Table 1.

Average values (± standard deviation) of the main physico-chemical soil properties in relation to soil depth layers of the three points sampled in 2014 up to 100 cm depth (see Figure 1 ).

soil depth	sand	silt	clay	CEC	pH	SOC	Ntot	S	Ca	Fe	Mg	K
	(%)	(%)	(%)	(meq 100g-1)		(g Kg-1)	(g Kg-1)	(g Kg-1)	(g Kg-1)	(g Kg-1)	(g Kg-1)	(g Kg-1)
0-10	57.00 ± 10.34	35.60 ± 9.70	7.38 ± 0.99	24.63 ± 1.94	7.76 ± 0.19	20.27 ± 5.98	2.18 ± 0.32	0.38 ± 0.02	32.07 ± 7.20	28.2 ± 1.5	22.93 ± 3.04	11.40 ± 0.53
10-20	55.34 ± 9.91	35.00 ± 8.65	9.63 ± 1.44	23.63 ± 1.19	7.59 ± 0.08	13.73 ± 8.95	1.53 ± 0.17	0.28 ± 0.04	28.73 ± 5.25	25.87 ± 4.16	21.43 ± 4.97	10.16 ± 1.67
20-30	52.17 ± 12.76	38.34 ± 12.95	9.52 ± 0.86	22.67 ± 1.17	7.80 ± 0.26	14.67 ± 7.68	1.42 ± 0.30	0.29 ± 0.01	31.63 ± 5.76	28.87 ± 2.87	22.77 ± 3.18	9.78 ± 1.67
30-40	52.60 ± 7.49	36.43 ± 6.26	10.96 ± 1.28	22.60 ± 1.39	7.76 ± 0.09	15.00 ± 6.01	1.08 ± 0.33	0.26 ± 0.04	34.53 ± 6.32	28.4 ± 2.49	26.17 ± 4.76	10.97 ± 3.02
40-60	46.60 ± 3.24	41.87 ± 4.27	11.50 ± 1.01	21.43 ± 1.36	7.79 ± 0.07	10.63 ± 5.19	0.68 ± 0.17	0.20 ± 0.02	35.50 ± 8.25	27.97 ± 1.42	26.97 ± 5.56	10.94 ± 1.94
60-80	48.52 ± 7.02	40.03 ± 5.61	11.43 ± 1.45	18.70 ± 1.31	7.86 ± 0.03	10.73 ± 7.71	0.42 ± 0.30	0.17 ± 0.03	42.77 ± 2.20	27 ± 2.17	28.33 ± 3.71	10.55 ± 1.36
80-100	43.56 ± 6.78	44.93 ± 6.66	11.47 ± 0.76	16.33 ± 1.10	7.96 ± 0.15	7.08 ± 6.13	0.25 ± 0.01	0.14 ± 0.03	49.83 ± 1.46	25.13 ± 2.68	29.80 ± 4.39	9.54 ± 0.55
ALL	50.83 ± 8.60	38.89 ± 7.67	10.27 ± 1.74	21.43 ± 3.01	7.79 ± 0.16	13.16 ± 7.02	1.08 ± 0.68	0.24 ± 0.08	36.44 ± 8.46	27.35 ± 2.56	25.49 ± 4.69	10.48 ± 1.58

CEC, cation exchange capacity; SOC, organic carbon; Ntot, total nitrogen; Stot, total sulfur; Ca, calcium; Fe, iron; Mg, magnesium; K, potassium.