Copper uptake and phytotoxicity as assessed in situ for durum wheat (Triticum turgidum durum L.) cultivated in Cu-contaminated, former vineyard soils

Michaud, Aurélia; Bravin, Matthieu; Galleguillos, Mauricio; Hinsinger, Philippe

doi:10.1007/s11104-007-9343-0

Cited by 131 publications

(105 citation statements)

References 36 publications

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“…This might be related to the method that we used for measuring Cu availability. Michaud et al (2007) have shown that in calcareous soils contaminated by Cu fungicides, water-extractable Cu varied little, compared to total soil Cu, or EDTA-extractable Cu.…”

Section: Effects Of Organic Farming On Soil Organismsmentioning

confidence: 99%

Organic viticulture and soil quality: A long-term study in Southern France

Coll

Cadre

Blanchart

et al. 2011

Applied Soil Ecology

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a b s t r a c tThe rate of conversion of conventional vineyards into organic farming is currently increasing. This results in modifications of agricultural practices such as the application of organic manure, the use of tillage or grass-cutting to control weeds and the application of natural pesticides with preventive action. One of the aims of organic farming is to preserve the environment. In this context, the objective of our work was to evaluate the long-term effects of organic viticulture on soil quality. The study was conducted in a commercial vineyard where plots which had been organically managed for 7 (Organic7), 11 (Organic11) and 17 years (Organic17) were compared to conventionally managed plots (Conventional). Soil physical and chemical parameters (bulk density, organic matter, available phosphorus, potassium and copper contents) and biological parameters (soil microbial biomass, density of nematode trophic groups and density and biomass of earthworm ecological categories) were measured. The organic farming led to an increase in soil organic matter, potassium content, soil microbial biomass, plant-feeding and fungalfeeding nematode densities. However, organic farming increased soil compaction, decreased endogeic earthworm density and did not modify the soil micro-food web evaluated by nematofauna analysis. Our study highlights the difficulty to show the benefits of organic farming on global soil quality in this particular pedoclimatic area and set of farming practices.

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Section: Effects Of Organic Farming On Soil Organismsmentioning

confidence: 99%

Organic viticulture and soil quality: A long-term study in Southern France

Coll

Cadre

Blanchart

et al. 2011

Applied Soil Ecology

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“…L'origine de cet élément dans les eaux souterraines serait le résultat des applications agricoles (engrais, pesticides et autres dérivés cuivreux : DUmESTRE et al, 1999;KOmAREK et al, 2009;miCHAUD et al, 2007). La concentration du Cu dans l'eau est influencée par la taille des grains des engrais contenant cet élément, du temps de séjour et de l'humidité de sol (PETERSEN et al, 2004).…”

Section: Métaux Lourds Dans Les Eaux De La Nappeunclassified

Bassin d'oued Serrat : terrils et rejets domestiques, reconnaissance des métaux lourds et polluants, impact sur les eaux souterraines (nord-ouest de la Tunisie)

Mlayah

Silva

Hatira

et al. 2011

rseau

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Le présent travail visait à déterminer l'impact de rejets de deux mines de fer et de phosphates sur la qualité physicochimique de l'eau d'un système aquifère alluvial (nord-ouest de la Tunisie). Des échantillons de terrils, de sols ainsi que de l'eau de puits captant la nappe ont été prélevés et analysés. Les résultats d'analyses des échantillons de terrils ont montré que cette matrice renferme des concentrations remarquables en métaux lourds (essentiellement le Cd, Cr, Pb et Zn). Ces éléments métalliques ont été également détectés à des concentrations non négligeables dans la fraction fine des sols situés en aval des rejets miniers, suite à son transport éolien et hydrique. En ce qui concerne les eaux de la nappe, il s'avère que le transport des métaux issus des terrils est totalement atténué par les éléments constituant le sous-sol. Ces eaux, de bonne qualité géochimique, sont toutefois assez contaminées en nitrates dû aux pratiques agricoles intenses et à l'absence de systèmes d'assainissement urbains.The aims of this work were to determine the impacts of releases from two iron and phosphate mines (North West Tunisia) on the physico-chemical water composition of the related alluvial aquifer system. Samples from tailings, soil and water wells were collected and analyzed. The analytical results of tailing samples showed that this matrix contains high concentrations of heavy metals (mainly Cd, Cr, Pb and Zn). These metals were also detected at significant levels in the fine soil fraction downstream from the mine waste discharge due to transport by wind and water. The heavy metal concentrations in groundwater showed that the metal transport from the tailings is completely attenuated by the soil constituents. Overall, the physic-chemical quality of the groundwater is good, except for nitrates, which are present at relatively high concentrations due to intensive agricultural practices and the absence of urban wastewater treatment plants

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“…Heavy metal contamination in soil is a major problem for the environmental quality of the world (Yoon et al 2006). Copper is an essential nutrient for plant growth at low concentrations, but excessive amounts are phytotoxic (Michaud et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Chemical fractions and phytoavailability of copper to rape grown in the polluted paddy soil

Yang

Wang

Huang

2014

Int. J. Environ. Sci. Technol.

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This paper focuses on the phytoaccumulation and translocation of copper (Cu) in rape grown in the Cupolluted paddy soil. Pot experiments were conducted in greenhouse conditions to examine the Cu availability and uptake by rape in a paddy soil. The soil was spiked with different concentrations of Cu (0, 100, 300, 500 and 1,000 mg kg -1 soil, added as CuSO 4 ) to simulate soil Cu contamination. After 8 months of growth, plant shoots, stems, pod shells and rapeseeds were harvested for analysis. The concentrations of Cu in the roots and aerial parts of the rape and available Cu in soils were then extracted and determined. Chemical fractions of Cu in the paddy soil of rape were also investigated by sequential extraction techniques. The findings showed that Cu in the clean paddy soil was mainly distributed in residual fractions. However, the most drastic increase was observed in Fe-Mn oxidesbound fractions and organic-bound fractions with increasing soil Cu concentrations. Exchangeable fractions played a more important role than other fractions in controlling the mobility and phytoavailability of Cu. Rape growth was stimulated by low concentrations of Cu, but inhibited by high concentrations. Compares to the aerial parts, the roots were more sensitive to Cu toxicity. The correlation analysis showed that Cu in exchangeable fractions made the greatest contribution on the accumulation of Cu in rapes. The factor analysis results showed that the exchangeable fractions in roots can be indicator of Cu availability. Meanwhile, the bio-concentration factors and the translocation factors of Cu in rape were determined and the results showed that Cu had lower accumulation in the edible parts of the rape.

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Copper uptake and phytotoxicity as assessed in situ for durum wheat (Triticum turgidum durum L.) cultivated in Cu-contaminated, former vineyard soils

Cited by 131 publications

References 36 publications

Organic viticulture and soil quality: A long-term study in Southern France

Organic viticulture and soil quality: A long-term study in Southern France

Bassin d'oued Serrat : terrils et rejets domestiques, reconnaissance des métaux lourds et polluants, impact sur les eaux souterraines (nord-ouest de la Tunisie)

Chemical fractions and phytoavailability of copper to rape grown in the polluted paddy soil

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