Table 4 EBK parameters of soil properties and PXRF-quantified elements in Amarillo, Hobbs, Lubbock and Midland.

From: Spatial Variability of Soil Properties and Portable X-Ray Fluorescence-quantified Elements of typical Golf Courses Soils

Items

Semiviariogram model

Model Parameters

ME

RMSE

ASE

MSE

RMSSE

pH(Lubbock)

Power

0.010

0.373

0.398

0.022

0.956

EC(Lubbock)

Power

−0.073

256.082

263.106

−0.001

0.973

Sand(Lubbock)

Linear

0.046

13.866

14.596

0.005

0.963

Silt(Lubbock)

Linear

0.124

7.989

8.048

0.0156

0.993

Clay(Lubbock)

Linear

0.057

9.593

10.089

0.002

0.963

Zn(Lubbock)

Thin plate spline

−0.072

18.029

19.091

-0.006

0.954

K(Lubbock)

Power

−16.158

2041.92

2213.895

−0.0075

0.951

Ca(Lubbock)

Linear

52.057

7781.003

8083.221

0.001

0.970

Sr(Lubbock)

Power

4.139

76.959

79.736

0.0495

0.969

Fe (Amarillo)

Power

−54.395

2137.838

2261.37

−0.014

0.957

pH (Midland)

Power

0.0025

0.127

0.129

0.013

0.985

K (Hobbs)

Power

−22.424

908.079

914.503

−0.023

0.995

  1. Unit of every variable: EC (dS m−1), Sand (%), Silt (%), Clay (%), Zn (mg kg−1), K (%), Ca (%), Sr (mg kg−1), Fe (%).
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