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本文对闽北低山区森林土壤中的Ｂ，Ｍｏ，Ｃｕ，Ｚｎ，Ｆｅ，Ｍｎ六种微量元素全量和有效量水平，分布，影响因子等进行了研究．结果表明：闽北森林土壤中的全Ｂ、Ｚｎ、Ｍｎ含量均低于全国土壤平均值，属于较低或很低的水平；影响全量的主要土壤因子是土壤质地和ｐＨ值．土壤中有效态微量元素含量除Ｚｎ、Ｆｅ外，其它四种元素含量均低于临界值含量，属于很低水平；其主要影响因子为土壤质地、全量、ｐＨ值和有机质含量．
In this paper, the levels, distribution and influencing factors of six trace elements (B, Mo, Cu, Zn, Fe and Mn) in forest soils of northern Fujian were studied. The results showed that the contents of total B, Zn and Mn in the forest soil of northern Fujian were all lower than the national soil average values, which were low or very low. The main soil factors influencing the total soil quality were soil texture and pH value. In addition to Zn and Fe, the content of available trace elements in soil was lower than the critical value, which was very low. The main influencing factors were soil texture, total amount, pH value and organic matter content.