Table 1.

The apparent electrical conductivity (EC_a, mS/m) measured in the horizontal mode at 0–50 cm (EC_ah) and vertical mode at 0–100 cm (EC_av) in October (Whitwarta and Coomandook), August (Cunderdin in 2014) and September (Cunderdin in 2015), the calculated salinity of the soil solution (mM) and soil electrical conductivity (dS/m) at 0–25 and 25–50 cm

Year	Location	Site	EM38 value 0–50 cm (ECah) (mS/m)		EM38 value 0–100 cm (ECav) (mS/m)		Soil solution (mM) 0–25 cm		Soil solution (mM) 25–50 cm		Soil EC1:5 (dS/m) 0–25 cm		Soil EC1:5 (dS/m) 25–50 cm		n
			Mean	SEM	Mean	SEM	Mean	SEM	Mean	SEM	Mean	SEM	Mean	SEM
2014	Whitwarta	Low salt	53	0.4	80	0.5	113	0.03	104	0.8	0.13	0.0004	0.18	0.0019	504
		High salt	100	0.3	157	0.4	141	0.7	179	0.7	0.18	0.0008	0.34	0.0030	504
	Cunderdin	Low salt	nd	nd	nd	nd	nd	nd	nd	nd	nd	nd	nd	nd	nd
		High salt	221	1.6	276	1.3	445	11	646	12	0.79	0.020	1.46	0.0235	585
2015	Coomandook	Low salt	136	0.5	90	0.4	43	0.1	44	0.1	0.03	0.0003	0.06	0.0007	504
		High salt	151	1.0	113	1.0	308	1.0	244	1.0	0.45	0.0100	0.57	0.0130	396
	Whitwarta	Low salt	60	0.7	41	0.4	33	0.2	40	0.03	0.09	0.0003	0.11	0.0001	504
		High salt	175	1.3	124	1.1	70	1.6	119	4.5	0.27	0.0098	0.40	0.0113	504
	Cunderdin	Low salt	70	1.0	98	1.2	61	0.5	90	1.5	0.11	0.0020	0.25	0.0060	585
		High salt	216	1.5	261	1.3	268	5.0	349	4.3	0.50	0.0141	1.02	0.0157	598

Values derived from calibration curves between measured soil EC_1:5 and salinity of the soil solution with EM38 values at 0–50 cm for Cunderdin and 0–100 cm for Whitwarta and Coomandook

n the number of plots tested, nd no data