Table 3.

Correlation between species diversity and edaphic variables. Significant values in bold.

Variable	Species richness	Species cover m–100 m−1	Conc. of dominance (C)	Relative evenness (Ĥ)
Diversity indices
Species richness spp/stand	1.00
Species. cover m/100 m	−0.27⁎	1.00
Conc. of dominance (C)	−0.02	−0.02	1.00
Relative evenness (Ĥ)	0.40⁎⁎	−0.03	−0.52⁎⁎	1.00
Soil
pH	0.15	0.35⁎	−0.27	0.47⁎⁎
EC (mS/cm)	−0.32⁎	−0.01	−0.14	0.31⁎
Bulk soil (%)
Org. matter	0.41⁎⁎	−0.45⁎⁎	−0.22	0.16
Sand	−0.39⁎⁎	0.59⁎⁎⁎	0.04	0.04
Clay	0.67⁎⁎⁎	−0.42⁎⁎	−0.32⁎	0.45⁎⁎
Silt	0.23	−0.52⁎⁎	0.05	−0.18
Mineral soil (ppm)
Ca	0.08	0.14	−0.07	0.13
Fe	0.28⁎	0.07	0.08	−0.13
K	0.10	−0.41⁎⁎	−0.09	0.13
Mg	−0.20	−0.25	0.39⁎⁎	−0.56⁎⁎⁎
Na	0.18	−0.30⁎	0.55⁎⁎	−0.47⁎⁎
P	0.15	−0.22	0.29⁎	−0.27
N	−0.10	0.07	0.17	−0.35⁎

^⁎p ⩽ 0.05.

^⁎⁎p ⩽ 0.01.

^⁎⁎⁎p ⩽ 0.001.