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.
沙尘暴还会使地表层土壤风蚀、沙漠化加剧，覆盖在植物叶面上厚厚的沙尘，影响正常的光合作用，造成作物减产。
Sandstorm will also make the land surface soil erosion, desertification intensifies, covered in thick dust, the foliage plant photosynthesis, affecting the normal caused by crop.
北京市永定河沙地土壤风蚀与人工植被防风阻沙效益研究。
Study on soil wind erosion and vegetation efficiency of wind and prevention sand resistance artificial vegetation at sand-land in yongding river in beijing.
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