Trace element accumulation in woody plants of the Guadiamar Valley, SW Spain:: A large-scale phytomanagement case study

被引：131

作者：

Dominguez, Maria T. ^{[1
]}

Maranon, Teodoro ^{[1
]}

Murillo, Jose M. ^{[1
]}

Schulin, Rainer ^{[2
]}

Robinson, Brett H. ^{[2
]}

机构：

[1] CSIC, Inst Recursos Nat & Agrobiol, E-41080 Seville, Spain

[2] ETH, Inst Terr Ecosyst, CH-8092 Zurich, Switzerland

来源：

ENVIRONMENTAL POLLUTION | 2008年 / 152卷 / 01期

关键词：

heavy metal; bioaccumulation; phytoremediation; Populus alba; Quercus ilex; Olea europaea;

D O I：

10.1016/j.envpol.2007.05.021

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Phytomanagement employs vegetation and soil amendments to reduce the environmental risk posed by contaminated sites. We investigated the distribution of trace elements in soils and woody plants from a large phytomanaged site, the Guadiamar Valley (SW Spain), 7 years after a mine spill, which contaminated the area in 1998. At spill-affected sites, topsoils (0-25 cm) had elevated concentrations of As (129 mg kg(-1)), Bi (1.64 mg kg(-1)), Cd (1.44 mg kg(-1)), Cu (115 mg kg(-1)), Ph (210 mg kg(-1)), Sb (13.8 mg kg-1), TI (1.17 mg kg(-1)) and Zn (457 mg kg(-1)). Trace element concentrations in the studied species were, on average, within the normal ranges for higher plants. An exception was white poplar (Popidus alba), which accumulated Cd and Zn in leaves up to 3 and 410 mg ka(-1) respectively. We discuss the results with regard to the phytomanagement of trace element contaminated sites. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：50 / 59

页数：10

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