Table 2 Pearson correlation coefficients between the presented diversity measures. SR: tree species richness, H′: Shannon index, A: species profile index, CV: coefficient of variation of tree diameters

H′

0.95

A

0.91

0.95

Number of layers

0.27

0.25

0.40

CV

0.36

0.36

0.46

0.52

Skewness

0.22

0.25

0.31

0.08

0.51