Parameter

1970-2000

2001-2018

p:S = Significant; NS = Not Significant

Kjeldhal Dissolved

0.459 (0.171)

0.230 (0.038)

<0.0001 S

Kjeldhal Total

0.912 (0.370)

0.434 (0.069)

<0.0001 S

NH₄

0.114 (0.062)

0.058 (0.013)

0.0004 S

NO₃

1.771 (0.379)

2.021 (0.229)

0.0144 S

N-Organic

0.789 (0.363)

0.381 (0.063)

<0.0001 S

TN

2.673 (0.425)

2.440 (0.228)

0.0367 S

SRP

0.030 (0.007)

0.026 (0.005)

0.0755 NS

TDP

0.042 (0.010)

0.033 (0.006)

0.0004 S

TP

0.207 (0.085)

0.117 (0.030)

<0.0001 S