Response of copper concentrations and stable isotope ratios to artificial drainage in a French Retisol

Kusonwiriyawong, Charirat; Bigalke, Moritz; Cornu, Sophie; Montagne, David; Fekiacova, Zuzana; Lazarov, Marina; Wilcke, Wolfgang

doi:10.1016/j.geoderma.2017.04.003

Cited by 12 publications

(10 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Two European Reference Materials (ERM by the European Commission) standards (Cu nitrate solutions), ERM-AE-633 and ERM-AE-647 were recently proposed as new international standards (Moeller et al, 2012). The advantage of the ERM-AE-633 standard is that it has almost the same δ-value as the NIST-976 [variations of ±0.01 were reported by Moeller et al 2012, Šillerová et al (2017), Kříbek et al (2018)] and it was proposed that no conversion between δ-values reported relative to AE-633 is necessary (Peréz Rodríguez et al, 2013;Kusonwiriyawong et al, 2017). We report all δ-values relative to the NIST-976 standard and use the following conversion values: Moeller et al, 2012) Isotope Ratio Determinations of Cu, Zn, and Pb…”

Section: International Reference Standards and Standard Conversionmentioning

confidence: 99%

A Global Assessment of Copper, Zinc, and Lead Isotopes in Mineral Dust Sources and Aerosols

et al. 2020

View full text Add to dashboard Cite

The stable isotope compositions of Cu and Zn in major geochemical reservoirs are increasingly studied with the aim to develop these isotope systems as tools to investigate the global biogeochemical cycles of these trace metals. The objectives of the present study were (i) to expand the range of Cu, Zn, and Pb isotope compositions of mineral dust by analyzing samples from major mineral dust sources in Asia and Africa (Chinese Loess Plateau, Chinese deserts, Thar desert, Sahel region) and (ii) to assess the potential impact of human activities on the isotope composition of aerosols by synthesizing published Cu and Zn isotope compositions in aerosols and natural and anthropogenic sources. For the newly analyzed mineral dust areas in Asia and Africa, δ 65 Cu NIST−976 values range from −0.54 to +0.52‰, δ 66 Zn JMC−Lyon values from −0.07 to +0.57‰, and 206 Pb/ 204 Pb values from 18.522 to 19.696. We find a significant geographic control with samples from the Thar Desert having the heaviest isotopic compositions (δ 65 Cu NIST−976 = +0.48 ± 0.06‰, δ 66 Zn JMC−Lyon = +0.49 ± 0.11‰) and samples from the Sahel and the Badain Jaran desert having the lightest Zn isotope composition (δ 66 Zn JMC−Lyon = +0.19 ± 0.15‰ and +0.07 ± 0.07‰, respectively). We find important variations in the isotope signatures between particle size fractions with heavier isotopic compositions in the smallest and largest particle size fractions and lighter isotopic compositions in the mid particle size fractions. Associations with the mineralogical composition are less clear. Newly analyzed aerosol samples for Beijing and Xi'an show δ 65 Cu NIST−976 values of +0.29 ± 0.19‰ and +0.16 ± 0.04‰, δ 66 Zn JMC−Lyon values of −0.36 ± 0.04‰ and +0.02 ± 0.06‰, and 206 Pb/ 204 Pb values of 18.129 ± 0.003 and 18.031 ± 0.003, respectively. Based on a synthesis of published and novel data, we suggest improved ranges and mean values for the isotopic composition of mineral dust from selected locations in Asia and Africa and of anthropogenic sources such as non-exhaust traffic emissions, combustion, electroplating and galvanization. This should serve as a valuable reference for future studies using these isotope systems. This paper demonstrates univocally that human activity introduces a wide range of Zn isotope compositions into the atmospheric environment and, thus, impacts the biogeochemical cycle of Zn.

show abstract

Section: International Reference Standards and Standard Conversionmentioning

confidence: 99%

A Global Assessment of Copper, Zinc, and Lead Isotopes in Mineral Dust Sources and Aerosols

