though sediment was 2.69 kg/km2.a, while shrub and herbage vegetation were 1.18 kg/km2 and 7.51 kg/km2.a, respectively. The P2O5 discharge amount of arbor vegetation though sediment

• 乔木的侵蚀泥沙年均氮素损失量为 2.；69 kg/km2，灌木为 1