The result shows that Achnatherum splendens can improve such soil features and increase the degree of land coverage, so it can be widely used for soil and water conservation purpose in Loess Plateau.

• 结果表明：芨芨草能明显提高土壤的抗冲性、渗透性及土壤的抗剪强度，并能增加地表的覆盖度。芨芨草在黄土高原地区的水土保持工作中有着广阔的应用前景。