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The borders of the Sahel

Elaboration based on the definitions of the authors

The Sahel core

The liminal Sahel and the buffer zone

The breath of the Sahel

The study area

Defined at North of the isohyeta 150 mm/y (2015-19) and South of the isohyeta 850 mm/y (1981-85), reported at WWF Level 8 hydrographic limits

Political Sahel

The weight of borders

Hydrographic Sahel

Hydrographic Sahel

Land Productivity Dynamics

LPD Sahel – Source; Joint Research Centre