The effectiveness of metal accumulation in mangrove species is related to the root structure and diversity. This study aims to investigate the type of roots belong to Avicennia marina, Rhizophora mucronata, and Sonneratia caseolaris in accumulating Cu and Zn from sediment and water. The samples consist of roots, water and sediment collected from 9 stations in River Blanakan. The heavy metals in samples were analyzed by using AAS. The Zn in A. marina, R. mucronata and S. caseolaris roots were 18.08-54.64 mg/kg, 9.75-54.75 mg/kg, and 19.58-33.33 mg/kg. While, the Cu in A. marina, R. mucronata and S. caseolaris roots were 0.33-0.89 mg/kg, 0.2-54.75 mg/kg and 0.4-0.99 mg/kg. The effectiveness of mangrove roots in accumulating metals is measured by Transfer Factor (TF). The results of this study showed that R. mucronata has the highest TF. The TF of sediment-to-root for Zn in mangrove species is R. mucronata>S. caseolaris>A. marina. While, the TF of sediment-to-root for Cu is R. mucronata>S. caseolaris=A. marina. The TF ranges of R. mucronata for Zn are 0.30-0.38 and for Cu is 0.36-0.46. Hence, the R. mucronata with its unique prop root has significant potential in accumulating metals Cu and Zn from sediment.

红树林中金属积累的有效性与根系结构和多样性有关。本研究旨在调查属于Avicennia marina、Rhizophora mucronata和Sonneratia caseolaris的根在沉积物和水中积累铜和锌的类型。样本包括从布拉纳坎河的 9 个站点收集的根、水和沉积物。采用原子吸收光谱法对样品中的重金属进行分析。A. marina、R. mucronata和S. caseolaris根中的 Zn分别为 18.08-54.64 mg/kg、9.75-54.75 mg/kg 和 19.58-33.33 mg/kg。而A. marina、R. mucronata和S. caseolaris中的铜根为 0.33-0.89 mg/kg、0.2-54.75 mg/kg 和 0.4-0.99 mg/kg。红树林在积累金属方面的有效性通过转移因子 (TF) 来衡量。这项研究的结果表明，R. mucronata具有最高的 TF。红树林中 Zn 的沉积物到根系的 TF 为 R 。mucronata > S. caseolaris > A. marina。而 Cu 的沉积物到根的 TF 是R. mucronata > S. caseolaris=A。码头_ R. mucronata对 Zn的 TF 范围是 0.30-0.38，对于 Cu 是 0.36-0.46。因此，具有独特支柱根的R. mucronata在从沉积物中积累金属 Cu 和 Zn 方面具有巨大潜力。