Pedosphere 6(4): 305--312, 1996
ISSN 1002-0160/CN 32-1315/P
©1996 Soil Science Society of China
Published by Elsevier B.V. and Science Press
Combined heavy metal pollution in red soil
CHEN Huai-Man and ZHENG Chun-Rong
LMCP, Institute of Soil Science, Academia Sinica, Nanjing 210008 (China)
      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 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 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 poVution by heavy metals in the soil is discussed preliminarily in terms of the relative pollution equivalent.
Key Words:  heavy metals, rice, risk assessment, soil
Citation: Chen, H. M. and Zheng, C. R. 1996. Combined heavy metal pollution in red soil. Pedosphere. 6(4): 305-312.
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