Addressing the Relationship between Leaf Nitrogen and Carbon Isotope Discrimination from the Three Levels of Community, Population and Individual.

sargentii lacked a correlation between A and g s ( Figure 8 d, p > 0.05), while the other five species all showed a highly significant positive relationship ( Figure 8 a–c,e,f; R 2 = 0.85, p < 0.001 for S. oblate ; R 2 = 0.95, p < 0.001 for H. dulcis ; R 2 = 0.93, p < 0.001 for A. chinensis ; R 2 = 0.54, p < 0.01 for V. rhytidophyllum ; R 2 = 0.73, p < 0.001 for C. trichotomum ).

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