Heavy metal pollution des sevious harm to plant growth and development, crop yields and qualities, and does sevious harm to human and environment by the bio-megascopic effect of biochains.

• 摘要重金属污染严重影响植物的生长发育，影响作物的产量和品质，并通过生物链放大作用进一步对人类和环境造成严重危害，因此重金属污染已成为世界性的重大环境问题。