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Heavy Metal Runoff in Relation to Soil Characteristics

作  者:
Zhao Xiulan;Qing Changle;Wei Shiqiang
单  位:
关键词:
heavy metal;mobility;soil characteristics
摘  要:
Cu, Zn, Pb and Hg runoff from yellow limestone soil and purplesoils and the relationships between the mobility of the heavy metalsand the soil characteristics were studied in laboratory using arainfall simulator. The results showed that the concentrations ofsoluble Zn in surface runoff were significantly negatively correlatedwith the contents of <0.002 mm particles and CEC of the soils,indicating that Zn was mostly adsorbed by clays in the soils. Thecontents of Cu and Hg in surface runoff were positively related totheir contents in the soils.

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