wind erosion and water erosion

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。

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。

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。