Desertification ~. What is desertification?. "Desertification" is the process whereby productive land becomes so seriously eroded that any remaining soil loses nutrients essential to plant growth. The natural causes are manifold: drought, higher temperatures, lower water tables, and
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Swaziland: soil erosion causes ravines.(IDRC Photo: N. McKee)
The plants’ roots slow the movement
of the sand. (IDRC Photo: D. Anton)
Burkina Faso: dry, degraded soil.(IDRC Photo: S. Colvey)