Influence of Aging on Copper Fractionation in an Acid Soil

Arias‐Estévez, Manuel; Nóvoa‐Muñoz, Juan Carlos; Pateiro, Mirian; López-Perı́ago, Eugenio

doi:10.1097/ss.0b013e31803063ab

Cited by 49 publications

(33 citation statements)

References 15 publications

(17 reference statements)

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“…those bearing young vineyards). Similar results were obtained in a recent study that assessed the variation over a period of 500 days of the copper fractions of soils spiked with the metal (Arias-Estévez et al, 2007). The high affinity of copper for organic matter in soil (Senesi et al, 1989;Ponizovsky et al, 1999) is consistent with the significance gained by the Cu OM fraction in response to anthropogenic inputs; by contrast, the Cu OM fraction is scarcely significant in the surface horizons of natural soils (Graña et al, 1991).…”

Section: Copper Fractionationsupporting

confidence: 81%

“…Such high correlations were expected since soil organic matter and non-crystalline hydrous oxides of Al and Fe are the most active components of the soils in terms of Cu retention. In this sense, Arias-Estévez et al, (2007) showed that Cu added to soil binds mainly to organic matter and non-crystalline hydrous oxides of Al and Fe. In young vineyards, where the history of Cu addition is very recent, Cu OM and Cu IA are only weakly correlated with Cu T judging by their low coefficients (r ¼ 0Á309 and r ¼ 0Á389, respectively).…”

Section: Copper Fractionationmentioning

confidence: 98%

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Changes in copper content and distribution in young, old and abandoned vineyard acid soils due to land use changes

et al. 2007

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We studied total Cu content and its distribution in 33 surface soil samples cultivated with vines for variable lengths of time in the Monterrei designation of origin (DO), located in Galicia (NW Spain). The study was focused on the influence of land use changes on soil degradation by effect of Cu accumulation and availability. Total copper concentration in soils ranged from 25 to 272 mg kg À1 . The time during which each soil was cultivated with vines was found to affect both the total concentration of copper and its distribution. The average concentration of copper in young vineyards was 64 mg kg À1, whereas those in old and abandoned vineyards were 100 and 132 mg kg À1 , respectively. Copper bound to organic matter and to amorphous inorganic colloids were greater in old and abandoned vineyards, where they accounted for 51 and 52 per cent, respectively, of total copper, than in young vineyards (39 per cent). Copper bound to crystalline Al and Fe colloids accounted for 21, 22 and 12 per cent of total Cu in old, abandoned and young vineyards respectively.The prevalence of Cu bound to the organic fraction reduces the adverse environmental effects of this metal on soil organisms and plants. However, some management practices such as organic matter addition or liming should be implemented in order to delay or avoid soil degradation in young vineyards. For abandoned vineyards, the influence of new land uses on potential Cu mobilisation necessitates careful examination.

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Section: Copper Fractionationsupporting

confidence: 81%

Section: Copper Fractionationmentioning

confidence: 98%

Changes in copper content and distribution in young, old and abandoned vineyard acid soils due to land use changes

et al. 2007

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“…The term of ''ageing'' describes the processes by which the extractability, bioavailability and toxicity of copper (Cu) added to soils decrease with time (Bruus Pedersen and van Gestel, 2001;McLaughlin, 2001;Lock and Janssen, 2003;Arias-Estevez et al, 2007;Jalali and Khanlari, 2008). This means that there is great difference in bioavailabilityytoxicity of Cu between long-term field soils and freshly spiked soils.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, sequential extraction procedures (SEP) have been widely used to study the ageing of added Cu in soils (Brady et al, 2003;Inaba and Takenaka, 2005;Lu et al, 2005;Arias-Estevez et al, 2007;Jalali and Khanlari, 2008). Especially, Ma and Uren (1998) developed a SEP to study the long-term (430 days) ageing of zinc (Zn) added to bentonite, by which combined with X-ray diffraction (XRD) they approved the diffusion of Zn ions into hexagonal cavities of bentonite.…”

