Cadmium and copper release kinetics in relation to afforestation of cultivated soil

Strobel, Bjarne W.; Hansen, Hans Christian Bruun; Borggaard, Ole K.; Andersen, Martin; Raulund‐Rasmussen, Karsten

doi:10.1016/s0016-7037(00)00602-5

Cited by 76 publications

(42 citation statements)

References 43 publications

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“…This showed that the release of soil metals was controlled by the contents of total organic carbon to a great extent, and was similar to the results of Strobel, Hansen, Borggaard, Andersen, and Raulund-Rasmussen (2001) and Tipping et al (2003). Special low values of coefficient a for Cu indicated that Cu was highly associated with soil organic matter and not released into soil solution.…”

Section: Discussionsupporting

confidence: 80%

Effects of Acid Rain on Competitive Releases of Cd, Cu, and Zn from Two Natural Soils and Two Contaminated Soils in Hunan, China

Liao

Guo

Zeng

et al. 2007

Water Air Soil Pollut: Focus

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Leaching experiments of rebuilt soil columns with two simulated acid rain solutions (pH 4.6-3.8) were conducted for two natural soils and two artificial contaminated soils from Hunan, southcentral China, to study effects of acid rain on competitive releases of soil Cd, Cu, and Zn. Distilled water was used in comparison. The results showed that the total releases were Zn>Cu>Cd for the natural soils and Cd>Zn≫Cu for the contaminated soils, which reflected sensitivity of these metals to acid rain. Leached with different acid rain, about 26-76% of external Cd and 11-68% external Zn were released, but more than 99% of external Cu was adsorbed by the soils, and therefore Cu had a different sorption and desorption pattern from Cd and Zn. Metal releases were obviously correlated with releases of TOC in the leachates, which could be described as an exponential equation. Compared with the natural soils, acid rain not only led to changes in total metal contents, but also in metal fraction distributions in the contaminated soils. More acidified soils had a lower sorption capacity to metals, mostly related to soil properties such as pH, organic matter, soil particles, adsorbed SO 2À 4 , exchangeable Al

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Section: Discussionsupporting

confidence: 80%

Effects of Acid Rain on Competitive Releases of Cd, Cu, and Zn from Two Natural Soils and Two Contaminated Soils in Hunan, China

Liao

Guo

Zeng

et al. 2007

Water Air Soil Pollut: Focus

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“…Vários trabalhos relatam que a dessorção de Cd, tanto em solos quanto em óxidos sintéticos (por exemplo, goethita), diminui com o aumento do pH (Christensen 1989;Backes et al, 1995;Strobel et al, 2001). Entretanto, a comparação entre trabalhos é dificultada pela grande diversidade de soluções extratoras neles usadas [como,por exemplo,DTPA,CaCl 2 ,HCl,Ca(NO 3 ) 2 ].…”

Section: Resultsunclassified

Efeito do pH na adsorção e dessorção de cádmio em Latossolos brasileiros

Pierangeli

Guilherme

Curi

et al. 2005

Rev. Bras. Ciênc. Solo

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“…Dissolved organic carbon is the most mobile fraction of organic ligands that exist in soils and may assist in the transfer of metals through soil as organic complexes (Cao et al, 2003); greater concentrations of aromatic and phenolic compounds will produce soluble metal-organic complexes (Tapia et al, 2010;Vaca-Paulín et al, 2006). Copper mobility has been shown to increase with increasing DOC concentration and pH (Temminghof et al, 1997;Strobel et al, 2001), whilst Zhou and Wong (2001) reported that application of soluble organic carbon from sewage sludge reduced Cu sorption in soil due to development of soluble complexes, with the effect being greater at higher pH. There were no significant differences in pore water Zn and Mn concentrations compared to controls (Figs S4 and S5).…”

Section: Micronutrient Mobility and Dissolved Organic Carbonmentioning

confidence: 99%

Effects of three different biochars on aggregate stability, organic carbon mobility and micronutrient bioavailability

Hartley

Riby

Waterson

2016

Journal of Environmental Management

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Abstract. Previous studies have demonstrated both beneficial and detrimental effects on soil properties from biochar incorporation. Several biochars, with different feedstock origins, were evaluated for their effectiveness at improving soil quality of a sandy agricultural soil. A pot trial was used to investigate aggregate stability and microbial activity, pore water trace element mobility and micronutrient concentrations in grain of spring wheat after incorporation of three biochars. The feedstocks for biochar production were selected because they were established UK waste products, namely oversize woody material from green waste composting facilities, and rhododendron and soft wood material from forest clearance operations. Biochars were incorporated into the soil at a rate of 5% v/v. Aggregate stability was improved following addition of oversize biochar whilst microbial activity increased in all treatments. Dissolved organic carbon (DOC) concentrations in soil pore water from biochartreated soils were raised, whilst micronutrient concentrations in wheat grain grown in the treated soils were significantly reduced. It was concluded that incorporation of biochar to temperate agricultural soils requires caution as it may result in reductions of essential grain micronutrients required for human health, whilst the effect on aggregate stability may be linked to organic carbon functional groups on biochar surfaces and labile carbon released from the char into the soil system.

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Cadmium and copper release kinetics in relation to afforestation of cultivated soil

Cited by 76 publications

References 43 publications

Effects of Acid Rain on Competitive Releases of Cd, Cu, and Zn from Two Natural Soils and Two Contaminated Soils in Hunan, China

Effects of Acid Rain on Competitive Releases of Cd, Cu, and Zn from Two Natural Soils and Two Contaminated Soils in Hunan, China

Efeito do pH na adsorção e dessorção de cádmio em Latossolos brasileiros

Effects of three different biochars on aggregate stability, organic carbon mobility and micronutrient bioavailability

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