Desertification: the process by which fertile land becomes desert-like, often due to drought, overgrazing, or poor land management.
過度な放牧が砂漠化を進めている地域がある。
There are regions where overgrazing is accelerating desertification.
政府は砂漠化対策として大規模な植林計画を開始した。
The government launched a large-scale afforestation plan as a measure against desertification.