Table 1. Location and the pH, TDS, and HCO3− concentration of river water at different sampling sites in the Jiulongjiang River.
(T) indicates the site located in tributary of the Beixi River.
| Sampling site | Longitude | Latitude | Altitude | pH | TDS (mg/L) |
HCO3− (mg/L) |
|---|---|---|---|---|---|---|
| Beixi River | ||||||
| 1 | 116.96°E | 25.39°N | 384 m | 7.58 | 27.1 | 7.50 |
| 2 | 117.06°E | 25.41°N | 282 m | 6.94 | 32.8 | 7.87 |
| 3 | 117.28°E | 25.36°N | 206 m | 6.72 | 43.4 | 11.5 |
| 4(T) | 117.27°E | 25.32°N | 197 m | 7.03 | 229 | 32.9 |
| 5 | 117.33°E | 25.33°N | 173 m | 6.96 | 118 | 21.1 |
| 6(T) | 117.36°E | 25.38°N | 182 m | 7.30 | 54.7 | 22.5 |
| 7(T) | 117.40°E | 25.38°N | 174 m | 7.91 | 93.4 | 39.4 |
| 8(T) | 117.37°E | 25.35°N | 162 m | 7.65 | 86.9 | 36.6 |
| 9 | 117.37°E | 25.32°N | 172 m | 7.10 | 96.1 | 26.0 |
| 10 | 117.44°E | 25.28°N | 159 m | 7.13 | 121 | 23.8 |
| 11(T) | 117.54°E | 25.34°N | 177 m | 7.53 | 76.1 | 38.1 |
| 12 | 117.53°E | 25.21°N | 143 m | 7.09 | 99.7 | 22.5 |
| 13 | 117.5°E | 25.14°N | 153 m | 7.35 | 43.6 | 11.9 |
| 14 | 117.55°E | 25.10°N | 109 m | 6.90 | 90.9 | 17.9 |
| 15 | 117.52°E | 25.01°N | 89 m | 7.31 | 95.4 | 21.8 |
| 16 | 117.52°E | 24.99°N | 83 m | 7.60 | 59.8 | 15.0 |
| 17 | 117.55°E | 24.92°N | 35 m | 7.20 | 91.2 | 20.1 |
| 18 | 117.60°E | 24.81°N | 27 m | 7.16 | 87.3 | 19.2 |
| 19 | 117.60°E | 24.74°N | 16 m | 7.15 | 87.0 | 17.9 |
| 20 | 117.63°E | 24.66°N | 8 m | 7.07 | 88.1 | 17.9 |
| 21(T) | 117.76°E | 24.63°N | 13 m | 7.58 | 77.5 | 20.7 |
| Xixi River | ||||||
| 24 | 117.23°E | 24.66°N | 136 m | 7.18 | 52.1 | 15.0 |
| 25 | 117.25°E | 24.61°N | 78 m | 7.31 | 55.8 | 14.8 |
| 26 | 117.33°E | 24.54°N | 37 m | 7.38 | 59.3 | 15.6 |
| 27 | 117.37°E | 24.50°N | 23 m | 7.40 | 59.9 | 15.0 |
| 28 | 117.40°E | 24.48°N | 24 m | 6.71 | 156 | 9.3 |
| 29 | 117.43°E | 24.52°N | 20 m | 7.13 | 91.2 | 14.6 |
| 30 | 117.45°E | 24.58°N | 27 m | 6.87 | 82.7 | 26.5 |
| 31 | 117.59°E | 24.56°N | 16 m | 7.04 | 106 | 21.6 |
| 32 | 117.69°E | 24.50°N | 1 m | 6.94 | 141 | 37.5 |
| 33 | 117.75°E | 24.49°N | 1 m | 7.01 | 173 | 49.0 |
| Nanxi River | ||||||
| 34 | 117.55°E | 24.26°N | 70 m | 7.29 | 70.4 | 15.2 |
| 35 | 117.67°E | 24.34°N | 16 m | 7.00 | 91.0 | 20.5 |
| 36 | 117.76°E | 24.35°N | 7 m | 6.96 | 120 | 26.2 |
| 37 | 117.90°E | 24.36°N | −1 m | 6.99 | 299 | 38.43 |
| Estuary | ||||||
| 22 | 117.74°E | 24.56°N | 7 m | 7.00 | 90.3 | 20.7 |
| 23 | 117.78°E | 24.52°N | 29 m | 7.08 | 88.8 | 19.6 |
| 38 | 117.79°E | 24.47°N | 7 m | 6.95 | 99.5 | 22.5 |
| 39 | 117.90°E | 24.48°N | −2 m | 7.05 | 105 | 20.7 |
| 40 | 117.89°E | 24.44°N | 0 m | 7.02 | 720 | 32.0 |
| 41 | 117.87°E | 24.43°N | 0 m | 6.99 | 97.2 | 20.5 |
| 42 | 117.86°E | 24.42°N | 5 m | 7.00 | 99.0 | 21.6 |