Uptake of soil cadmium by three field crops and its prediction by a pH-dependent Freundlich sorption model

Castilho, P. del; Chardon, W.J.

doi:10.1007/bf00010280

Cited by 24 publications

(5 citation statements)

References 7 publications

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“…It exists in soil solution mainly as Pb 2+ , but it may also occur in the Pb 4+ oxidation state. Pb availability in sediments increases as CEC increases (Del Castillo and Chardon 1995). Highly positive correlations were found between Pb and TOM,CO 3 ,CEC,clay,Cu,Cr,Zn,Co,and Cd,with r = 0.89,0.85,0.74,0.73,0.86,0.84,0.84,0.83,and 0.79,respectively.…”

Section: Lead (Pb)mentioning

confidence: 90%

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Evaluating the potential of sediments in Ziqlab Reservoir (northwest Jordan) for soil replacement and amendment

El-Radaideh

Al-Taani

Al-Momani

et al. 2014

Lake and Reservoir Management

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Citing articles: 9 View citing articles Lake and Reservoir Management, 30:32-45, 2014 C Copyright by the North American Lake Management Society 2014 ISSN: 1040-2381 print / 2151-5530 online DOI: 10.1080DOI: 10. /10402381.2013 Evaluating the potential of sediments in Ziqlab Reservoir (northwest Jordan) for soil replacement and amendment Surface sediments of Ziqlab Reservoir, northwest Jordan, were evaluated to characterize trace element distributions and sources related to various physicochemical variables. Trace element distribution is determined by texture, parent material in the catchment, and anthropogenic activities. The suitability of reservoir sediment for replacing or amending soil was assessed by comparing sediment characteristics to natural soils. Results suggest that the sandy facies can be used as artificial soils, whereas clayey facies can be utilized as fertilizer for poor quality soils in Jordan. The fine-grained sediment fraction is associated with (1) high abundance of clay minerals with high cation exchange capacity and available micronutrients; (2) occurrence of kaolinite, montmorillonite-illite, vermiculite, and smectite; and (3) optimal pH values for availability of most micronutrients. Among the trace elements measured, total nickel and cadmium slightly exceeded recommended safe levels for soils, but the high concentrations may decline when sediments are exposed to air. If removal of the bottom sediments of Ziqlab Reservoir becomes economically feasible, it would extend the reservoir lifespan, improve water quality, compensate for soil scarcity in some regions, and enhance soil productivity.Key words: bottom sediments, Jordan, soil amendment, Ziqlab Reservoir Jordan has recently experienced a rapid expansion in its agricultural sector (MoA 2004, Hamdan and Salman 2005, DoS 2009). The increase in demand for agricultural crops, triggered by rapid population growth, has led to overcropping, expansion of cultivation onto unsuitable lands, salinization, and shortening of fallow periods, thereby precluding soil recovery (Al Kuisi 1998, Al-Kharabsheh 1999, Abu-Sharar 2006, Al-Zu'bi 2007, Al Kuisi et al. 2009, Al-Taani 2011, Al-Taani et al. 2012, Al-Rawabdeh et al. 2013. These unsustainable farming practices, along with climate change and soil erosion, have reduced soil fertility, lowered crop yields per unit area of land, and in many areas resulted in severe soil degradation. Because soil degradation in Jordan is an increasing concern, it is vitally important to investigate possible remedies. * Corresponding author: taaniun@yu.edu.jo Soil degradation is loss or reduction of soil functions or uses and encompasses aspects of physical, chemical, and biological deterioration. Desertification is an extreme form of soil degradation that has occurred in many parts of the world, particularly in dry and drought-affected areas.Commercial fertilizers and other soil additives often used to improve chemical and physical properties of poor soils must be selected properly, based on soil type and climate condi...

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Section: Lead (Pb)mentioning

confidence: 90%

“…Increases in TOM and clay content increase the level of Cd binding to solid particles. The high Cd concentrations observed in the clayey textural facies (1.0-1.9 ppm) are likely attributed to the greater number of available binding sites on clay (Del Castillo and Chardon 1995).…”

Section: Cadmium (Cd)mentioning

confidence: 99%

Evaluating the potential of sediments in Ziqlab Reservoir (northwest Jordan) for soil replacement and amendment

El-Radaideh

Al-Taani

Al-Momani

et al. 2014

Lake and Reservoir Management

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“…Studies conducted on crops have shown a negative correlation between soil pH and metal uptake (Castilho and Chardon, 1995;Narwal et al, 1983). Specific studies on the pH effect on metal uptake by T. caerulescens hyperaccumulation, however, are lacking.…”

Section: Introductionmentioning

confidence: 99%

Soil pH Effects on Uptake of Cd and Zn by Thlaspi caerulescens

Wang

Angle

Chaney³

et al. 2006

Plant Soil

282

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For phytoextraction to be successful and viable in environmental remediation, strategies that can optimize plant uptake must be identified. Thlaspi caerulescens is an important hyperaccumulator of Cd and Zn, whether adjusting soil pH is an efficient way to enhance metal uptake by T. caerulescens must by clarified. This study used two soils differing in levels of Cd and Zn, which were adjusted to six different pH levels. Thlaspi caerulescens tissue metal concentrations and 0.1 M Sr(NO 3 ) 2 extractable soil metal concentrations were measured. The soluble metal form of both Cd and Zn was greatly increased with decreasing pH. Lowering pH significantly influenced plant metal uptake. For the high metal soil, highest plant biomass was at the lowest soil pH (4.74). The highest shoot metal concentration was at the second lowest pH (5.27). For low metal soil, due to low pH induced Al and Mn toxicity, both plant growth and metal uptake was greatest at intermediate pH levels. The extraordinary Cd phytoextraction ability of T. caerulescens was further demonstrated in this experiment. In the optimum pH treatments, Thlaspi caerulescens extracted 40% and 36% of total Cd in the low and high metal soils, respectively, with just one planting. Overall, decreasing pH is an effective strategy to enhance phytoextraction. But different soils had various responses to acidification treatment and a different optimum pH may exist. This pH should be identified to avoid unnecessarily extreme acidification of soils.

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“…The higher the total concentration of Cd in the soil, the higher the likelihood that Cd levels in the crop may be exceeded, although total contents in soil explain metal levels in plants only to a limited extent. In field data, soil pH and organic matter tend to be significant factors in addition to total soil Cd in explaining observed metal concentrations in spinach plants (del Castilho and Chardon, 1995;Liang et al, 2013). Both factors are negatively correlated with plant concentrations.…”

Section: Introductionmentioning

confidence: 85%

Watering regime influences Cd concentrations in cultivated spinach

Tack

2017

Journal of Environmental Management

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Uptake of soil cadmium by three field crops and its prediction by a pH-dependent Freundlich sorption model

Cited by 24 publications

References 7 publications

Evaluating the potential of sediments in Ziqlab Reservoir (northwest Jordan) for soil replacement and amendment

Evaluating the potential of sediments in Ziqlab Reservoir (northwest Jordan) for soil replacement and amendment

Soil pH Effects on Uptake of Cd and Zn by Thlaspi caerulescens

Watering regime influences Cd concentrations in cultivated spinach

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