This study Examines the Water, Energy, Food and Ecosystem (WEFE) nexus assessment in the Niger Delta basin of Nigeria. One major component of the Niger Delta basin is that it has been a constant receptor of the unrelenting pressure and assault in the ecosystem and this has adversely affected the living condition of the people.

The study area covered the Niger River Basin (NRB) in the northern part of Nigeria. The basin has an area of approximately 2.3 million sq km spreading over 10 countries. The Basin has its largest part in Mali, Niger and Nigeria, each covering about 25% of the total basin area with approximately 100 million people earning livelihood  mainly  on the traditional, low input,  rainfed farming, nomadic animal rearing and  small scale irrigated agriculture.

Document published in 2011 by OSS (Sahel and Sahara Observatory), focused on the design and implementation of a hydrogeological model of the Iullemeden Aquifer System. The aquifer, extending through Mali, Niger and Nigeria, is one of the two outmost important groundwater systems in the Niger basin, with groundwater flowing mainly from north to the south.