A study of soil salinity in Wadi Al-Qubeiba and its impact on agricultural activity in the city of Sirte

Abstract

The study was conducted in the Wadi Al-Qubeiba area, west of the city of Sirte, with the aim of classifying the area's soils according to the American classification of salt-affected lands, The study examined soil salinity and its impact on agricultural activity in the region. The results showed a variation in the region's soils, ranging from non-saline to saline depending on their salt content. Salt concentration values fell within a range of slightly saline soils, which were found in (15) locations in the region, while the remaining locations were classified as saline soils, The results also showed a variation in soil pH values, ranging from (6.9-8.6). From these values, it is clear that the soils in this region are distributed in the range from neutral to alkaline soils, As for the values of the calcium element in the soil of the study area, most of the values were within the normal range, with a noticeable increase in the calcium value in some locations. The results showed that the values of the magnesium element in the soil of the study area were within the normal range, with a noticeable increase in some locations, The sodium values for the soils of the study area were within the normal range, with some locations noting their elevation. The values of the sodium adsorption ratio (SAR) fell within the normal range for most locations in the area, and the values of the exchangeable sodium ratio (ESP%) fell within the normal range in all locations of the study area.