Impact of high natural soilborne heavy metal concentrations on the mobility and phytoavailability of these elements for sugarcane

Collin, Blanche; Dœlsch, Emmanuel

doi:10.1016/j.geoderma.2010.09.013

Cited by 11 publications

(9 citation statements)

References 35 publications

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“…Indeed, these latter authors demonstrated that the natural pedogeochemical background could account for the high Cr, Cu, Ni and Zn concentrations in Réunion soils. In spite of these higher average total concentrations, the Cu and Zn NH 4 NO 3 -extractable fractions were low, which is consistent with the findings of Collin and Doelsch (2010), who demonstrated the low phytoavailability of Cu, Cr, Ni and Zn in Réunion soils. The absence of correlations between Cu and Zn total concentration in soil and Cu, Zn concentration in plants (R 2 <0.2) was thus not surprising and confirmed the low phytoavailability of these elements.…”

Section: Phytoavailability Of Si Cu and Znsupporting

confidence: 90%

“…sugarcane (stems), growing in Réunion on similar soils (Collin and Doelsch 2010). Copper concentrations in bamboo samples were higher than in sugarcane samples, with an average of 3.5±1.0 and 4.5±2.0 mg kg −1 at the stem base and tip, respectively (Table 2), whereas in sugarcane the average was 2.1±0.6 mg kg −1 .…”

Section: Origin Of Cu and Zn Variability In Bamboomentioning

confidence: 93%

“…Phytoavailable fractions of Cu and Zn were estimated using an extraction method (Collin and Doelsch 2010). After shaking 50 ml of 1 mol L −1 NH 4 NO 3 solution and 20 g dry soil sample for 2 h at 30 rpm in a room at 20±2°C, the extracts were centrifuged at 1000 g for 15 min.…”

Section: Soil Materials and Analysismentioning

confidence: 99%

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Distribution and variability of silicon, copper and zinc in different bamboo species

et al. 2011

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Aims With a high growth rate and biomass production, bamboos are frequently used for industrial applications and recently have proven to be useful for wastewater treatment. Bamboos are considered as Si accumulators and there is increasing evidence that silicon may alleviate abiotic stresses such as metal toxicity. The aim of this study was to investigate the extent of metal concentrations and possible correlations with Si concentrations in plants. Methods This study presents, for the first time, reference values for silicon (Si), copper (Cu) and zinc (Zn) concentrations in stems and leaves of various bamboo species grown under the natural pedoclimatic conditions of the island of Réunion (Indian Ocean). Results A broad range of silicon concentrations, from 0 (inferior to detection limit) to 183 mg g?1 dry matter (DM), were found in stems and leaves. Mean leaf Cu and Zn concentrations were low, i.e. 5.1 mg kg?1 DM and 15.7 mg kg?1 DM, respectively. Silicon, Cu and Zn concentrations increased over the following gradient: stem base<stem tip<leaves. Significant differences in Si, Cu and Zn contents (except Zn in the stem) were noted between bamboo species, particularly between monopodial and sympodial bamboo species, which differ in their rhizome morphology. Sympodial bamboos accumulated more Si and Cu than monopodial bamboos, in both stems and leaves, whereas sympodial bamboos accumulated less Zn in leaves than monopodial bamboos. Conclusions The findings of this study suggest that a genotypic character may be responsible for Si, Cu and Zn accumulation in bamboo. (Résumé d'auteu

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Section: Phytoavailability Of Si Cu and Znsupporting

confidence: 90%

Section: Origin Of Cu and Zn Variability In Bamboomentioning

confidence: 93%

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Distribution and variability of silicon, copper and zinc in different bamboo species

et al. 2011

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“…On the contrary, NH 4 NO 3 extractant was ineffective in determining the availability of HMs (Cd, Cr, Cu, Ni, Pb and Zn) for sugarcane [63]. Even though DTPA extraction indicated higher metal availability in sludge amended soils, it did not increase HM concentration in plant leaves, suggesting that determination of HM availability by extraction may not accurately predict phytoavailability [64].…”

