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English definition of “desertification”

desertification

noun [U]     /dɪˌzɜːtɪfɪˈkeɪʃən/
ENVIRONMENT the process by which land changes into desert, for example because there has been too much farming activity on it or because a lot of trees have been cut down: Trees help to prevent desertification, as well as providing shade and firewood.
(Definition of desertification noun from the Cambridge Business English Dictionary © Cambridge University Press)
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