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Gleysol is typically characterized by the reduction and leaching of Fe‐bearing or Mn‐bearing minerals (i.e., lepidocrocite, goethite, and birnessite). The light Cu isotopes in Gleysol may be due to (a) oxidative dissolution of Fe‐bearing minerals, along with the preferential release of Cu (II) and heavy Cu isotopes into soil solutions; and (b) incorporation of Cu (II) into the structure of secondary Fe‐bearing minerals by substituting Cu for Fe (III) with a similar ionic radius, and preferential isotopically light Cu into precipitating Fe‐Al oxides (Kusonwiriyawong et al., 2017; Little et al., 2019; S. A. Liu et al., 2014; X. Liu et al., 2015). Conversely, Cu (II) in Fe‐bearing minerals can be reduced to Cu (I) under reducing conditions and leached into the soil solution, resulting in heavy Cu isotopes in soils (Babcsanyi et al., 2014; Kusonwiriyawong et al., 2016).…”

Section: Discussionmentioning

confidence: 99%

“…Due to the relatively strong bond strength between SOM and 65 Cu, organic complexes preferentially retain heavy Cu isotopes (Bigalke, Weyer, Kobza, & Wilcke, 2010; Pokrovsky et al., 2008; Ryan et al., 2014). Cu isotopes in groundwater can enrich heavy Cu isotopes, which may partly re‐sorb or re‐precipitate in soil residues as the groundwater level changes during the seasonal exchange (Kusonwiriyawong et al., 2017; Wang et al., 2022). In this study, the correlation analyses demonstrate that the δ 65 Cu value is independent of SOC in the upper part of S1 and S2 (>1 m), while the correlation with SOC ( R 2 = 0.80) in the zone of <1 m is generally stronger than that of Zones I, II, and III in S1 (Figure 9).…”

Section: Discussionmentioning

confidence: 99%

“…In a natural environment, Mn micronodules and paired Mn nodules in sediment also exhibited lighter δ 65 Cu values and δ 56 Fe values when compared with porewater and seawater (Dekov et al, 2021). In MRB, Yang et al ( 2021) also identified that Fe isotope fractionation Bigalke, Weyer, Kobza, & Wilcke, 2010;Bigalke et al, 2011Bigalke et al, , 2013Bigalke et al, , 2018Dotor-Almazan et al, 2017;Fekiacova et al, 2015;Kusonwiriyawong et al, 2017;Mihaljevic et al, 2019;Vance et al, 2016).…”

Section: Effect Of Mn Oxidesmentioning

confidence: 98%

See 1 more Smart Citation

Extreme Copper Isotope Fractionation Driven by Redox Oscillation During Gleysols Weathering in Mun River Basin, Northeast Thailand

et al. 2023

View full text Add to dashboard Cite

Copper (Cu), a key nutrient for plants and humans, is ubiquitously involved in redox reactions in terrestrial ecosystems, and the biogeochemical behavior and isotope fractionation of Cu are controlled by redoximorphic conditions (Kumar et al., 2021). Gleysols that are formed in response to water-level fluctuations are recognized as redoximorphic soils, and play a crucial role in controlling the terrestrial biogeochemical behaviors of Cu (Fekiacova et al., 2015;Tabor et al., 2017). Under redox fluctuation, Fe/Mn oxyhydroxides and soil organic Abstract Copper (Cu) isotopes are utilized to track Cu geochemical cycling in weathered gleysols of tropical zones. A significant isotope fractionation of Cu in these soils is primarily redox-controlled; however, it is rarely reported how the frequency of redox fluctuations affects the soil Cu isotope signature. This study investigated the variations of Cu content and isotope fractionation in two low-humic gleysol profiles (S1 and S2) from a dry tropical savanna zone. Owing to redox oscillation during weathering, δ 65 Cu values in profile S2 showed a stronger positive correlation with the mafic index of alteration of reducing environment than S1, and isotopically light Cu is more retained in the Zone II of profile S2 than S1. As the frequency of redox fluctuation increased, the retained stable Cu(I) species and light Cu isotopes increased in the residual soils through re-adsorption or re-precipitation by iron oxyhydroxide (i.e., ferrihydrite). Importantly, an Mn-enriched zone was formed after reduction events in profile S2, and found to be enriched in light Cu isotopes. The heavier Cu fraction might be lost by adsorption on Fe oxyhydroxides in the Mn-rich zone, while the relatively light Cu might be retained through adsorption on Mn oxyhydroxides. Additionally, a significant Soil Organic Carbon (SOC) contribution to Cu was found due to the high δ 65 Cu-SOC correlation (R 2 = 0.80) in S1 (depth <1 m). Therefore, our study shows that the Cu isotope signature can respond to redox changes in the terrestrial ecosystem, and these Cu isotope signatures may have significant implications for assessing soil ecological vulnerability under future climate change scenarios.

