Status and Causes of Soil Salinization of Irrigated Agricultural Lands in Southern Baja California, Mexico

Table 2

Irrigation water quality in the investigated area.

Sites	pH	EC; dS m^−1	Cations and anions (mmolc L^−1)								SAR (mmol L−1)^1/2
			Ca^2+	Mg^2+	K^+	Na^+	SO4^2−	NO3^−	HCO3^−	Cl^−
Site 1	7.99	0.96	4.10	2.16	0.09	3.47	0.93	0.58	2.63	4.69	1.96
Site 2	8.02	0.83	2.66	1.94	0.22	4.80	0.87	0.01	2.33	5.76	3.17
Site 3	7.78	1.38	6.06	4.26	0.45	5.11	1.24	0.39	2.12	11.11	2.25
Site 4	7.81	1.74	7.32	5.04	0.63	9.86	1.50	0.00	2.06	15.70	3.97
Site 5	7.81	1.74	7.32	5.04	0.63	9.86	1.50	0.00	2.06	15.70	3.97