Lime and compost promote plant re-colonization of metal-polluted, acidic soils

Autor: Rosanna Ginocchio, Alexander Neaman, Michel Mench, Christopher Ulriksen
Přispěvatelé: Pontificia Universidad Católica de Valparaíso (PUCV), Centro de Investigación Minera y Metalúrgica, Partenaires INRAE, Biodiversité, Gènes & Communautés (BioGeCo), Institut National de la Recherche Agronomique (INRA)-Université de Bordeaux (UB)
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: International Journal of Phytoremediation
International Journal of Phytoremediation, Taylor & Francis, 2012, 14 (8), pp.820-833. ⟨10.1080/15226514.2011.628716⟩
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
ISSN: 1522-6514
DOI: 10.1080/15226514.2011.628716⟩
Popis: International audience; The revegetation of soils affected by historic depositions of an industrial complex in Central Chile was studied. The plant re-colonization from the existing soil seed bank and changes in the physico-chemical properties of the soil were evaluated in field plots amended with lime and/or compost. We found that the application of lime and/or compost decreased the Cu2+ ion activity in the soil solution and the exchangeable Cu in the soil, showing an effective Cu immobilization in the topsoil. Whereas lime application had no effect on plant productivity in comparison with the unamended control, the application of compost and lime+compost increased the plant cover and aboveground biomass due to the higher nutrient availability and water-holding capacity of the compost-amended soils. Although the Cu2+ activity and the exchangeable Cu were markedly lower in the amended soils than in the unamended control, the shoot Cu concentrations of Lolium spp. and Eschscholzia californica did not differ between the treatments.
Databáze: OpenAIRE