祁连山狼毒（Stellera chamaejasme）叶片生态化学计量特征对海拔的响应

苏昊海, 张小芳, 牛亚琳, 王海茹, 曹建军

Effects of altitude on leaf ecological stoichiometry of Stellera chamaejasme in the Qilian Mountains

Haohai Su, Xiaofang Zhang, Yalin Niu, Hairu Wang, Jianjun Cao

表3 环境因子与两轴的关系及影响狼毒叶片生态化学计量的主导环境因子

Table 3 Relationship between environmental factors and two axes and dominant environmental factors affecting leaf ecological stoichiometry of Stellera chamaejasme

环境因子 轴1 轴2 R2 P* 解释度/% F P** SOC 0.491 -0.871 0.09 0.008 1.5 2.5 0.141 STN -0.269 -0.963 0.05 0.069 1.7 3.1 0.108 STP 0.994 -0.107 0.08 0.009 0.5 0.9 0.511 SOC∶STN 0.77 -0.638 0.25 0.001 7.9 12.4 0.006 SOC∶STP -0.213 -0.977 0.09 0.005 1.5 2.8 0.099 STN∶STP -0.881 -0.474 0.12 0.001 0.2 0.4 0.910 MAT/℃ 0.984 0.176 0.57 0.001 27.2 38.5 0.006 MAP/mm -0.987 0.176 0.57 0.001 5.6 9.5 0.006 pH值 -0.421 0.907 0.04 0.092 0.7 1.2 0.474