N

K

Ca

Na

EC

K

−0.83ns

Ca

0.87*

−0.95*

Na

−0.92*

0.98**

−0.97**

EC

0.84ns

−0.94*

0.95*

−0.95*

pH

−0.28ns

−0.07ns

−0.36ns

0.19ns

−0.17ns