Land degradation and desertification can affect human health through complex pathways.

土地退化和荒漠化可通过复杂的途径影响人类健康。

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Forests and tree cover combat land degradation and desertification by stabilizing soils, reducing water and wind erosion and maintaining nutrient cycling in soils.

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。

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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.

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。

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Canada's withdrawal comes ahead of a major convention in Bonn, Germany, "to carry out the first ever comprehensive cost-benefit analysis of desertification, land degradation and drought", the UN Environment Programme said.

BBC: Canada 'only nation to leave UN drought agreement'

Due to the consequences of the environmental crisis in Aral Sea region such as poor soil conditions, intensive desertification and land degradation, the farmers and dehkhans often face a plenty of problems.

UNESCO: OFFICE IN TASHKENT