Table 2. Wilcoxon signed ranks test results of NH3-N:TN and TN:TP ratio between every two sites.
| Test on difference between NH3-N:TN |
Test on difference between TN:TP |
|||
|---|---|---|---|---|
| Site 3** | Site 4** | Site 3** | Site 4** | |
| Site 1* | lower than site 1 (P: 0.011) | lower than site 1 (P: 0.075) | higher than site 1 (P: 0.005) | higher than site 1 (P: 0.047) |
| Site 2* | lower than site 2 (P: 0.004) | no significant difference | higher than site 2 (P: 0.017) | no significant difference |
| Site 5* | lower than site 5 (P: 0.033) | lower than site 5 (P: 0.023) | higher than site 5 (P: 0.050) | higher than site 5 (P: 0.005) |
| Site 6* | higher than site 6 (P: 0.007) | higher than site 6 (P: 0.003) | no significant difference | lower than site 6 (P: 0.007) |
*: site with two-week delay of MC release; **: site with one-week delay of MC release.