Hydraulic Conductivity Values of Soils in Different Soil Processing Conditions

Hydraulic conductivity is an important indicator of water movement and pore structure in soil. Therefore, it is important to determine soil physical and hydraulic properties under different land use conditions. The present study was comducted under three different landuse; dry farming (D), irrigated land (I) and pastureland (P). Three samples were colected from each field (9 samples in total). Infiltration measurements were also tested at each sampling point in each field. The results of this study showed that although hydraulic conductivity was not significantly differentt under dry and irrigated agricultural lands, significant differences were observed between the pastureland and the tilled areas. Soil water infiltration was positively correlated with soil organic matter, aggregate stability and hydraulic conductivity, whereas infiltration was negatively correlated with bulk density. The lowest infiltration rate was found under pastureland compare to those are the highest under the irrigated lands. Therefore, increasing the organic matter content of the local soils will make significant contributions to sustainable soil management.