Metal accumulation by plant species growing on a mine contaminated site in Mexico
| Autor: | Juan Miguel Gómez-Bernal, Francisco Martín Romero, María Aurora Armienta, Elizabeth Hernández-Álvarez, Rufino Lozano, Javier Castro-Larragoitia, Ofelia Morton-Bermea |
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| Rok vydání: | 2013 |
| Předmět: |
Global and Planetary Change
Psidium biology Jacaranda mimosifolia Cupressus Environmental engineering Soil Science chemistry.chemical_element Geology Manganese Contamination biology.organism_classification Pollution Tailings Juniperus deppeana chemistry Environmental chemistry Soil water Environmental Chemistry Earth-Surface Processes Water Science and Technology |
| Zdroj: | Environmental Earth Sciences. 71:5207-5213 |
| ISSN: | 1866-6299 1866-6280 |
| DOI: | 10.1007/s12665-013-2923-9 |
| Popis: | The present work aims to assess the efficiency of heavy metal accumulation of native species growing in contaminated soils in the mining district of Taxco, Mexico. Soil and tailing sampling was conducted in three study sites: La Concha, El Fraile, and a control site. The study localities present diverse metal concentrations with significant differences in their proportion in the geochemical fractions. Results show that species Cupressus lindleyi and Juniperus deppeana accumulate Zn and Mn in anomalous concentrations at La Concha, where Zn is present in soluble fractions. Manganese, despite not being present mostly in the soluble fraction in soils and tailings, seems to have been increased in the soluble fraction after the plant growth. In contrast, samples of the same species taken at El Fraile and in the control site, where Zn and Mn are mainly contained in the residual fraction, do not show an anomalous enrichment. Other analyzed species growing under the same contamination conditions in La Concha (Jacaranda mimosifolia and Psidium guajava) do not show anomalous concentrations. These facts confirm the Zn and Mn accumulation capacity of C. lindleyi and Ju. deppeana, which depends on their accumulation ability and on the concentration of these elements in the soluble fraction. |
| Databáze: | OpenAIRE |
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