鄱阳湖水生植物对重金属铜、铅、锌的富集作用研究

Study on Accumulation of Heavy Metal Cu、Pb、Zn in Aquatic Plants of Poyang Lake

对采集的土壤和水生植物样品中的铜、铅、锌等重金属含量进行了测定,并分别进行了分析。采样点的土壤受到了不同程度的重金属污染,污染的主要来源是附近的工业企业所排放的污、废水。植物对重金属的富集有一定的选择性,重金属在植物体内的迁移能力不同。芦苇和丝茅草对重金属的富集能力较强,且具备了锌超富集植物的基本特征。

In this paper,we determined and analysed the contents of heavy metals Cu、Pb、Zn in soil and aquatic plant sample.The soil was contaminated by heavy metal in different degrees.The main source of pollution was nearby industry waste and effluent.Different plants have different selective accumulation of heavy metals and different heavy metals have different translocation ability in plants.Phragmites australis and Esparto grass have strong accumulation ability of heavy metals and also have basic characteristics as Zn hyperaccumulator.