Desertification - the encroachment of desert conditions on moister zones along the desert margins, where plant cover and soils are threatened by desiccation- through overuse, in part by humans and their domestic animals, and, possibly, in part because of inexorable shifts in the central government. Desertification is high in dry-land environments because of over and inappropriate use, mainly caused by human encroachment and changes in climate.
Thursday, February 25, 2010
Africa - Desertification
Desertification - the encroachment of desert conditions on moister zones along the desert margins, where plant cover and soils are threatened by desiccation- through overuse, in part by humans and their domestic animals, and, possibly, in part because of inexorable shifts in the central government. Desertification is high in dry-land environments because of over and inappropriate use, mainly caused by human encroachment and changes in climate.
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