茶树对重金属Cd、Pb吸附性能的研究

Study on Absorption of Heavy Metal(Cd and Pb) by Tea Plant

试验分别对不同镉(Cd)与铅(Pb)污染程度土壤中的茶树及不同品种、不同季节茶树对重金属Cd和Pb富集的差异性进行研究分析。结果表明:茶树叶片中的重金属镉、铅含量与土壤中的镉、铅含量存在密切的关系;不同品种茶树对重金属的富集存在明显的差异性,其中白毫早、湘波绿和桃源大叶相对其他茶树品种,对重金属Cd和Pb的富集较低;此外,茶树对Cd和Pb两种重金属的富集表现出季节性差异。

In this experiment, analysis on the concentration of heavy metals in tea soils with different heavy metal pollution levels was different, differences of heavy metal accumulation in different soils, the difference of heavy metal accumulation in tea in different seasons. The results showed that Cd and Pb contents in tea samples were closely related to Cd and Pb contents in soil samples, Baihaozao, Xiangbolv and Taoyuandaye relative to other varieties of tea, The accumulation of heavy metals Cd and Pb was low. The enrichment of Cd and Pb in three seasons was different.