A comparative study of cadmium phytoextraction by accumulator and weed species

被引：315

作者：

Ghosh, M ^{[1
]}

Singh, SP ^{[1
]}

机构：

[1] Devi Ahilya Univ, Fac Engn Sci, Sch Energy & Environm Studies, Biomass & Waste Management Lab, Indore 452017, Madhya Pradesh, India

来源：

ENVIRONMENTAL POLLUTION | 2005年 / 133卷 / 02期

关键词：

phytoextraction; cadmium; bioconcentration factor; high biomass weeds; transportation index;

D O I：

10.1016/j.envpol.2004.05.015

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Phytoextraction has shown great potential as an alternative technique for the remediation of metal contaminated soils. The objective of this study was to investigate cadmium (Cd) phytoextraction ability of high biomass producing weeds in comparison to indicator plant species. The pot study conducted with 10 to 200 mg Cd kg(-1) soil indicated that Ipomoea carnea was more effective in removing Cd from soil than Brassica juncea. Among the five species, B. juncea accumulated maximum Cd, but I. carnea followed by Dhatura innoxia and Phragmytes karka were the most suitable species for phytoextraction of cadmium from soil, if the whole plant or above ground biomass is harvested. In the relatively short time of this experiment, I. carnea produced more than 5 times more biomass in comparison to B. juncea. There were significant differences (p < 0.05) between the shoot length and shoot mass of control and treated plants. (C) 2004 Published by Elsevier Ltd.

引用

页码：365 / 371

页数：7

共 33 条

[1]

ALLOWAY BJ, 1995, HEAVY METALS SOILS, P123

[2]

[Anonymous], PLANT CELL ENV

[3]

*APHA AWWA WPCF, 1992, STAND METH EX WAT WA, P1020

[4] ACCUMULATORS AND EXCLUDERS - STRATEGIES IN THE RESPONSE OF PLANTS TO HEAVY-METALS [J].