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植物生态化学计量特征及其主要假说
田地1(), 严正兵2, 方精云3,**()
Review on characteristics and main hypotheses of plant ecological stoichiometry
TIAN Di1(), YAN Zheng-Bing2, FANG Jing-Yun3,**()

图6. 叶片N-P幂函数关系在全球尺度、站点尺度和施肥控制实验的规律。A, 改自Tian等(2018b), 说明叶片N-P幂函数关系在站点尺度存在很大变异。B, C, 改自Yan等(2018), 说明拟南芥叶片N-P幂函数关系受到N或P添加的影响。

Fig. 6. Leaf N-P scaling relationship at global level, site level and nutrient fertilization experimental level. A, Replotted based on Tian et al. (2018b), showing the significant variation of leaf N-P scaling relationship at site levels. B, C, Replotted based on Yan et al. (2018), indicating the effects of N and P fertilizations on leaf N-P scaling relationship of Arabidopsis thaliana.