GPP

NPP

CR

${\text{NO}}_3^{-}$

${\text{PO}}_4^{3-}$

NPP

0.883**

CR

0.057

−0.214

${\text{NO}}_3^{-}$

0.349

0.250

0.226

${\text{PO}}_4^{3-}$

0.400*

0.216

0.084

0.111

${\text{SO}}_4^{2-}$

0.418*

0.189

0.500**

0.212

0.526**

Temp

0.379*

0.375*

-0.129

0.100

0.144