Table 2 Pearson’s correlation between STN and OC and some soil properties.

From: Prediction of soil organic carbon and total nitrogen affected by mine using Vis–NIR spectroscopy coupled with machine learning algorithms in calcareous soils

 

pH

EC

BD

Sand

Clay

Silt

CaCO3

%SOM

SOC

TN

pH

1.00

         

EC

 − 0.02

1.00

        

BD

0.00

0.05

1.00

       

Sand

0.16

 − 0.14

0.38*

1.00

      

Clay

0.02

0.12

 − 0.21

 − 0.70*

1.00

     

Silt

 − 0.23

0.10

 − 0.08

 − 0.83*

0.18

1.00

    

CaCO3

 − 0.02

 − 0.01

0.09

0.09

0.01

 − 0.14

1.00

   

%SOM

0.07

0.07

0.30*

0.06

0.35*

 − 0.19

0.37*

1.00

  

SOC

0.09

0.06

0.30*

0.02

0.38*

 − 0.17

0.06

0.98*

1.00

 

TN

0.27*

0.03

0.27*

 − 0.02

0.31*

 − 0.14

 − 0.09

0.68*

0.68*

1.00

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