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Longman Dictionary of Contemporary English
desertification
noun
EXAMPLES FROM CORPUS
▪ Farming is leading to the desertification of large areas of the planet.
▪ If desertification continues to spread, the dust bowl will not only undermine the economy but also trigger a huge migration eastward.
▪ In many instances this is too late to obviate desertification and soil erosion.
▪ One of the first environmental hazards to be studied was that of desertification.
▪ There is considerable dissension in the literature as to what precisely constitutes desertification.
▪ There may be, too, a sottovoce challenge to the received wisdom that it is people who cause desertification.
▪ Thus we do not intend to provide evidence here of frightening rates of soil loss and desertification throughout the world.
Douglas Harper's Etymology Dictionary
desertification

1973, from desert (n.1) + -fication. In French, désertisation is attested from 1968.

Wiktionary
desertification

n. Process by which a geographic region becomes a desert. The change may result from natural changes in climate or by human activity.

WordNet
desertification

n. the gradual transformation of habitable land into desert; is usually caused by climate change or by destructive use of the land; "the dust storms in Korea are the result of rapid desertification in China"

Wikipedia
Desertification

Desertification is a type of land degradation in which a relatively dry land region becomes increasingly arid, typically losing its bodies of water as well as vegetation and wildlife. It is caused by a variety of factors, such as climate change and human activities. Desertification is a significant global ecological and environmental problem.

Usage examples of "desertification".

Forests shrank, grasslands spread, and desertification intensified once more.