以皇竹草作为生物篱植物，探讨了其在陡坡地的生长状况和水土保持效益。结果表明：皇竹草茎叶鲜生物量259.2t/hm^2，年产干草51.2t/hm^2，根系的84.96%集中分布于0－30cm土层内，根系密度48.6条／100cm^2，可有效减小土壤容量，增加土壤孔隙度，提高土壤贮水量，固持土壤，是优良的水土保持植物。

This study chose the Hybrid giant Napier as the hedgerow plant, discussed the growing properties and the benefits of soil and water conservation on the abrupt slope land. The results showed that Hybrid giant Napier could decrease the soil unit weight, increase the soil porosity,enhance the soil water holding capacity and protect the soil. The biomass of stem and leave was 259.2 t/hm 2, and 51.2 t/hm 2 dry grass was producted. The root system mainly distributed in the soil layer from 0 cm to 30 cm accounted for 84.96%. The density of roots was 48.6 roots per 100 cm 2 . Therefore, Hybrid giant Napier is the excellent plant species for soil and water conservation.