Table 8 Principal component analysis of soil parameters.

From: Assessing the influence of changes in land use-land cover on soil properties of degraded sodic lands in Indo-Gangetic plains

Parameters

PC1

PC2

PC3

Sand

− 0.315

− 0.596

− 0.719

Silt

0.453

− 0.114

0.842

Clay

0.046

0.952

0.278

BD

− 0.896

− 0.036

− 0.257

Porosity

0.524

− 0.045

0.819

WHC

0.837

− 0.344

0.363

IR

0.887

− 0.231

0.35

Av N

0.937

− 0.225

0.259

Av P

0.439

− 0.38

0.807

Av K

0.77

− 0.163

0.604

Ca + Mg

0.62

− 0.128

0.756

K

0.083

− 0.802

0.532

Na

− 0.751

0.547

− 0.344

Cl

− 0.274

0.276

− 0.842

CO3

− 0.654

0.215

− 0.484

HCO3

− 0.501

0.797

− 0.195

pH

− 0.085

0.947

− 0.287

EC

− 0.437

0.881

− 0.137

ESP

− 0.419

0.883

− 0.185

OC

0.863

− 0.163

0.448

Eigen values

13.188

4.244

1.465

Variance (%)

65.941

21.219

7.325

Cumulative variance (%)

65.941

87.161

94.485

  1. BD bulk density, WHC water holding capacity, IR infiltration rate, pH2 and EC2 refers to soil: water suspension ratio of 1:2, ESP exchangeable sodium percentage, OC organic carbon.