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Seedling growth and metal accumulation of selected woody species in copper and lead/zinc mine tailings - Seedling growth and metal accumulation of selected woody species in copper and lead/zinc mine tailings

Xiang ; Shi ; Xiaolei ; Zhang ; Guangcai ; Chen ; Yitai ; Chen ; Ling ; Wang ; Xiaoquan ; Shan

环境科学学报:英文版 - Journal of Environmental Sciences, 2011, Vol.23(2), pp.266-274 [Tạp chí có phản biện]

ISSN: 1001-0742

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  • Nhan đề:
    Seedling growth and metal accumulation of selected woody species in copper and lead/zinc mine tailings - Seedling growth and metal accumulation of selected woody species in copper and lead/zinc mine tailings
  • Tác giả: Xiang ; Shi ; Xiaolei ; Zhang ; Guangcai ; Chen ; Yitai ; Chen ; Ling ; Wang ; Xiaoquan ; Shan
  • Chủ đề: 尾矿堆积 ; 幼苗生长 ; 矿山尾矿 ; 金属铜 ; ; ; 木本植物 ; 植物种植 ; Woody Plants; Mine Tailing; Tolerance; Revegetation; Root
  • Là 1 phần của: 环境科学学报:英文版 - Journal of Environmental Sciences, 2011, Vol.23(2), pp.266-274
  • Mô tả: A greenhouse pot experiment was conducted to evaluate the potential of selected woody plants for revegetation in copper (Cu) and lead/zinc (Pb/Zn) mine tailing areas. Five woody species (Amorpha fruticosa Linn, Vitex trifolia Linn. var. simplicifolia Chum, Glochidion puberum (Linn.) Hutch, Broussonetia papyrifera, and Styrax tonkinensis) and one herbaceous species ( Sesbania cannabina Pets) were planted in Cu and Pb/Zn tailings to assess their growth, root morphology, nutrition uptake, metal accumulation, and translocation in plants. Amorpha fruticosa maintained normal growth, while the other species demonstrated stress related growth and root development. Sesbania cannabina showed the highest biomass among the plants, although it decreased by 30% in Cu tailings and 40% in Pb/Zn railings. Calculated tolerance index (TI) values suggested that A. fruticosa, an N-fixing shrub, was the most tolerant species to both tailings (TI values 0.92-1.01), while S. cannabina had a moderate TI of 0.65-0.81 and B. papyrifera was the most sensitive species, especially to Pb/Zn tailings (TI values 0.15-0.19). Despite the high concentrations of heavy metals in the mine tailings and plants roots, only a small transfer of these elements to the aboveground parts of the woody plants was evident from the low translocation factor (TF) values. Among the woody plants, V. trifolia var. simplicifolia had the highest TF values for Zn (1.32), Cu (0.78), and Pb/Zn (0.78). The results suggested that A. fruticosa and S. cannabina, which have the highest tolerance and biomass production, respectively, demonstrated the potential for tailings revegetation in southern China.
  • Nhan đề liên quan: 作者单位: Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400, China College of Forestry, Shandong Agricultural University, Taian 271018, China College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Econvironmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
  • Số nhận dạng: ISSN: 1001-0742

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