青岛市土壤Pb的形态分布及其影响因素分析

Morphology Distribution of Pb in Soil of Qingdao and Its Influencing Factors Analysis

选取青岛市63个土壤样品,采用分级提取试验方法,研究了土壤中Pb的形态分布特征及其影响因素。结果表明,土壤Pb的形态分布规律为:残渣态>铁锰氧化态>碳酸盐结合态>有机结合态>可交换态;Pb总量和土壤有机质含量是影响Pb化学形态的主要因素。

63 soil samples in Qingdao were selected.The morphology distribution characteristics of Pb in soil and their influencing factors were studied by sequential extraction test method.The results revealed that the morphology distribution laws of Pb in soil was residual fraction Fe-Mn oxides carbonates organic binding form exchangeable form.The total amount of Pb and organic matter content in soil were the main factors that affected the chemical forms of Pb.