Effects of Amendments and Water Conditions on the Chemical Speciation of Cd and Pb in Contaminated Paddy Soil in a Mining Area
文献类型: 外文期刊
第一作者: Zhang, Chaolan
作者: Zhang, Chaolan;Yang, Weiwei;Li, Fangyuan;Lu, Meixian;Pan, Liping;Li, Chuanzhang;Xu, Guiping
作者机构:
关键词: amendments;cadmium;chemical speciation;lead;soil water
期刊名称:SOIL & SEDIMENT CONTAMINATION ( 影响因子:2.061; 五年影响因子:1.801 )
ISSN:
年卷期:
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收录情况: SCI
摘要: Lime, sepiolite and peat were used as amendments to study their effects on the chemical speciation of Cd and Pb in a polluted paddy soil under moist and water-logged conditions. The results showed that application of amendments reduced acid-extractable Cd (up to 12.56% and 5.07%) and Pb (up to 6.69% and 2.68%) in moist and water-logged soils, respectively. The reducible Cd and residual Cd was increased while the oxidizable Cd was decreased after adding amendments. However, the oxidizable Pb was increased while the residual Pb was decreased in amended soil, and the reducible Pb presented a different changing trend under moist and water-logged conditions. The soil pH was significantly correlated with different fractions of Cd and Pb in soil, which indicated a distinct influence of soil pH on the redistribution process of Cd and Pb fractions in amended soil.
分类号: X
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