desertization

例句：

1. 1.The region has been suffering from severe desertification for decades.
   该地区几十年来一直遭受严重的沙漠化。
2. 2. The government is working hard to prevent desertification and restore the land's fertility.
   政府正努力防止沙漠化，恢复土地的肥沃。
3. 3.The desertification process is a complex one, involving various factors such as climate change and human activities.
   沙漠化过程是一个复杂的过程，涉及各种因素，如气候变化和人类活动。