Description : The soil covers is not sufficient to stop erosion; nor are the physical structures. The only solution is to find appropriate crops to produce enough residues to favour infiltration.

• 土表覆盖不足不能够阻止侵蚀、改变土壤结构。只有寻找合适的、能够生产足够残茬的作物，才有利于水份的渗透。