Impact of heavy metal combined pollution on soybean growth and its integrated assessment

Abstract

Abstract: The impact of Cd,Pb,Cu, Zn and As combined pollution on soybean growth is studied with Hogland solution culture.The results show that under condition of combined pollution, the accumulation of heavy metals in root is in the order of As>Pb>Cu>Cd>Zn and that in stem and leaf is in the order of Cd>Cu>Zn>As>Pb.The type of their interaction is depended on the added concentration of elements and the proportion of coexistent ones.As and Cu are the main elements toxic to the growth of soybean.Relative ionic intensity is an effective index for indicating and controlling the integrated effect of combined pollution.

Key words: Heavy metals, Combined pollution, Integrated assessment, diet composition, feeding change, trophic level, feeding intensity, Solenocera melantho

Yu Guoying, Wu Yanyu, Wang Xin . Impact of heavy metal combined pollution on soybean growth and its integrated assessment[J]. Chinese Journal of Applied Ecology, 1995, 6(4): 433-439.

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Impact of heavy metal combined pollution on soybean growth and its integrated assessment

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