采用土壤中微量元素的连续浸提的分组方法,研究河北省20个表层土壤中 Cu 的形态分布。将土壤中 Cu 分为交换态、碳酸盐结合态、氧化物结合态、有机质结合态和残渣态,其平均含量分别为0.09 mg/kg,0.06 mg/kg,4.88 mg/kg,0.48 mg/kg,和9.20 mg/kg。并讨论了土壤中 Cu 的形态分布特征及影响因素。此结果有助于评价土壤中 Cu 的背景值和了解土壤中Cu 的化学行为。 The method of continuous extraction of trace elements in soil was used to study the distribution of Cu in 20 surface soils in Hebei Province. The average contents of Cu in the soil were 0.09 mg / kg, 0.06 mg / kg, 4.88 mg / kg and 0.48 mg / kg, respectively. kg, and 9.20 mg / kg. The shape distribution of Cu in soil and its influencing factors are also discussed. This result helps to evaluate the background value of Cu in soils and to understand the chemical behavior of Cu in soils.