Vertical and horizontal in the soil salinity content for selected soil samples in al-Rrefaee city, The-Qar, Iraq

الملخص EN

The soil salinity distribution maps were drawn for Al Refaae city for depths of 0-5 cm and 5-15 cm with a total area of 55 km2 by taking 38 soil samples, 19 samples for each depth.

EC (1: 1) values for the 0-5 cm depth samples ranged between 6.5 dsm-1 (R14) and 77.6 dsm-1 (R8) and the EC values for the 5-15 cm depth samples ranged from 7.6 dsm-1 (R12) and 139.5 dsm-1 (R9).

The contour maps of the depth of 0-5 cm show that the northern, western, and southern parts of the study dominated by high conductivity values (> 25 dsm-1), while the eastern part is controlled by the low conductivity values.

For the 5-15 cm depth samples, EC contour map showed that the northern part of the study area has low EC values (< 25 dsm-1), while for the southern part, the EC values were higher than 25 dsm-1.

Maps of desertification degree in the 0-5 cm depth region is much more and wider than the desertification degree for the 5-15 cm depth sample areas which is obviously due to the used surface land and the dominated weather, which affect the soil surface much more than subsurface soil.