Table 5.

Pearson’s correlation coefficients between enzyme activity, potential biochemical soil fertility index (M_w), substrate functional diversity (soil H′) and diversity indices calculated for the whole dataset and according to functional groups (e.g. grasses, forb species).

	Grasses				Forbs				Whole vegetation				Biomass
	H'	No	E	1-D	H'	No	E	1-D	H'	No	E	1-D
Dehydrogenase	0.073	0.105	0.097	− 0.096	0.009	0.058	0.001	− 0.012	0.077	0.129	0.048	− 0.102	0.198
Urease	− 0.215	0.130	− 0.410*	0.107	0.118	0.041	0.131	− 0.095	0.029	0.084	− 0.039	− 0.003	0.167
Acid phosphatase	− 0.391*	0.005	− 0.427*	0.042	0.267*	0.170	0.278*	− 0.284*	0.150	0.001	0.003	− 0.150	0.248
Alkaline phosphatase	− 0.145	0.282*	− 0.342*	0.032	0.463**	0.363*	0.460**	− 0.474**	0.367*	0.344*	0.278*	− 0.347*	− 0.031
Soil H'	− 0.169	− 0.113	− 0.081	− 0.179	0.062	− 0.179	0.042	− 0.061	0.079	0.049	0.045	0.104	0.119
Soil H' grasses dominated plots	0.475*	0.393*	0.424*	− 0.491**	− 0.119	0.181	− 0.411*	0.283	0.048	0.211	− 0.142	− 0.071	0.122
Soil H' forbs dominated plots	− 0.430*	− 0.535*	− 0.189	− 0.040	− 0.070	− 0.302	− 0.040	− 0.249	0.091	− 0.042	0.179	− 0.081	0.065
Mw index	0.426*	0.284	0.433*	− 0.469*	0.042	0.231	0.008	− 0.036	0.323*	0.318*	0.294*	− 0.342*	0.033

H′ Shannon–Wiener plant diversity index, No species richness, E Evenness, 1-D dominance index, soil H’ soil functional diversity.

Significant correlations (p ≤ 0.05) are marked with * or (p ≤ 0.01) with**.