Phytoextraction of heavy metals from mine soils using hyperaccumulator plants

Pérez Esteban, Javier and Escolástico, Consuelo and Ruiz Fernández, Juan and Masaguer Rodríguez, Alberto and Moliner Aramendia, Ana María (2010). Phytoextraction of heavy metals from mine soils using hyperaccumulator plants. "Anadolu Journal of Agricultural Sciences", v. 25 (n. 3); pp. 224-230. ISSN 1308-8750. https://doi.org/10.7161/anajas.2013.282.

Description

Title: Phytoextraction of heavy metals from mine soils using hyperaccumulator plants
Author/s:
  • Pérez Esteban, Javier
  • Escolástico, Consuelo
  • Ruiz Fernández, Juan
  • Masaguer Rodríguez, Alberto
  • Moliner Aramendia, Ana María
Item Type: Article
Título de Revista/Publicación: Anadolu Journal of Agricultural Sciences
Date: October 2010
Volume: 25
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

The aim of this work was to study some hyperaccumulator species that could be useful to decontaminate mine soils and also to investigate the bioavailability and uptake of these metals by plants with the addition of organic amendments. Pot experiments were performed with soil samples collected from two mining areas in the north of Madrid, where there was an intense mining activity more than 50 years ago. Three species (Thlaspi arvense, Brassica juncea and Atriplex halimus) were grown under controlled conditions in pots filled with contaminated soils mixed with 0 Mg, 30 Mg and 60 Mg per hectare of two different organic amendments: a commercial compost made of pine bark, peat and wood fiber and other made of horse and sheep manure and wood fiber. Plants were harvested at the end of their crop cycle and were digested in order to measure metal concentration (Zn, Cu and Cd) in roots and shoots. Highest plant metal concentration was observed in pots treated with pine bark amendment and with pure soil due to an increase in metal bioavailability with decreasing pH. Also in those treatments the total plant biomass was lower, even some plants could not germinate. On the contrary, there was a lower metal concentration in plant tissues of pots with manure because its higher pH whereas plant growth was significantly larger so there was an incresing amount of metals removed from soil by plants. Comparing the three species results indicate a higher total metal uptake in A. halimus than B. juncea and T. arvense. In conclusion, results show that pH affects metal bioavailability and uptake by hyperaccumulator plants. Addition of organic amendments could be a successful technique for stabilization of metals in contaminated soils.

More information

Item ID: 21997
DC Identifier: http://oa.upm.es/21997/
OAI Identifier: oai:oa.upm.es:21997
DOI: 10.7161/anajas.2013.282
Official URL: http://anajas.omu.edu.tr/eng/index.html
Deposited by: Memoria Investigacion
Deposited on: 05 Feb 2014 14:33
Last Modified: 22 Sep 2014 11:28
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