Section: Phytoavailability Of Heavy Metal (Loid)s In Agricultural Soilsmentioning

confidence: 96%

Metal (Loid)s in Farmland Soils and Strategies to Reduce Bioavailability

Fayiga¹,

Nwoke²

2017

Open J Environ Biol

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High concentrations of heavy metal (loid)s (HMs) in farmland soils reduces crop yield and contaminates the food chain. Exposure to HMs in the diet results in several adverse health effects such as cancer, reproductive health problems and cardiovascular diseases. Understanding the origin and fractionation of these toxic substances will provide direction for reducing their bioavailability in contaminated farmland soils. HMs are added to farmland soils through activities such as irrigation, organic and inorganic fertilization, pest control, and mining. Weathering of parent material and atmospheric deposition can also increase the levels of HMs in the soil. Fractionation of HM contaminated soils provides information on availability of HMs such as Pb, Cd, As, Cr and Cu to soil biota and plants. Several studies have reported that Pb is mostly associated with Fe and manganese oxides (reducible fraction) while Cd is mostly associated with the most mobile fraction (exchangeable fraction). The application of organic and inorganic soil amendments such as vermiculite, zeolite, composts and crop residue to contaminated farmland soils converts HMs from the plant available fractions to the less mobile fractions. HM resistant microbes can change HMs to a less mobile fraction or less mobile oxidation state. The combination of HM resistant microbes, HM tolerant plants, and soil amendments can be used to reduce mobility of HMs in contaminated farmlands. Capsule:The mobility of heavy metal (loid)s in polluted farmland soils depends strongly on its association with soil components.

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“…The high Sb amount extracted from S4 could be explained not only by a higher total concentration but also by the highest CaCO 3 content [56]. Sb could be solubilized under the influence of soil bio-physico-chemical parameters controlling its sorption [57][58][59]. pH and CEC were already described as influent parameters of element extractability [60], retention and mobility in soils [11].…”

Section: Mobility and Phytoavailability Of Mtementioning

confidence: 96%

Use of ecotoxicity test and ecoscores to improve the management of polluted soils: case of a secondary lead smelter plant

Foucault

Durand

Tack

et al. 2013

Journal of Hazardous Materials

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in : http://oatao.univ-toulouse.fr/ Eprints ID : 11346 a b s t r a c tWith the rise of sustainable development, rehabilitation of brownfield sites located in urban areas has become a major concern. Management of contaminated soils in relation with environmental and sanitary risk concerns is therefore a strong aim needing the development of both useful tools for risk assessment and sustainable remediation techniques. For soils polluted by metals and metalloids (MTE), the criteria for landfilling are currently not based on ecotoxicological tests but on total MTE concentrations and leaching tests. In this study, the ecotoxicity of leachates from MTE polluted soils sampled from an industrial site recycling lead-acid batteries were evaluated by using both modified Escherichia coli strains with luminescence modulated by metals and normalized Daphnia magna and Alivibrio fischeri bioassays. The results were clearly related to the type of microorganisms (crustacean, different strains of bacteria) whose sensitivity varied. Ecotoxicity was also different according to sample location on the site, total concentrations and physico-chemical properties of each soil. For comparison, standard leaching tests were also performed. Potentially phytoavailable fraction of MTE in soils and physico-chemical measures were finally performed in order to highlight the mechanisms. The results demonstrated that the use of a panel of microorganisms is suitable for hazard classification of polluted soils. In addition, calculated eco-scores permit to rank the polluted soils according to their potentially of dangerousness. Influence of soil and MTE characteristics on MTE mobility and ecotoxicity was also highlighted.

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Impact of high natural soilborne heavy metal concentrations on the mobility and phytoavailability of these elements for sugarcane

Cited by 11 publications

References 35 publications

Distribution and variability of silicon, copper and zinc in different bamboo species

Distribution and variability of silicon, copper and zinc in different bamboo species

Metal (Loid)s in Farmland Soils and Strategies to Reduce Bioavailability

Use of ecotoxicity test and ecoscores to improve the management of polluted soils: case of a secondary lead smelter plant

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