show abstract

“…Meanwhile, isotope ratios of Cu have been used to trace Cu dynamics in soils ( Bigalke et al, 2010b ; Fekiacova et al, 2015 ; Babcsányi et al, 2016 ; Vance et al, 2016 ; Kusonwiriyawong et al, 2017 ; Blotevogel et al, 2018 ) and plants ( Weinstein et al, 2011 ; Jouvin et al, 2012 ; Ryan et al, 2013 ; Li et al, 2016 ; Blotevogel et al, 2019 ). While soil processes regulating Cu mobility and speciation, as complexation with organic ligands, redox reactions, and mineral dissolution, induce limited Cu-isotopic fractionation (<1‰), Cu uptake and translocation in plants have been observed to cause large fractionations up to −1.43‰ ( Bigalke et al, 2010a ; Weinstein et al, 2011 ; Jouvin et al, 2012 ; Mathur et al, 2012 ; Ryan et al, 2013 ; Babcsányi et al, 2016 ; Li et al, 2016 ; Blotevogel et al, 2018 , 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Stable Cu Isotope Ratios Show Changes in Cu Uptake and Transport Mechanisms in Vitis vinifera Due to High Cu Exposure

et al. 2022

View full text Add to dashboard Cite

Even though copper (Cu) is an essential plant nutrient, it can become toxic under certain conditions. Toxic effects do not only depend on soil Cu content, but also on environmental and physiological factors, that are not well understood. In this study, the mechanisms of Cu bioavailability and the homeostasis of Vitis vinifera L. cv. Tannat were investigated under controlled conditions, using stable Cu isotope analysis. We measured Cu concentrations and δ65Cu isotope ratios in soils, soil solutions, roots, and leaves of grapevine plants grown on six different vineyard soils, in a 16-week greenhouse experiment. The mobility of Cu in the soil solutions was controlled by the solubility of soil organic matter. No direct relationship between Cu contents in soils or soil solutions and Cu contents in roots could be established, indicating a partly homeostatic control of Cu uptake. Isotope fractionation between soil solutions and roots shifted from light to heavy with increasing Cu exposure, in line with a shift from active to passive uptake. Passive uptake appears to exceed active uptake for soil solution concentrations higher than 270 μg L–1. Isotope fractionation between roots and leaves was increasingly negative with increasing root Cu contents, even though the leaf Cu contents did not differ significantly. Our results suggest that Cu isotope analysis is a sensitive tool to monitor differences in Cu uptake and translocation pathways even before differences in tissue contents can be observed.

show abstract

Response of copper concentrations and stable isotope ratios to artificial drainage in a French Retisol

Cited by 12 publications

References 47 publications

A Global Assessment of Copper, Zinc, and Lead Isotopes in Mineral Dust Sources and Aerosols

A Global Assessment of Copper, Zinc, and Lead Isotopes in Mineral Dust Sources and Aerosols

Extreme Copper Isotope Fractionation Driven by Redox Oscillation During Gleysols Weathering in Mun River Basin, Northeast Thailand

Stable Cu Isotope Ratios Show Changes in Cu Uptake and Transport Mechanisms in Vitis vinifera Due to High Cu Exposure

Contact Info

Product

Resources

About