Metal concentrations in oats (Avena sativa L.) grown on acid sulphate soils

Fältmarsch, Rasmus; Österholm, Peter; Greger, Maria; Åström, Mats E.

doi:10.2137/145960609788066843

Cited by 6 publications

(6 citation statements)

References 19 publications

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“…The acidity and sulphate in all fields sampled in the present study increased markedly with descending depth from 0 to 100 cm and then decreased rapidly with descending depth from 100 to 140 cm, which is a common phenomenon in ASS used for agriculture (Mathew et al 2001;Boman et al 2010). The higher pH values obtained in the plough layer are a result of leaching, liming and a relatively higher organic matter concentration (Boman et al 2008), and the decreasing soil pH in deeper layers is a feature of the ASS used for cultivation, caused by the oxidation of sulphides (Faltmarsch et al 2009).…”

Section: Discussionsupporting

confidence: 58%

Characteristics of the acidity and sulphate fractions in acid sulphate soils and their relationship with rice yield

Huang

Tang

et al. 2016

J. Agric. Sci.

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SUMMARYMost acid sulphate soils (ASSs) in the Pearl River Delta of South China have been traditionally reclaimed for rice cultivation, but the rice yield in most of these paddy fields is lower than the average rice yield in China due to extremely high soil acidity. In the present study, a range of sulphate and acidity parameters were investigated in ASS profiles in three types of paddy fields in Taishan City (Guangdong Province, China) divided based on the local rice productivity (4500, 3000 and 1500 kg/ha) using an abandoned ASS (uncultivated) as the control treatment to ascertain key yield constraining parameters. Soluble acidity (SA), exchangeable acidity (ExA), soluble sulphate (SS) and net acid-soluble sulphate (NAS) increased with increasing soil depths from 0 to 100 cm and then decreased abruptly with further increases in the depth. However, the depth distribution of exchangeable sulphate (ES) was uniform. The soil acidity and sulphate contents differed significantly in three sampled paddy fields. The values of SA and SS in the soils at depths of 0–100 cm in the studied ASS were lower compared with those in the uncultivated ASS and the ExA in soils at depths of 0–40 cm in ASS were lower compared with those observed in the uncultivated ASS. A correlation analysis revealed that SA was strongly correlated with SS and ExA with NAS. Soluble acidity, ExA, SS and NAS in the ASS were significantly associated with rice yield. Exchangeable acidity in the plough layer (0–20 cm) of soils was the most sensitive indicator of soil quality affecting rice yield among those in soils from 0 to 140 cm depth. It is interesting to note that SA, SS and NAS were more sensitive indicators of soil quality affecting rice yield at 60–100 cm than at 0–40 cm depth. Principal component analysis showed that pH value, ExA and ES in soils at depths of 0–40 cm and SA, SS and NAS in soils at depths of 60–100 cm constituted the critical soil acidity and sulphate characteristics that were strongly correlated with rice yields. This finding implies that controlling the ExA in the plough layer and the SA and NAS in the Jarosite layer should be the major focus of studies aimed at the amelioration of ASSs.

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Section: Discussionsupporting

confidence: 58%

Characteristics of the acidity and sulphate fractions in acid sulphate soils and their relationship with rice yield

Huang

Tang

et al. 2016

J. Agric. Sci.

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“…2). This is consistent with an earlier study showing generally similar mean micronutrient concentrations in oat grains cultivated on five AS soils, but clearly enriched contents in oats in one of these fields as compared to the FAV (Fältmarsch et al, 2009). The concentrations of Ni and Mn in cabbage were not correlated to those in the topsoil of F1-F3 and lower than those of the FAV (Fig.…”

Section: Cobalt Nickel Zinc and Manganesesupporting

confidence: 92%

“…Our present knowledge on the chemical com-position of AS soil-grown crops is mainly based on a few publications (Palko, 1986;Yli-Halla and Palko, 1987) only, which showed significantly elevated concentrations of a number of metals in timothy grass and oat grains. However, a recent study showed that the metal concentrations in oats grown on AS soils were not in general elevated compared with average values on other soils (Fältmarsch et al, 2009), although anomalous concentrations were observed in one of the studied AS soils. The lack of sufficient information on metal concentrations in crops and vegetables grown on AS soils is thus evident.…”

Section: Introductionmentioning

confidence: 62%

Chemical composition of cabbage (Brassica oleracea L. var. capitata) grown on acid sulfate soils

