Magnetic susceptibility (MS) as a fast, non-destructive, and reasonable technique is very useful in soil genesis and evolution studies. The MS of soils along a climolithotoposequence in Jazmoorian Watershed was studied in the present research and the vertical distribution of MS in the representative pedons affected by soil forming factors (parent material, climate and relief) was also investigated. Rock pediment, mantled pediment, piedmont plain, alluvial fan, and playa geomorphic positions with two igneous (gabbro, diorite, granite, and andesite) and sedimentary (limestone, conglomerate and playa deposits) parent materials were selected. Thirteen representative pedons which best reflected the variations of soil forming factors were studied. Results of the study showed that the maximum (877.8 × 10⁻⁸ m³ kg⁻¹) and the minimum (5.2 × 10⁻⁸ m³ kg⁻¹) low frequency (χ_lf) MS were respectively determined in the soils formed on igneous and sedimentary parent materials. The χ_lf values were increased with depth in soils affected by igneous parent material, but the opposite trend was found in soils with a sedimentary origin. The activity ratio of Fe_o/Fe_d in xeric and aridic moisture regimes were 0.03 and 0.09, respectively. Meanwhile, MS value in surface soil of pedon 2 (with xeric moisture regime) is lower than its parent material which is a support for the higher weathering of this soil due to higher moisture compared to pedon 5 with an aridic moisture regime. Decreasing evolution trend of soils on igneous parent material was in the order of alluvial fan < piedmont plain < mantled pediment, but in the soils on sedimentary parent material was in the order of playa < rock pediment < mantled pediment < alluvial fan. Results of the study clearly showed that the soil χ_lf values changed with variations in climate, parent material, and topography.

磁化率（MS）作为一种快速，无损且合理的技术，在土壤成因和演化研究中非常有用。本研究研究了Jazmoorian流域沿climolithotoposequeques的土壤的MS，并研究了受土壤形成因素（母体，气候和地形）影响的典型花岗石中MS的垂直分布。选择了岩石山墙，地幔山墙，山前平原，冲积扇和具有两个火成岩（辉闪岩，闪长岩，花岗岩和安山岩）和沉积物（石灰岩，砾岩和普拉亚沉积物）母体的地貌位置。研究了十三种最能反映土壤形成因子变化的有代表性的花ons。研究结果表明最大（877.8×10 ^-8 m在火成岩和沉积母体上形成的土壤中分别测定了³ kg ^-1）和最低（5.2×10 ^-8 m ³ kg ^-1）低频（_χlf）MS。该χ _LF值与在受火成岩母材的土壤深度增加，但相反的趋势是在土壤中发现与沉积源。Fe _o / Fe _d的活度比干旱和干旱条件下的水分含量分别为0.03和0.09。同时，第2脚（具有干湿状态）的表层土壤中的MS值低于其母体材料，这是由于与具有干旱湿润状态的第5脚的土壤相比，由于较高的水分而支持了该土壤的更高耐候性。火成母质上土壤的演化趋势按冲积扇<山前平原<地幔沉积物的顺序排列，而沉积母质上的土壤则以普拉亚<岩石沉积物<地幔沉积物<冲积扇的顺序排列。研究结果清楚地表明，土壤的_χlf值随气候，母体材料和地形的变化而变化。