Soil salinity in irrigated fields can affect crop growth. Researchers used 3-D mapping to track how soil salinity changes throughout the seasons. They found that salinity levels shift from autumn to spring, with more non-saline soil in spring. However, salinity accumulates from spring to autumn, reducing non-saline areas. Different soil depths showed strong correlations in salinity levels. Salinity was higher in topsoil and deep subsoil due to evaporation and drainage. Microtopography, like swales and slopes, influenced where salinity was higher or lower. This study helps understand how soil salinity changes in irrigated fields.