Alegria Tunisia and Lybia

Código

I-EBHE0042

Autores

Badiaa CHELLI

Tema

WG 1.09: Effective Aquifer Governance for Agriculture

Resumo

The Northern Sahara Aquifer System (SASS) is one of the large aquifer basins in North Africa and among the most exploited in the circum?Sahara. It covers an area of more than one million km2, of which 700,000 are in Algeria, nearly 80,000 in Tunisia and 250,000 in Libya. The problem facing the three countries is to ensure maximum water withdrawals for the sustainable socio-economic development of the region concerned without risking degrading the resource. A dynamic and multidisciplinary approach for the study of low renewable resources of the shared basin promoted covering technical, scientific, socio-economic, institutional and political aspects, for common management of the water resource shared by the countries concerned. Thus, and on the basis of a situation of bilateral management of the resource through pre-existing joint commissions, the OSS generated a real basin awareness, bringing together the three countries, and supported them in: ? conducting consolidated syntheses (hydrological, hydrogeological, geological, etc.) over the entire SASS territory; ? conducting socio-economic and environmental studies which highlight the need for effective management of hydraulic resources and taking into account the multiple environmental impacts due, for example, to inappropriate agricultural practices; ? the establishment of an integrated information system common to the three countries, including the SAGESSE database (Northern Sahara Water Management Assistance System), common and accessible by each country. ? the use of Earth observation data to improve knowledge of water withdrawals from the SASS and the evolution of land use, the establishment of a virtual globe coupled with a cartographic server and the geographic information system, accessible to the general public, and enabling the location of the major operating areas of the SASS and the visualization of their main characteristics; ? the establishment of the appropriate consultation mechanism validated by the political level through a declaration signed by the ministers of water resources of the three countries