Table 5 Correlation and path analysis between IFI and soil properties in NX and SX from 1985 to 2020.

From: The difference in cultivated land soil quality: a comparison between the north and south sides of the Tianshan Mountains

Soil property

NX

SX

Correlation coefficient

Direct path coefficient

Correlation coefficient

Direct path coefficient

SOM (g∙kg−1)

0.691**

0.126**

0.518**

− 0.050**

TN (g∙kg−1)

0.739**

0.070**

0.968**

0.887**

pH

− 0.970**

− 0.824**

0.635**

− 0.121**

AP (mg∙kg−1)

0.641**

0.001

0.604**

0.067**

AK (mg∙kg−1)

0.457**

0.041**

− 0.331**

-0.007

  1. The superscript **after each index indicated that the difference was extremely significant (P < 0.01).
Back to article page