Table 6 Correlation coefficients between heavy metal element concentrations and etching information.

From: Remote sensing inversion on heavy metal content in salinized soil of Yellow River Delta based on Random Forest Regression—a case study of Gudao Town

 

Mn

Ni

As

Cu

Zn

Pb

Cr

–OH and CO32− alteration

0.022

0.047

0.048

0.011

0.050

0.050

− 0.007

Iron-stained alteration

− 0.264

− 0.199

0.032

− 0.088

− 0.251

0.033

0.010

  1. Significant values are in bold.
  2. *Significant correlation; **extremely significant correlation.
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