Salt | Salinity levels dS∙m−1 | Equation | ||||
| 1.03 | 2.5 | 4.0 | 5.5 | 7.0 |
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| EC |
|
|
|
NaCl | 0.34a | 0.29a | 0.29a | 0.28a | 0.22a | Y = −0.016x + 0.353 R2 = 0.83** |
NaCl + CaCl2 | 0.34a | 0.27a | 0.27a | 0.23b | 0.21a | Y = −0.020x + 0.352 R2 = 0.92** |
| Na |
| ||||
NaCl | 0.035a | 0.037a | 0.050a | 0.037a | 0.012a | Y = −0.002x2 + 0.017x + 0.017 R2 = 0.88** |
NaCl + CaCl2 | 0.037a | 0.029b | 0.019b | 0.014b | 0.011a | Y = −0.004x + 0.040 R2 = 0.96** |
| K |
| ||||
NaCl | 5.04a | 5.45a | 6.16a | 6.33a | 7.10a | Y = 0.33x + 4.68 R2 = 0.97** |
NaCl + CaCl2 | 4.63a | 5.86a | 5.39a | 6.57a | 7.51a | Y = 0.43x + 4.26 R2 = 0.85** |
| Ca |
| ||||
NaCl | 1.44a | 1.71a | 1.73a | 1.76a | 1.86a | Y = 0.06x + 1.462 R2 = 0.81** |
NaCl + CaCl2 | 1.57a | 1.76a | 1.63a | 1.80a | 2.00a | Y = 0.06x + 1.51 R2 = 0.72** |
| Mg |
| ||||
NaCl | 5.39a | 6.21a | 5.84a | 6.54a | 6.76a | Y = 0.20x + 5.32 R2 = 0.78** |
NaCl + CaCl2 | 4.60a | 5.66a | 5.99a | 6.46a | 7.22a | Y = 0.40x + 4.37 R2 = 0.96** |
| HCO3 |
| ||||
NaCl | 2.22a | 1.92a | 1.51a | 1.38a | 1.50a | Y = -0.13x + 2.24 R2 = 0.79* |
NaCl + CaCl2 | 1.36b | 1.55a | 1.80a | 1.98a | 1.44a | Y = 1.63ns |
| Cl |
| ||||
NaCl | 1.79a | 1.99a | 1.95a | 2.02b | 2.28a | Y = 0.06x + 1.73 R2 = 0.81** |
NaCl + CaCl2 | 1.78a | 2.04a | 2.07a | 2.21a | 2.36a | Y = 0.08x + 1.73 R2 = 0.94** |