Technical note: Saturated hydraulic conductivity and textural heterogeneity of soils

摘要: Abstract. Saturated hydraulic conductivity ( Ksat ) is an important soil parameter that highly depends on soil's particle size distribution (PSD). The nature of this dependency explored in work two ways, (1) by using the information entropy as a heterogeneity PSD and (2) using descriptions PSD forms textural triplets, different than usual description terms triplet sand, silt, and clay contents. power parameter, descriptor ln⁡Ksat , was tested database larger than 19 000 soils. Bootstrap analysis yielded coefficients determination up to 0.977 for combines very coarse, coarse, medium, fine sand coarse particles; silt as intermediate clay particles. the correlation analysed for different classes different triplets bootstrap approach. Also, it noteworthy soils with finer textures had worse correlations, their properties are not solely dependent soil PSD. This can lead new PSD, other than clay, describe better soil physical properties, texture-dependent.