Variables SAR coefficient Standard coefficient Standard error t p
Mszanka stream
Intercept 3.462 - 3.345 2.23 2.50
N-NO3- -0.853 0.823 0.83 -4.06 0.030*
N-NO2- -2.503 -0.367 1.34 -8.25 0.932
N-NH4+ 0.09 0.077 0.02 0.36 0.582
P-PO43- -0.43 1.14 1.67 3.97 0.342
TSS -0.324 0.034 0.01 0.03 0.024*
Smugawka stream
Intercept 2.403 2.44 1.500 1.417
N-NO3- 1.934 - 1.043 1.438 1.507
N-NO2- -0.143 0.803 0.183 -2.067 0.487
N-NH4+ 2.923 -0.367 0.43 -8.046 0.062
P-PO43- 0.081 0.042 0.01 1.366 0.043*
TSS -0.443 1.113 1.436 3.976 0.332