吉林省中部不同亚类、不同母质黑土中铜、锌的分布变化规律

The Distribution of Cu,Zn in Black Soils of Different Subgroups,Different Parent Materials in the Central Part of Jilin Province

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。

The Vertical distribution of six trace elements in different subgroup of Black soils(three subgroups five profiles)in the middle of Jilin province were studied by means of field work,chemicalanalysis and instrument analysis.The result showed that the tested trace elements had differ-ent distribution in different parent material profile and soil types.Red parent material had high content of total Zn.Total Cu had little change in different subgroup parent materials,Available Cu had little surface accumulation in typical black soil,while in meadow black soil had obvious leaching,in albic black soil had both biological enrichment and leaching.Total Zn had little change in the each different profile,and it had obvious surface accumulation in both typicalblack soil and meadow black soil,in al-bic black soil had obvious leaching.Available Zn was significantly correlated to organic material.