| Na+ (mg/kg) | K+ (mg/kg) | Ca2+ (mg/kg) | Mg2+ (mg/kg) | Cl− (mg/kg) | SO42- (mg/kg) |
Spring, SS1 | 4.96 ± 0.01 | 4.17 ± 0.01 | 37.69 ± 0.02 | 13.06 ± 0.04 | 64.34 ± 0.02 | 296.62 ± 0.04 |
Spring, SS2 | 6.09 ± 0.01 | 5.41 ± 0.01 | 72.15 ± 0.26 | 17.83 ± 0.01 | 117.82 ± 0.70 | 537.42 ± 0.10 |
Summer, SS1 | 4.87 ± 0.01 | 4.34 ± 0.01 | 50.04 ± 0.02 | 14.48 ± 0.03 | 64.66 ± 0.02 | 554.17 ± 0.03 |
Summer, SS2 | 5.54 ± 0.01 | 5.98 ± 0.01 | 76.34 ± 0.79 | 19.41 ± 0.04 | 103.95 ± 0.18 | 386.02 ± 0.12 |
Autumn, SS1 | 4.91 ± 0.01 | 5.57 ± 0.03 | 49.19 ± 0.12 | 18.73 ± 0.02 | 70.17 ± 0.01 | 431.68 ± 0.02 |
Autumn, SS2 | 6.33 ± 0.01 | 5.86 ± 0.01 | 70.98 ± 0.02 | 18.95 ± 0.03 | 109.87 ± 0.09 | 589.16 ± 0.03 |
Winter, SS1 | 3.39 ± 0.01 | 5.56 ± 0.01 | 57.28 ± 0.02 | 16.33 ± 0.02 | 35.35 ± 0.02 | 450.01 ± 0.03 |
Winter, SS2 | 3.62 ± 0.02 | 5.02 ± 0.02 | 51.26 ± 0.73 | 16.32 ± 0.02 | 51.16 ± 0.04 | 428.55 ± 0.07 |