土地退化和荒漠化可通过复杂的途径影响人类健康。
Land degradation and desertification can affect human health through complex pathways.
通过稳定土壤，减少水蚀和风蚀并维持土壤养分循环，林木覆盖能够防止土地退化和荒漠化。
Forests and tree cover combat land degradation and desertification by stabilizing soils, reducing water and wind erosion and maintaining nutrient cycling in soils.
值此防治荒漠化和干旱世界日，让我们重申对防治荒漠化和土地退化以及减少干旱影响的承诺；我们应当认识到，改善土壤，就是改善我们的生活。
On this Day, let us reaffirm our commitment to combating desertification and land degradation and mitigating the effects of drought; and let us recognize that enhancing soils enhances life.
盐渍化是荒漠化和土地退化的主要类型之一。
The salinization is one of the main types desertificated and the land degradation.
也许第二重要的问题是荒漠化和土地退化，这主要是由于牧场和农田的过度利用造成的。
Maybe the second important problem would be desertification and degradation of land mostly due to overuse of pastures and other agricultural land.
也许第二重要的问题是荒漠化和土地退化，这主要是由于牧场和农田的过度利用造成的。
Maybe the second important problem would be desertification and degradation of land mostly due to overuse of pastures and other agricultural land.
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