Combined Heavy Metal Pollution in Red SoilEnglish Full Text

CHEN HUAIMAN and ZHENG CHUNRONG(LMCP, Institute of Soil Science, Academia Sinica, Nanjing 210008 China)

Abstract: The effects of combined heavy metal pollution of red soil on the growth of wetland rice and the transfer of Pb, Cd, Cu and Zn from soil into plants were studied by greenhouse pot experiment. The results showed that the plat 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 the elements. The concentrations of the 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 a combined pollution by heavy metals in the soil is discussed preliminarily in terms of the relative pollution equivalent.

Keywords：

heavy metals; rice; risk assessment; soil;

Series：
(D) Agriculture; (B) Chemistry/ Metallurgy/ Environment/ Mine Industry
Subject：
Environment Science and Resources Utilization
Classification Code：
X53

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Combined Heavy Metal Pollution in Red SoilEnglish Full Text

CHEN HUAIMAN and ZHENG CHUNRONG(LMCP, Institute of Soil Science, Academia Sinica, Nanjing 210008 China)

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