Study on Accumulation and Distribution of Cu, Ni, Cr and Cd in Polluted Soils by Rice

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ABSTRACT

The absorption and distribution of Cu, Ni, Cr and Cd in polluted soils by rice were investigated by the pot-cultivation test on single pollution condition.The study show that the content distribution of Cu, Ni, Cr and Cd in different parts of the rice plant was uneven.The accumulation of heavy metals on organa of metabolic vigorous are much bigger than on organa of nourishment storage such as grain and fruit. Under the same treating condition, the distribution of Cu and Ni were root>leaf >stem>husk> grain and Cd was root >stem> grain>husk>leaf.

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