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
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