Soil salinity (%)	Soil salinization	Area ratio (%)
Soil salinity (%)	Soil salinization	0 - 15 cm	15 - 30 cm	30 - 45 cm
<0.1	Non-salinization	0.00	0.00	0.00
0.1 - 0.2	Mild salinization	0.75	0.14	0.20
0.2 - 0.4	Moderate salinization	38.86	20.21	12.58
0.4 - 0.6	Severe salinization	19.70	33.42	35.54
>0.6	Saline soil	40.69	46.23	51.68