指标 | 4月 | 5月 | 6月 | 7月 | 8月 | 9月 | 10月 |
pH | 8.83 | 8.38 | 8.7 | 9.07 | 8.78 | 9.08 | 8.95 |
ppmDO | 3.31 | ND | ND | 3.21 | 2.01 | 2.09 | 5.94 |
ms/cm | 48.73 | 46.8 | 48.76 | 48.13 | 49.25 | 48.09 | 51.32 |
ppmTds | 24.35 | 23.39 | 24.38 | 24.05 | 24.61 | 24.13 | 25.56 |
psu | 31.66 | 30.38 | 31.65 | 31.18 | 31.95 | 31.27 | 33.53 |
σt | 19.65 | 19.90 | 19.20 | 18.80 | 19.00 | 18.50 | 22.50 |
℃ | 28.63 | 25.00 | 30.16 | 30.17 | 31.34 | 31.19 | 23.92 |
Psi | 14.64 | 14.63 | 14.66 | 14.60 | 14.52 | 14.67 | 14.77 |
硝酸氮(mg/l) | 0.417 | 0.381 | 0.474 | 0.437 | 0.647 | 0.458 | 0.707 |
总氮(mg/l) | 2.398 | 1.005 | 1.057 | 2.075 | 2.791 | 3.163 | 4.298 |
溶解性总磷(mg/l) | 0.041 | 0.037 | 0.057 | 0.033 | 0.045 | 0.033 | 0.039 |
总磷(mg/l) | 0.054 | 0.043 | 0.075 | 0.040 | 0.045 | 0.059 | 0.063 |