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Fig. 4 | Annals of Forest Science

Fig. 4

From: Morphological variation of fine root systems and leaves in primary and secondary tropical forests of Hainan Island, China

Fig. 4

Least-squares means (points) and 95% confidence intervals (vertical bars) for four morphological root traits. Average root-system diameter (a), specific root length (SRL) (b), root tissue density (RTD) (c), and root branching intensity (RBI) (d) by forest type and plant family using data from 423 individuals from 72 species sampled along a 6.6-km gradient from secondary to primary forest. The colored bars are predicted values by family (refer to legend of Fig. 3), and the black bars are predicted values with respect to forest type. Letters denote the statistical groupings by forest type of a post-hoc Tukey HSD tests

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