Table 1.

Mineral concentrations in homogeneous and heterogeneous environments and in the different patches of the heterogeneous environments (mg L⁻¹)

	Homogeneous	Heterogeneous
	Total	Total	Potting	Shallow	Stony	Serpentine	Sandy	Anthropic
N	76·9	40·5	76·9	7·7	57·7	0·96	5·8	57·7
P	134·6	57·4	134·6	13·5	115·4	0·76	0·96	1·9
K	230·8	100	230·8	19·2	192·3	19·2	7·7	0·2
Mg	5·8	4279	5·8	0·38	3·8	29000	903·8	38·5
Fe	13·5	26005	13·5	1·3	11·5	136000	–	46000
Ni	–	157·5	–	–	–	1038·5	–	63·7
Cr	–	733·5	–	–	–	5000	–	134·6

nd, Not determined.