Recovering a copper mine soil using organic amendments and phytomanagement with Brassica juncea L.

被引:35
|
作者
Rodriguez-Vila, Alfonso [1 ]
Covelo, Emma F. [1 ]
Forjan, Ruben [1 ]
Asensio, Veronica [1 ]
机构
[1] Univ Vigo, Dept Plant Biol & Soil Sci, Fac Biol, Vigo 36310, Spain
关键词
Settling pond; Phytoremediation; Technosol; Biochar; Brassica juncea; WASTE AMENDMENTS; TREE VEGETATION; METALS; PHYTOREMEDIATION; BIOCHAR; TAILINGS; PHYTOEXTRACTION; ACCUMULATION; IMPROVE;
D O I
10.1016/j.jenvman.2014.09.011
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
A 3-month greenhouse experiment was carried out for evaluating the effect of an amendment mixture and mustards on the chemical characteristics of a mine soil and the metal uptake by plants. A settling pond soil was amended with increasing percentages of a technosol and biochar mixture and vegetated with Brassica juncea L Adding amendments and planting mustards increased the soil pH from 2.83 to 6.18 and the TSC from u.l to 131 g kg(-1) and generally reduced the CaCl2-extractable metal concentrations in the soil. However, the amendments increased the pseudo-total soil concentration of Ni from 9.27 to 31.9 mg kg(-1), Pb from 27.9 to 91.6 mg kg(-1) and Zn from 46.5 to 577 mg kg(-1). The technosol and biochar mixture increased the shoot biomass from 0.74 to 2.95 g and generally reduced the metal concentrations in plants, meaning B. juncea as a potential candidate for phytostabilization of mine soils. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:73 / 80
页数:8
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