Soil drainage assessment by magnetic susceptibility measures in western Iran

摘要: Abstract The objective of the present study was to evaluate efficiency soil magnetic parameters for assessment drainage classes in Juneqan district, Charmahal and Bakhtiari province, western Iran. Four including well drained (WD), moderately (MWD), intermittent poor (IPD) poorly (PD) were selected. A total 89 pedons described samples collected within moisture control section. Magnetic susceptibility (MS) at high (χhf) low (χlf) frequencies frequency-dependent MS (χfd) evaluated laboratory. Poorly crystalline iron (Feo) pedogenic (Fed) values all also measured. results revealed that among four classes, PD class showed lowest χlf χhf values, greatest Feo Feo/Fed, contents Fed, as highest average increase on heating (at 500 °C). However, mentioned features an inverse trend WD compared PD. discriminant analysis demonstrated measures could prosperously discriminate between selected this area (average accuracy = 83.1%). Therefore, it can be concluded technique used a powerful, nondestructive fast separation case.