Variable

Method

Variogram

Model

Nugget

Range

Partial sill

Sill

Nugget/sill (%)

SOC %

Topsoil

Ordinary Kriging

Semivariogram

Exponential

0.002

0.036

0.044

0.046

4.3

Ordinary Kriging

Semivariogram

Spherical

0.02

0.036

0.02

0.04

50

Subsoil

Ordinary Kriging

Semivariogram

Exponential

0.014

0.071

0.067

0.081

17.2

Ordinary Kriging

Semivariogram

Spherical

0.026

0.062

0.051

0.077

33.7

SOC kg/m2

Topsoil

Ordinary Kriging

Semivariogram

Exponential

0.0

0.036

0.508

0.508

0.0

Ordinary Kriging

Semivariogram

Spherical

0.205

0.036

0.282

0.487

42

Subsoil

Ordinary Kriging

Semivariogram

Exponential

0.1899

0.086

3.97

4.1599

4.5

Ordinary Kriging

Semivariogram

Spherical

0.655

0.062

3.099

3.754

17.0

OC-SOC

Topsoil

Ordinary Cokriging

Semivariogram; Semivariogram

Exponential

0.0

0.0365

0.0475; 0.0930; 0.0930; 0.5085

-

-

Ordinary Cokriging

Semivariogram; Semivariogram

Spherical

0.001; 0.0031

0.0365

0.0468; 0.0849; 0.0849; 0.5098

-

-

Subsoil

Ordinary Cokriging

Semivariogram; Semivariogram

Exponential

0.0

0.07

0.0916; 0.2350; 0.2350; 3.9105

-

-

Ordinary Cokriging

Semivariogram; Semivariogram

Spherical

0.0208; 0.5841

0.0573

0.0625; 0.2859; 0.2859; 3.0605

-

-