Capacidad fitorremediadora de cinco especies altoandinas de suelos contaminados con metales pesados

Jara-Peña, Enoc; Gómez, José; Terreros, Haydeé Montoya; Chanco, Magda; Mariano, Mauro; Cano, Noema

doi:10.15381/rpb.v21i2.9817

Cited by 9 publications

(8 citation statements)

References 31 publications

(25 reference statements)

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“…This capacity is reflected in our results for phytoremediation of the average soil samples with the Sarcocornia neei species, with 99.8% effectiveness being achieved for Pb remediation. The remediation percentage we obtained is significantly higher than that achieved in relevant other studies [ 43 ] and with Jara-Peña [ 44 ], obtaining 60% Pb in accumulator plants in the first year of treatment.…”

Section: Resultscontrasting

confidence: 77%

Pb-Contaminated Soil from Quintero-Ventanas, Chile: Remediation Using Sarcocornia neei

Meza-Ramírez

Espinoza-Ortiz

Ramírez-Verdugo

et al. 2021

The Scientific World Journal

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A phytoremediation process for lead (Pb) under laboratory conditions on contaminated soil from the Puchuncaví commune, Valparaíso Province, Chile, was carried out. It analyzed the phytoremediation potential of Sarcocornia neei (Lag.) M.A. Alonso and M.B. Crespo. The plants were propagated beforehand and extracted from the El Yali wetland, a RAMSAR 878 site in Valparaíso. Soil fertility and heavy metal concentration analyses of composite samples were conducted, complying with established protocols and standard methodology for chemical and metal analyses. These analyses were conducted in the Soil Analysis Laboratory of the Pontificia Universidad Católica de Valparaíso. The aim was to analyse not only the tissue of plants from both areas but also the soil to identify the changes in different conditions in which the plants live. To determine the type of inferential analysis to be performed, a normality test was applied; however, it was deemed unsuitable, and therefore, the contrasts were developed using nonparametric tests, particularly Wilcoxon. R project software was used in the tests, especially the RCommander package, together with the Jamovi free-license statistical spreadsheet application. The analyses results of the soil samples indicated high concentrations of heavy metals, predominantly Pb at a concentration of 77.97 mg/kg, acidic soil indicated by pH between 5.77 and 6.38, low levels of electrical conductivity, and the presence of organic matter. A phytoremediation efficiency of 99% on soil samples was achieved. Preliminary results were compared against international regulations on the concentration of metals in soil. The histological sections showed that individual plants probably adapted to their environmental conditions.

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Section: Resultscontrasting

confidence: 77%

Pb-Contaminated Soil from Quintero-Ventanas, Chile: Remediation Using Sarcocornia neei

Meza-Ramírez

Espinoza-Ortiz

Ramírez-Verdugo

et al. 2021

The Scientific World Journal

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“…Likewise, the analysis of the oligo-nutrients showed that both T1 and TR1 and TP1 are def icient in Mn; this is a factor that should be considered since it can occur chlorosis in the plants cultivated in the remediated soils. Moreover, after the treatment and weathering process, signif icant def iciencies were also found in Cu and Zn, in this sense, Marrero-Coto et al (2012) and Jara-Peña et al (2014) indicate that the def iciency in these metals, concomitant to high pH values, influence the yield of some crops.…”

Section: Resultsmentioning

confidence: 95%

Changes in restored soils subject to weathering and their implication in Mexican environmental regulations

Méndez-Moreno

Garza-Rodríguez

Torres-Sánchez

et al. 2021

Terra

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An overview of current Mexican legislation regarding soil restoration and updating needs is made through the analysis of three case studies located in the southeastern México: a) soil affected by spillage of congenital waters (Zone 1), b) soil contaminated by hydrocarbons (Zone 2) and, c) a site adjacent to urban infrastructure (Zone 3). It was performed a comparative analysis of the soils conditions in the short and long term after the anthropogenic impact and restoration process that were carried out in each studied location. It was found that important properties of the soils do not recover after the weathering process, for instance in Zone 1, DR and DA as well as %Po did not reach equivalent values to the control sample and the soil texture is different even after a long recovery period. For Zone 2, it was detected important variations in the concentration of Ca, Na and K in both the impacted and recovered soils which affect the growth of plantations. In Zone 3, there were found signif icative differences in DA, %Po; %L, %R, %MO and CEC parameters. The current normative considers general aspects, but does not contemplate the actual site situation, there is an information gap due to this, although it was observed achievement of physical and chemical properties for the recovery soil use in each site, it was also noticed that the evaluations do not consider if these properties can change over time due to weather conditions, therefore, they could influence the success of each restoration process in the long term. The information generated can be used to make decisions about government rescue programs for the primary sector or as a starting point in the implementation of Environmental Bases Lines (LBA) for the hydrocarbon sector.

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“…La presencia de altas concentraciones de cromo ocasiona daños morfológicos observables en las plantas, entre ellos, reducción en la producción de biomasa relacionada con la baja elongación de tallos y pérdida de hojas (Jara-Peña et al, 2014).…”

Section: Bioconcentración De Cromounclassified

Potencial de Zantedeschia aethiopica L. para la rehabilitación de suelos contaminados con cromo hexavalente en zonas alto andinas de Ecuador

et al. 2019

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Zantedeschia aethiopica L. (Lirio de agua) es una planta vascular ornamental, protectora de humedales y sistemas fluviales con alta distribución en la zona Andina del Ecuador. El objetivo de este trabajo fue evaluar el efecto tóxico del cromo VI (Cr+6) en esta planta, reconociendo sus limitaciones como bioindicadora, para lo cual se determinaron los efectos fisiológicos específicos y no específicos, entre ellos: germinación relativa de semillas (GRS), elongación radicular relativa (ERR) e índice de germinación, en unidades experimentales consistentes en concentraciones de 0, 50, 100, 200 y 300 mg/kg de Cr+6 durante 168 h. Las observaciones fueron realizadas durante 20 semanas en la etapa de germinación en plantas cultivadas en suelo contaminado en condiciones semicontroladas de temperatura, humedad y capacidad de campo. Para determinar el Factor de Bioconcentración (FBC), en poscosecha se utilizaron los índices de traslocación (IT) como concentraciones del metal en la parte aérea de la planta (tallo, hojas y flores) y en el suelo. Los resultados mostraron toxicidad similar de Cr+6 en concentraciones de 100, 200 y 300 mg/kg en la etapa de germinación y con efectos fisiológicos no específicos en el crecimiento de la planta en concentraciones de 200 y 300 mg/kg presentando ausencia de floración, enanismo y marchitamiento. Los resultados mostraron un límite CL50 de 118.96 mg/kg-de Cr+6 en el cual la planta es una especie bioacumuladora y bioindicadora de este metal.

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Capacidad fitorremediadora de cinco especies altoandinas de suelos contaminados con metales pesados

Cited by 9 publications

References 31 publications

Pb-Contaminated Soil from Quintero-Ventanas, Chile: Remediation Using Sarcocornia neei

Pb-Contaminated Soil from Quintero-Ventanas, Chile: Remediation Using Sarcocornia neei

Changes in restored soils subject to weathering and their implication in Mexican environmental regulations

Potencial de Zantedeschia aethiopica L. para la rehabilitación de suelos contaminados con cromo hexavalente en zonas alto andinas de Ecuador

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