. 2016 Jun 15;6:27756. doi: 10.1038/srep27756

Table 1. Soil chemical analyses performed on the rhizosphere (R) and bulk soil (BS) samples collected below the beech (B) and Norway spruce (NW) stands.

Origin	pH	C	N	C/N	K	Ca	Fe	Mg	Mn	Na	H⁺	Al³⁺	EA^a	CEC^b
Origin	pH	g/kg		C/N	Cmolc/kg
NW-R	3.61^a	99.71^a	5.16^a	19.15^a	0.54^a,^b	0.48^a	0.86^a	0.37^a	0.08^a	0.24^a	1.62^a	12.42^a	14.03^a	16.52^a
NW-BS	3.97^b	68.47^a	3.77^a	18.06^a	0.22^c	0.59^a	0.33^b	0.32^a	0.08^a	0.56^a	0.42^b	12.29^a	12.71^a	14.74^a
B-R	3.86^b	83.28^a	4.48^a	18.06^a	0.57^a	0.56^a	0.44^b	0.33^a	0.11^a	0.27^a	1.22^a,^b	11.32^a	12.53^a	14.70^a
B-BS	3.86^b	72.35^a	3.84^a	18.84^a	0.35^b,^c	0.57^a	0.38^b	0.27^a	0.09^a	0.22^a	0.96^a,^b	12.93^a	13.89^a	15.72^a

Different letters between terraces (a or b) indicate significant differences, according to a one-factor ANOVA and a Bonferronie-Dunn test (p < 0.05).

^aEA: Exchangeable acidity.

^bCEC: Cationic exchange capacity.