Effects of soluble humic acids on the uptake of heavy metals by Vetiveria zizanioides (L.) Nash in contaminated mining soils

Fernandez Alonso, Maria Jose and Pérez Esteban, Javier and Masaguer Rodríguez, Alberto and Moliner Aramendia, Ana María (2012). Effects of soluble humic acids on the uptake of heavy metals by Vetiveria zizanioides (L.) Nash in contaminated mining soils. In: "4th International Congress EUROSOIL 2012", 02/07/2012 - 06/07/2012, Bari, Italia. p. 1.

Description

Title: Effects of soluble humic acids on the uptake of heavy metals by Vetiveria zizanioides (L.) Nash in contaminated mining soils
Author/s:
  • Fernandez Alonso, Maria Jose
  • Pérez Esteban, Javier
  • Masaguer Rodríguez, Alberto
  • Moliner Aramendia, Ana María
Item Type: Presentation at Congress or Conference (Article)
Event Title: 4th International Congress EUROSOIL 2012
Event Dates: 02/07/2012 - 06/07/2012
Event Location: Bari, Italia
Title of Book: 4th International Congress EUROSOIL 2012: Actas
Date: 2012
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

In the past, mining wastes were left wherever they might lie in the surroundings of the mine area. Unfortunately, inactive and abandoned mines continue to pollute our environment, reason why these sites should be restored with minimum impact. Phytoextraction is an environmental-friendly and cost-effective technology less harmful than traditional methods that uses metal hyperaccumulator or at least tolerant plants to extract heavy metals from polluted soils. One disadvantage of hyperaccumulator species is their slow growth rate and low biomass production. Vetiveria zizanioides (L.) Nash, perennial species adapted to Mediterranean climate has a strong root system which can reach up to 3 m deep, is fast growing, and can survive in sites with high metal levels (Chen et al., 2004). Due to the fact that metals in abandoned mine tailings become strongly bonded to soil solids, humic acids used as chelating agents could increase metal bioavailability (Evangelou et al., 2004; Wilde et al., 2005) and thereby promote higher accumulation in the harvestable parts of the plant. The objective of this study was to examine the performance of humic acid assisted phytoextraction using Vetiveria zizanioides (L.) Nash in heavy metals contaminated soils.

More information

Item ID: 33552
DC Identifier: http://oa.upm.es/33552/
OAI Identifier: oai:oa.upm.es:33552
Deposited by: Memoria Investigacion
Deposited on: 22 Jan 2015 15:08
Last Modified: 22 Jan 2015 15:17
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