Fältmarsch

Österholm

Jacks

2010

Z. Pflanzenernähr. Bodenk.

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The purpose of this study was to investigate the influence of soil geochemistry on the concentrations of Ca, K, Mg, P, Co, Ni, Zn, Mn, Cu, and Fe in cabbage (Brassica oleracea L. var. capitata) grown on acid sulfate (AS) soils in Western Finland. A total of 11 topsoil (0-20 cm) and corresponding cabbage samples and three whole-soil profiles (≈ 0-260 cm) were collected on three agricultural fields. The concentrations of Co and Zn in cabbage were correlated with the NH 4 Acextractable (easily available) concentrations in the topsoil, indicating that the uptake of these elements in cabbage is largely governed by soil geochemistry. Yet, the concentrations of Co and Zn in cabbage were not in general elevated relative to that of Finnish average values, although some AS soils showed enriched concentrations of these metals in the soil and cabbage. Significant geochemical differences (e.g., oxidation depth, organic-matter and S content, pH) were observed among the studied AS soils, while, on the other hand, the concentrations of Ca, K, Mg, P, Ni, Mn, Cu, and Fe in cabbage were relatively similar. The hydroxylamine-extractable concentrations of these elements in the topsoil were not correlated to those in cabbage, suggesting that uptake is not governed by the oxide-bound fraction of these elements in the soil. Similarly, the easily available concentrations of Ca, P, Ni, Mn, Cu, and Fe in the topsoil were not correlated to those in cabbage, indicating that uptake is independent of the easily available concentrations in the soil. Hence, it is suggested that cabbage can regulate and thus optimize its concentrations of Ca, P, Ni, Mn, Cu, and Fe. Oxidation depth affected neither the easily available concentrations of Co, Ni, Zn, and Mn in the topsoil nor the concentrations in cabbage. However, the subsoil with a lower oxidation depth, which is to a smaller extent affected by leaching, may partly be enriched in these metals. Nevertheless, these showed no increased concentrations in cabbage. Based on these findings, it is suggested that the large amounts of metals mobilized in AS soils are easily lost to drains, subsequently contaminating nearby waterways and estuaries whereas they are only partly enriched in cabbage and other previously studied crops (oat).

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“…The acid sulfate soils are, in contrast to the black shale soils, developed in soft sediments deposited in brackish or saline waters (mostly during Holocene) and containing disseminated sulfides produced by seawater sulfate reduction (Boman et al 2008). The two soil types thus have different direct origins and sulfur sources, but like the black shale soils, the acid sulfate soils have a chemistry dominated by sulfide oxidation, metal release, and acidification (Å ström 1998; Burton et al 2006a) and thus behave, in an environmental context, in a manner similar to the black shale soils (Macdonald et al 2007;Burton et al 2006b;Fältmarsch et al 2008Fältmarsch et al , 2009Boman et al 2010). Because both soil types are characterized by high contents of easily mobilized metals, the soil layers and downstream waters are all characterized by acidification and metal loadings (Å ström and Björklund 1995;Nordmyr et al 2008;Å ström et al 2010).…”

Section: Risks Associated With Metal-rich Soilsmentioning

confidence: 99%

Effect of weathering on abundance and release of potentially toxic elements in soils developed on Lower Cambrian black shales, P. R. China

Peng

Peltola

et al. 2011

Environ Geochem Health

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This paper examines the geochemical features of 8 soil profiles developed on metalliferous black shales distributed in the central parts of the South China black shale horizon. The concentrations of 21 trace elements and 8 major elements were determined using ICP-MS and XRF, respectively, and weathering intensity (W) was calculated according to a new technique recently proposed in the literature. The data showed that the black shale soils inherited a heterogeneous geochemical character from their parent materials. A partial least square regression model and EF(bedrock) (enrichment factor normalized to underlying bedrock) indicated that W was not a major control in the redistribution of trace metals. Barium, Sn, Cu, V, and U tended to be leached in the upper soil horizons and trapped by Al and Fe oxides, whereas Sb, Cd, and Mo with negative EF values across the whole profiles may have been leached out during the first stage of pedogenesis (mainly weathering of black shale). Compared with the Chinese average soils, the soils were strongly enriched in the potentially toxic metals Mo, Cd, Sb, Sn, U, V, Cu, and Ba, among which the 5 first listed were enriched to the highest degrees. Elevated concentrations of these toxic metals can have a long-term negative effect on human health, in particular, the soils in mining areas dominated by strongly acidic conditions. As a whole, the black shale soils have much in common with acid sulfate soils. Therefore, black shale soils together with acid sulfate soils deserve more attention in the context of metal exposure and human health.

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Metal concentrations in oats (Avena sativa L.) grown on acid sulphate soils

Cited by 6 publications

References 19 publications

Characteristics of the acidity and sulphate fractions in acid sulphate soils and their relationship with rice yield

Characteristics of the acidity and sulphate fractions in acid sulphate soils and their relationship with rice yield

Chemical composition of cabbage (Brassica oleracea L. var. capitata) grown on acid sulfate soils

Effect of weathering on abundance and release of potentially toxic elements in soils developed on Lower Cambrian black shales, P. R. China

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