was1.51 kg/km2.a, while shrub and herbage vegetation were 0.54 kg/km2.a and 2.78 kg/km2.a, respectively. 2. The nutrition recycling velocity of arbor, shrub, herbage vegetation which beyond the surface

• 乔木的侵蚀泥沙年均磷素损失量为 1.；51 kg/km2，灌木为 0