'desertification'是英语单词，翻译为“沙漠化”。它是指大面积土地逐渐失去水分、植被和生物多样性，最终变成类似沙漠的土地现象。
例句：
1. The effects of desertification are devastating to both the environment and the communities that rely on it.（沙漠化对环境和依赖环境的社区都造成了毁灭性的影响。）
2. The Sahel region in Africa has been heavily affected by desertification over the past few decades.（过去几xx年，非洲的撒哈拉地区受到了沙漠化的严重影响。）
3. Desertification is often caused by the overuse of land and poor land management practices.（沙漠化通常是由土地过度利用和不良土地管理实践造成的。）
4. The United Nations has launched several initiatives to combat desertification around the world.（联合国已经推出了几项举措来对抗全球的沙漠化现象。）
5. Many countries in the Middle East and North Africa are facing severe desertification problems.（中东和北非许多国家都面临着严重的沙漠化问题。）
6. The loss of vegetation due to desertification can result in soil erosion and reduced water quality.（由于沙漠化导致植被减少可能会导致土壤侵蚀和水质下降。）
7. Desertification can also lead to a decline in biodiversity and the extinction of species.（沙漠化还可能导致生物多样性下降和物种灭绝。）
8. Sustainable land management practices can help prevent and reverse desertification.（可持续的土地管理实践可以帮助预防和逆转沙漠化现象。）
9. Farmers in arid regions are particularly vulnerable to the effects of desertification on their crops and livelihoods.（干旱地区的农民特别容易受到沙漠化对他们作物和生计的影响。）
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