The main way of soil erosion are wind erosion and water erosion, which have been studied for long time and primary understood the process.

土壤侵蚀的主要方式是风蚀和水蚀，对其研究历史较长，已经有了初步的认识。

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The soil straw cover of farmland is a main method to prevent the soil and water erosion, it is very important to research the relation between the straw cover and the wind erosion.

农田地表秸秆覆盖是防止水土流失的一项主要措施，研究秸秆覆盖度与土壤风蚀、水蚀的定量关系对农田采取合理的覆盖形式有重要的指导意义。

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It is shown that the main types of soil erosion are water erosion, wind erosion and frozen erosion in China.

研究结果表明：我国的土壤侵蚀以水力侵蚀为主，其次为风力侵蚀和冻融侵蚀。

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Plantings in the wetlands help hold down the soil against the forces of erosion, like wind and water.

VOA: special.2009.10.06

Mangrove forests protect land against erosion from wind, water and storms.

VOA: special.2010.04.20