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用WCC—1 型磁化率仪测定了主要土类剖面116个,分层土样842个,并进行理化分析.磁化率以黑垆土>灌淤土>草甸土>沼泽土、灰钙土,其范围值为140～510~(-6)CGSM/cm~3.野外磁测可准确辨别剖面特征层次;同一母质,磁测可反映其熟化度和盐化度.磁化率影响因素有:成土母质类型、氧化—还原状况、土壤有机质及熟化度、粘粒含量、容重.同一条件下,有机质、容重、质地与磁化率有显著的相关性和直接效应.
116 main soil profiles and 842 stratified soil samples were measured by WCC-1 magnetic susceptibility meter, and physical and chemical analysis was carried out.The magnetic susceptibility was calculated from black soil> irrigation silt> meadow soil> swamp soil, , With a range of 140 ~ 510 ~ (-6) CGSM / cm ~ 3.Field magnetic measurements can accurately identify the profile features level; the same parent material, magnetic measurement can reflect the degree of ripening and salinization. Magnetic susceptibility factors are: Soil organic matter type, oxidation-reduction status, soil organic matter and degree of maturation, clay content and bulk density.Under the same conditions, organic matter, bulk density, texture and magnetic susceptibility were significantly correlated and direct effects.