The content of total N,NH + 4 N and NO - 3 N varied widely with different organs because of the effects of soil water,nutrient content, atmospheric temperature,vegetable feature and selective absorption to nitrogen,etc.

• 受土壤水分、养分、气温和植物本身特点及其对N素选择吸收作用等多种因素影响 ,小叶樟、毛果苔草和漂筏苔草 3种植物不同器官中‘三氮’含量变化较大 ,NO-3 N比NH+4 N含量稳定且NH+4 N/NO-3 N >1;