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Position: Home > Articles > Combined heavy metal pollution in red soil. Pedosphere 1996,6 (4)

Combined heavy metal pollution in red soil.

作  者：
Chen HuaiMan;Zheng ChunRong;Chen HM;Zheng CR
单  位：
LMCP, Institute of Soil Science, Academia Sinica, PO Box 821, Nanjing 210008, China.;
关键词：
risk assessment;yields uptake interactions pollution soil lead cadmium copper zinc rice red soils;heavy metals;oryza china
摘  要：
The effects of combined heavy metal pollution of red soil in China on the growth of wetland rice and the transfer of Pb, Cd, Cu and Zn from soil into plants were studied by greenhouse pot experiments. The results showed that plant yields were markedly affected by heavy metals, with the exception of Pb, in soils under the experimental conditions, without taking into consideration all the interactions among elements. The concentrations of elements in plants were mainly affected by the specific element added to the soil. The effect of interactions among the heavy metals was very significant, either on plant yields or on the concentration of the elements in plants. The risk assessment of combined pollution by heavy metals in the soil is discussed in terms of the relative pollution equivalent.

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