discharge amount of arbor vegetation though runoff was 5.68kg/km2.a, while shrub and herbage vegetation were 3.32 kg/km2.a and 2.49 kg/km2.a, respectively. The P2O5 discharge amount of

• 乔木、灌木、草本植被类型对养分流失的影响不同：乔木的径流年均氮素损失量 5.；68kg/km2，灌木为 3