RAMR2D network scholarship holders

RAMR2D > Scholars > BOUBE DOBI Farida

Affiliated CEAs :

  • Center d'Excellence Africain-Mines et Environnement Minier (CEA-MEM), Yamoussoukro/Côte d'Ivoire. 
  • Center d'Excellence Africain-Environnement Minier, Niamey/Niger.
RAMR2D > Scholars > BOUBE DOBI Farida

Modeling the evolution of groundwater resources in a mining environment: the case of the Tim Mersoï basin (Northern Niger)

Summary of scientific project:
Groundwater, often referred to as "blue gold", is the largest reservoir of freshwater available to mankind. Around 97% of the Earth's ready-to-use freshwater comes from underground aquifers, making groundwater a public good for an obvious reason: it's our collective lifeline. Groundwater is a crucial aspect of the water cycle and a vital resource for sustaining agricultural, industrial and domestic activities around the world (Chen et al., 2016). 

In Niger, as in other sub-Saharan African countries, the issue of water availability and accessibility, in sufficient quality and quantity, remains a key issue for sustainable development (Boko et al., 2017).

In semi-arid and arid zones where surface water resources are scarce and unreliable, groundwater is considered the only plausible source of fresh water. This leads to overexploitation of these resources, most of which are fossil because they are non-renewable (Zaki et al., 2018). In the face of climate change, population growth and its corollary increase in water demand, sustainable and efficient management and use of these resources is becoming a necessity.

Le nord du Niger est un exemple typique de zone semi-aride. En effet, cette région, caractérisée par un climat aride avec de faibles précipitations (<200 mm/an), recèle d’importantes réserves d’eaux souterraines. Elle est également célèbre pour son important potentiel uranifère. Les eaux souterraines sont fortement sollicitées depuis plus d’une cinquantaine d’années, tant pour l’approvisionnement des populations que pour le besoin des sociétés minières. Les prélèvements d’eau pour la consommation humaine (l’agriculture et l’élevage) mais surtout le besoin des sociétés minières entraînent une surexploitation des nappes pouvant impacter la disponibilité de la ressource.

This work is part of a resource assessment approach aimed at sustainable and rational management of the area's groundwater resources. The aim is to gain a better understanding of the groundwater resource in the Tim Mersoï basin and the impact of anthropogenic pressure on its evolution.

Integration of the thesis project into the local, regional and international scientific community :
Locally, this thesis represents the very first attempt at regional-scale modeling in the study area, with regard to the development of a tool for predicting groundwater evolution in a mining environment and for the sustainable management of these resources. In particular, the quantification of groundwater resources.

This thesis will therefore be a first step towards a better understanding of Niger's groundwater potential, a highly important theme in scientific research and government programs for sustainable environmental management.
On a regional and international level, the methodological approach developed calls for a technology transfer that could contribute to scientific innovation in West Africa and increased scientific production with researchers from elsewhere.