Annals of Forest Science

Table 2 Parameters of the spherical semivariogram models of soil properties

From: Tree patch distribution drives spatial heterogeneity of soil traits in cork oak woodlands

	0–20 cm				20–100 cm
	Range (m)	Sill (C + Co)	Nugget (Co)	C / (C + Co)	Range (m)	Sill (C + Co)	Nugget (Co)	C / (C + Co)
% sand	50	0.0278	0.0230	0.17	40	0.0277	0.0049	0.82
% silt	Nugget model [C / (C + Co)] = 0				40	0.1910	0.1683	0.12
% clay	52	0.1788	0.1233	0.31	95	0.1363	0.0731	0.46
pH	40	0.4696	0.1733	0.63	115	0.5767	0.2558	0.56
% SOM	120	0.1666	0.0418	0.75	115	0.0924	0.0551	0.40
N	92	0.0880	0.0448	0.49	100	0.1174	0.0984	0.16
P	51	0.4450	0.2227	0.50	74	0.0964	0.0863	0.10
CEC	53	0.3093	0.2439	0.21	63	0.2202	0.0280	0.87
K	Nugget model [C / (C + Co)] = 0				Nugget model [C / (C + Co)] = 0
Ca	90	0.9720	0.2730	0.72	85	0.7144	0.0838	0.88
Mg	41	0.1338	0.1116	0.17	40	0.2159	0.1537	0.29
Na	114	0.1409	0.0994	0.29	35	0.2774	0.1793	0.35

SOM soil organic matter, CEC cation exchange capacity

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ISSN: 1297-966X

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