Phytostabilization of metals in mine soils using Brassica juncea in combination with organic amendments

Pérez Esteban, Javier and Escolástico, Consuelo and Moliner Aramendia, Ana María and Masaguer Rodríguez, Alberto and Ruíz Fernández, Juan (2013). Phytostabilization of metals in mine soils using Brassica juncea in combination with organic amendments. "Plant And Soil", v. 377 (n. 1-2); pp. 97-109. ISSN 0032-079X. https://doi.org/10.1007/s11104-013-1629-9.

Description

Title: Phytostabilization of metals in mine soils using Brassica juncea in combination with organic amendments
Author/s:
  • Pérez Esteban, Javier
  • Escolástico, Consuelo
  • Moliner Aramendia, Ana María
  • Masaguer Rodríguez, Alberto
  • Ruíz Fernández, Juan
Item Type: Article
Título de Revista/Publicación: Plant And Soil
Date: April 2013
ISSN: 0032-079X
Volume: 377
Subjects:
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Edafología [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Background and aims The high metal bioavailability and the poor conditions of mine soils yield a low plant biomass, limiting the application of phytoremediation techniques. A greenhouse experiment was performed to evaluate the effects of organic amendments on metal stabilization and the potential of Brassica juncea L. for phytostabilization in mine soils. Methods Plants were grown in pots filled with soils collected from two mine sites located in Central Spain mixed with 0, 30 and 60 tha?1 of pine bark compost and horse- and sheep-manure compost. Plant biomass and metal concentrations in roots and shoots were measured. Metal bioavailability was assessed using a rhizosphere-based method (rhizo), which consists of a mixture of low-molecular-weight organic acids to simulate root exudates. Results Manure reduced metal concentrations in shoots (10?50 % reduction of Cu and 40?80 % of Zn in comparison with non-amended soils), bioconcentration factor (10?50 % of Cu and 40?80 % of Zn) and metal bioavailability in soil (40?50 % of Cu and 10?30 % of Zn) due to the high pH and the contribution of organic matter. Manure improved soil fertility and was also able to increase plant biomass (5?20 times in shoots and 3?30 times in roots), which resulted in a greater amount of metals removed from soil and accumulated in roots (increase of 2?7 times of Cu and Zn). Plants grown in pine bark treatments and in non-amended soils showed a limited biomass and high metal concentrations in shoots. Conclusions The addition of manure could be effective for the stabilization of metals and for enhancing the phytostabilization ability of B. juncea in mine soils. In this study, this species resulted to be a potential candidate for phytostabilization in combination with manure, differing from previous results, in which B. juncea had been recognized as a phytoextraction plant.

More information

Item ID: 23338
DC Identifier: http://oa.upm.es/23338/
OAI Identifier: oai:oa.upm.es:23338
DOI: 10.1007/s11104-013-1629-9
Official URL: http://link.springer.com/article/10.1007/s11104-013-1629-9
Deposited by: Memoria Investigacion
Deposited on: 25 Apr 2014 17:48
Last Modified: 19 Feb 2015 19:02
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