title: Seedling emergence, growth and trace elements tolerance and accumulation by Lamiaceae species in a mine soil.
abstract: The potential use of three Laminaceae species (Lavandula dentata, Rosmarinus officinalis and Thymus vulgaris) for the phytostabilisation of a trace elements contaminated (acid) soil has been evaluated. These species were grown in mine tailing soil unamended (TS) and amended with calcium carbonate and pig manure (ATS), and unpolluted substrate for control (CT); plant growth, root characterisation, soil trace elements contents and their accumulation in plants were measured. Results indicated that seed emergence was independent from substrate characteristics, but seedlings died in TS with 40% survival in ATS. The biomass of L. dentata and T. vulgaris and root development in R. officinalis were negatively affected when grown in TS but without differences between ATS and CT. Applicating amendments reduced soil exchangeable and extractable fractions concentrations of trace elements in ATS compared with TS. The establishment of L. dentata and R. officinalis were related to trace elements immobilisation. Trace element concentrations in plants grown in tailing soils were similar to those reported for control, although applicating amendments reduced Zn accumulation in all species, and favoured increased absorption and aerial translocation of As and Pb by L. dentata and T. vulgaris; nonetheless, levels were below toxicity thresholds. Thus, these species fulfill the criteria for phytostabilisation purposes, aided by employing amendments.
authors: Sustainable Use, Management and Reclamation of Soil and Water Research Group, Universidad Politécnica de Cartagena, Paseo Alfonso XIII, 48, 30203 Cartagena, Murcia, Spain.
authors: A
authors: A
authors: Parra
authors: Sustainable Use, Management and Reclamation of Soil and Water Research Group, Universidad Politécnica de Cartagena, Paseo Alfonso XIII, 48, 30203 Cartagena, Murcia, Spain. Electronic address: raul.zornoza@upct.es.
authors: R
authors: R
authors: Zornoza
authors: Departamento de Producción Vegetal, Universidad Politécnica de Cartagena, Paseo Alfonso XIII, 48, 30203 Cartagena, Murcia, Spain.
authors: E
authors: E
authors: Conesa
authors: Sustainable Use, Management and Reclamation of Soil and Water Research Group, Universidad Politécnica de Cartagena, Paseo Alfonso XIII, 48, 30203 Cartagena, Murcia, Spain.
authors: M D
authors: MD
authors: Gómez-López
authors: Sustainable Use, Management and Reclamation of Soil and Water Research Group, Universidad Politécnica de Cartagena, Paseo Alfonso XIII, 48, 30203 Cartagena, Murcia, Spain.
authors: A
authors: A
authors: Faz
mesh_terms: D000818:Animals; D001673:Biodegradation, Environmental; D018533:Biomass; D002119:Calcium Carbonate / Q000032:analysis; D019686:Lamiaceae / Q000254:growth & development* / Q000378:metabolism; D008372:Manure / Q000032:analysis; D019216:Metals, Heavy / Q000378:metabolism*; D008906:Mining; D018517:Plant Roots / Q000254:growth & development; D036226:Seedlings / Q000254:growth & development*; D012989:Soil Pollutants / Q000378:metabolism*; D013045:Species Specificity; D013552:Swine
chemical_list: D008372:Manure; D019216:Metals, Heavy; D012989:Soil Pollutants; D002119:Calcium Carbonate
keywords: Amendments; Lamiaceae; Metal uptake; Mine tailing pond; Phytoremediation