Mobility and fractionation of copper in sandy soils

文献类型： 外文期刊

第一作者： Sun, Qian

作者： Sun, Qian;Sun, Qian;Sun, Qian;Li, Tiantian;Alva, A. K.;Li, Yuncong C.

作者机构：

关键词： Copper fungicide; column leaching; pore volumes; sequential fractionation; speciation

期刊名称：ENVIRONMENTAL POLLUTANTS AND BIOAVAILABILITY （ 影响因子：1.737； 五年影响因子：1.737 ）

ISSN： 2639-5932

年卷期： 2019 年 31 卷 1 期

页码：

收录情况： SCI

摘要： The transport and fractionation of copper (Cu) were investigated in three soils which were under continuous citrus production for over 30 years. The above soils received 50 kg Cu ha(-1), and were leached with eight pore volumes of water (equivalent to a total of 91 cm of rainfall). Following the completion of leaching, the leaching columns were sectioned into 5 cm depth increments for analyses of soil Cu. Concentrations of different forms of soil Cu were analyzed using a sequential fractionation procedure. The leaching column study indicated as much as 98% of the applied Cu remained in the upper 5 cm of the soil despite leaching eight pore volumes of water. Copper recovered in eight pore volumes of leachate accounted for 0.18-2.87% of Cu applied. The organically bound and precipitated forms of Cu accounted for 33-87% and 6-44% of total soil Cu, respectively.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序