2026-03-01 QUAESTIONES GEOGRAPHICAE 2026 45(卷), 1(期), (5-18页)
Saturated hydraulic conductivity (Ks) is a fundamental soil property influencing water flow and quality. While previous research primarily focused on small-scale spatial variability, this study assesses Ks distribution across a larger area within an irrigated perimeter. We aimed to determine the spatial distribution of Ks in the Beni Moussa irrigated perimeter (Morocco) using field measurements combined with geostatistical analysis. Seventy soil samples were collected from different soil units, and Ks was measured in situ using a single-ring infiltrometer. Samples were analysed for physicochemical properties, including texture, organic carbon (OC), organic matter (OM), porosity, bulk density (BD), CaCO3, and water content (WC). Statistical analysis examined correlations between these parameters. Spatial variability was assessed using semi-variograms, and spatial distribution was modelled via kriging interpolation. Results reveal significant spatial heterogeneity, with Ks values ranging from 32 to 680 mm