Table 2.
Statistical parameters of the continuously recorded ECa data sets and the soil properties analyzed.
| Date | Variable | Unit | N | Min. | Max. | Mean ± SD | Variance | CV | Skew | Kurt | D |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 14/3/2008 | ECa-V | mS m−1 | 1887 | 5.75 | 18.38 | 10.48 ± 1.19 | 1.42 | 11.35 | 0.527 | 0.124 | 0.045Ln |
| 14/3/2008 | ECa-H | mS m−1 | 1887 | 9.25 | 19.00 | 14.1 ± 0.77 | 0.60 | 5.46 | 0.065 | 1.810 | 0.040Ln |
| 3/4/2008 | ECa-V | mS m−1 | 1871 | 9.63 | 20.50 | 14.04 ± 2.15 | 4.64 | 15.31 | 0.662 | 0.083 | 0.073Ln |
| 3/4/2008 | ECa-H | mS m−1 | 1871 | 6.63 | 19.50 | 14.59 ± 0.77 | 0.60 | 5.28 | 0.160 | 10.51 | 0.095Ln |
| 23/6/2008 | ECa-V | mS m−1 | 1886 | 4.13 | 20.13 | 11.21 ± 2.47* | 6.12 | 22.03 | 0.485 | −0.243 | 0.071Ln |
| 23/6/2008 | ECa-H | mS m−1 | 1886 | 6.63 | 20.00 | 12.12 ± 1.79* | 3.22 | 14.77 | 0.839 | 1.285 | 0.092Ln |
| 23/6/2008 | CEe | mS m−1 | 40 | 7.00 | 28.00 | 13.82 ± 5.09 | 25.94 | 36.83 | 1.200 | 1.008 | 0.159n |
| 23/6/2008 | Clay | g kg−1 | 40 | 119.00 | 220.00 | 168.37 ± 30.92 | 956.54 | 18.36 | −0.190 | −1.321 | 0.153n |
| 23/6/2008 | Silt | g kg−1 | 40 | 233.00 | 357.00 | 296.25 ± 35.06 | 1229.73 | 11.83 | 0.149 | −1.041 | 0.098n |
| 23/6/2008 | Sand | g kg−1 | 40 | 487.00 | 586.00 | 535.37 ± 22.53 | 507.72 | 4.21 | 0.055 | −0.270 | 0.069n |
| 23/6/2008 | θg | % | 38 | 13.41 | 45.67 | 26.74 ± 6.81 | 49.50 | 25.47 | −2.904 | 6.510 | 0.085n |
N: number of measurements; Min.: minimum value; Max.: maximum value; Mean ± SD: mean ± standard deviation; CV: coefficient of variation (%); Skew: skewness; Kurt: kurtosis; and D: normality of the data for test of Kolmogorov-Smirnov (P < 0.01, n: normality, and Ln: log normality). *Nonsignificant at 5% level of ANOVA (SNK).