农田

(mg∙L−1)

N O 3 - N

(mg∙L−1)

N O 2 - N

(mg∙L−1)

TN

(mg∙L−1)

TP

(mg∙L−1)

F ¯

2014

1.22 ± 0.26a

0.55 ± 0.31a

0.002 ± 0.001a

1.80 ± 0.44a

0.023 ± 0.008A

8.00

2015

5.54 ± 1.45b

1.50 ± 0.14b

0.042 ± 0.016b

6.82 ± 1.59b

0.028 ± 0.003A

8.12