对福建省代表性母质发育的赤红壤和红壤20个剖面、66个土样进行测定.结果表明,两类土壤稀土总量平均值达257.1mgkg~(-1)和253.8mgkg~(-1),但变化明显地受母质类型影响.在分量中均以轻稀土占优势.可溶态稀土A层小于10mgkg~(-1),B层<14mgkg~(-1),处于较低水平.在剖面中轻稀土和重稀土具有明显的分馏特征.稀土总量和轻稀土含量与不同形态氧化铁的消长具有极显著正相关. The results showed that the total amount of rare earth in two types of soils reached 257.1mgkg -1 and 253.8mgkg -1, , But the changes were obviously influenced by the parental types.The light rare earths were all dominant in the components.The dissolved RE layers were less than 10mgkg -1 and the B layer was less than 14mgkg -1, In the profile, the light rare earths and heavy rare earths have obvious characteristics of fractionation.The content of rare earths and light rare earths have extremely significant positive correlation with the growth of different forms of iron oxides.