TABLE 1.
Stable isotope release (15NH4Cl) and discharge conditions during the enrichment period at five sampling reaches in the Boye (BY), Schwarzbach (SB) and Rotbach (RB). Mean values were calculated from up to 6 weekly measurements within the enrichment period (42 days).
| Site | 15NH4Cl (g) | Mean discharge (±SD) (L s−1) | Mean dilution (mg/L s−1) | Enrichment period |
|---|---|---|---|---|
| BY22 | 20 | 650 ± 324 | 31 | 03/31/2022–05/12/2022 |
| RB21 | 20 | 415 ± 349 | 48 | 05/11/2021–06/21/2021 |
| RB22 | 20 | 433 ± 146 | 46 | 03/29/2022–05/10/2022 |
| RBA3 | 30 | 1841 ± 855 | 16 | 03/29/2022–05/10/2022 |
| SB21 | 40 | 300 ± 143 | 133 | 08/17/2021–09/28/2021 |