单词	desertification
释义	desertification /dɛˌzəːtɪfɪˈkeɪʃ(ə)n / noun [mass noun] The process by which fertile land becomes desert, typically as a result of drought, deforestation, or inappropriate agriculture: nearly one fifth of the world’s land is threatened with desertification... The problems are global - poverty, air and water pollution, deforestation, desertification, overfishing, climate change - no country can confront these challenges alone. Threatened by erosion, desertification, overgrazing and global warming, cedar forests in the Moroccan Middle Atlas Mountains are going through a hard time. Mozambique has experienced recurrent drought, flooding, cyclones, water pollution, and desertification (the process by which land loses its nutrients and becomes desert).
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