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通过野外调查采样、室内化学分析及仪器分析等方法,在对土壤基本性质分析测定的基础上,重点研究了吉林中部不同亚类黑土(3个亚类,5个剖面)2种微量元素的含量及垂直分布规律,分析了成土母质、成土过程、成土环境及土壤性质对各微量元素含量及分布的影响。结果表明:红土母质中全锌含量均高于黄土母质,全铜在不同亚类、不同母质黑土中含量分布变异较小;有效铜在典型黑土中有微弱的表聚现象,在草甸黑土中有明显的淀积特征,在白浆化黑土中有生物富集和淋溶淀积的特征。全锌在各剖面中的变化差异不大,典型黑土和草甸黑土中表现出明显的表聚特征,在白浆化黑土中表现出明显的淋溶淀积特征;有效锌与有机质间呈显著正相关。
Based on the analysis of the basic properties of soils, the contents of two trace elements in three sub-types of black soils (three subtypes and five cross-sections) in the middle of Jilin were studied through the methods of field survey and sampling, indoor chemical analysis and instrumental analysis. And the vertical distribution, the effects of soil parent material, soil forming process, soil forming environment and soil properties on the content and distribution of trace elements were analyzed. The results showed that the content of total zinc in red soil parent material was higher than that of loess parent material, and the variation of copper content in black soil of different sub-types and different parent materials was less. The available copper showed weak aggregation in typical black soil. There are obvious depositional characteristics, which are characterized by bioconcentration and leaching in white-black soil. There was no significant difference in the change of the whole zinc in each profile. The obvious feature of surface accretion was found in the typical black soil and meadow black soil, and obvious leaching deposition was found in the white-black soil. The effective zinc and organic matter were significant Positive correlation.