Phytoextraction of heavy metals by canola (Brassica napus) and radish (Raphanus sativus) grown on multicontaminated soil

被引：381

作者：

Marchiol, L ^{[1
]}

Assolari, S ^{[1
]}

Sacco, P ^{[1
]}

Zerbi, G ^{[1
]}

机构：

[1] Univ Udine, Dept Agr & Environm Sci, I-33100 Udine, Italy

来源：

ENVIRONMENTAL POLLUTION | 2004年 / 132卷 / 01期

关键词：

soil pollution; heavy metals; phytoremediation; phytoextraction;

D O I：

10.1016/j.envpol.2004.04.001

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Phytoextraction can provide an effective in situ technique for removing heavy metals from polluted soils. The experiment reported in this paper was undertaken to study the basic potential of phytoextraction of Brassica napus (canola) and Raphanus sativus (radish) grown on a multi-metal contaminated soil in the framework of a pot-experiment. Chlorophyll contents and gas exchanges were measured during the experiment; the heavy metal phytoextraction efficiency of canola and radish were also determined and the phytoextraction coefficient for each metal calculated. Data indicated that both species are moderately tolerant to heavy metals and that radish is more so than canola. These species showed relatively low phytoremediation potential of multicontaminated soils. They could possibly be used with success in marginally polluted soils where their growth would not be impaired and the extraction of heavy metals could be maintained at satisfying levels. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：21 / 27

页数：7

共 42 条

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