Section: Introductionmentioning

confidence: 99%

Ageing of added copper in bentonite without and with humic acid

Zhou

2009

Chemical Speciation & Bioavailability

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The ageing of metals in soils plays an important role in assessing ecological risk and soil quality criteria, it therefore is necessary to understand the ageing processes. Using a sequential extraction procedure and a parabolic diffusion equation, the ageing of added copper(Cu) in bentonite without and with humic acid (HA) was investigated as a function of incubation time over one year. At the same time, the effect of pH on Cu ageing in bentonite with HA was also studied. The most labile Cu fractions (water-soluble Cu, Cu extracted by NH 4 NO 3 and EDTA) gradually transformed into less extractable forms. The modelled diffusion equation suggested that the ageing processes were controlled by surface nucleationyprecipitation and diffusion. In the presence of HA, the contribution from surface nucleationyprecipitation increased significantly, whereas that from diffusion decreased, this indicated the addition of HA significantly enhanced the short-term ageing by complexation with Cu ions, but strongly inhibited the further diffusion of Cu ions into interlayer of bentonite during long-term ageing owing to the more stable complexes formed on solid surface. With increasing pH in bentonite with HA, the apparent diffusion rate coefficient (Dyr 2 ) increased greatly, which showed that during long-term ageing pH played an important role in reducing the extractability as a result of the significant increase in residual Cu (RES-Cu), the most inert fraction, due to micropore diffusion.

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“…Copper in soils is mostly associated with organic matter (OM), Fe-and Mn-(hydr)oxides, and to a lesser extent with clay minerals through specific and non-specific adsorption (Arias-Estévez et al 2007;Nóvoa-Muñoz et al 2007). Sorption on OM by means of complexation especially with humic and fulvic acids presents possibly the most important retention mechanism for Cu in soils (if not the most important one; Strawn and Baker 2009).…”

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confidence: 99%

Long-term variability of metals from fungicides applied in amended young vineyard fields of La Rioja (Spain)

Herrero‐Hernández

Andrades

Rodríguez‐Cruz

et al. 2011

Environ Monit Assess

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The long-term variability of total Cu content from fungicides applied in a certified wine region of Spain (La Rioja) and of other metals (Cd, Cr, Ni, Pb, and Zn) was evaluated in three young vineyard soils and subsoils unamended and amended with spent mushroom substrates (SMS) over a 3-year period (2006-2008). SMS is a promising agricultural residue as an amendment to increase the soil organic matter content but may modify the behaviour of metals from pesticide utilisation in vineyards. Fresh and composted SMS was applied each year at a rate of 25 t ha(-1) (dry-weight). Copper concentrations in the three unamended soils were 21.2-88.5, 25.5-77.1, and 29.4-78.4 mg kg(-1). They exceeded natural Cu concentrations of the region and reference sub-lethal hazardous concentration for soil organism. The concentrations of Cd, Ni, Pb, and Zn were largely below the sub-lethal limits. Thus, although Cu levels were lower than those of established vineyards, vine performance, and productivity might be affected. The variation in behaviour between different amendments for each soil was high, so a generic conclusion could not be drawn. The amendment practice seemed to have caused temporarily Cu mobilization respect to untreated soils. Total zinc concentrations fall within the range of the natural soil of La Rioja and were significantly affected (p < 0.05) especially by fresh state SMS addition, with increasing up to 75% respect to untreated specimen. The results indicated a build-up of fresh sites for metal retention at both surface and subsurface level, although no accumulation of metals was observed in the short-term period. However, the benefit for soils and the negative effects need to be monitored in the long run.

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Influence of Aging on Copper Fractionation in an Acid Soil

Cited by 49 publications

References 15 publications

Changes in copper content and distribution in young, old and abandoned vineyard acid soils due to land use changes

Changes in copper content and distribution in young, old and abandoned vineyard acid soils due to land use changes

Ageing of added copper in bentonite without and with humic acid

Long-term variability of metals from fungicides applied in amended young vineyard fields of La Rioja (Spain)

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