Simulation of retention and transport of copper, lead and zinc in a paddy soil of the Red River Delta, Vietnam

Ngoc, Minh Nguyen; Dultz, Stefan; Kasbohm, Jörn

doi:10.1016/j.agee.2008.06.008

Cited by 43 publications

(16 citation statements)

References 29 publications

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“…A slightly higher mobility was obtained for lead. Ngoc et al (2009) also found a large mobility of lead in soil. Moradi et al (2005) observed an accumulation of PTEs in soil surface layer and/or removal by surface runoff, and concluded that there is little risk of groundwater contamination by leached Cd.…”

Section: Prognostic Model Resultsmentioning

confidence: 85%

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Water flow and solute transport model of potentially toxic elements through unsaturated zone at regional wellfield Kosnica

Ružičić

Mileusnić

Posavec

et al. 2016

Hydrological Processes

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S. Ruţičić), mmileusnic@rgn.hr (M. Mileusnić), kposavec@rgn.hr (K. Posavec), znakic@rgn.hr (Z. Nakić), gdurn@rgn.hr (G. Durn), vfilipovic@agr.hr (V. Filipović).The objective of this work was to build a prognostic water flow model and potentially toxic elements (lead, cadmium, zinc) transport model in the unsaturated zone. Research was conducted in the catchment area of Kosnica regional wellfield, where the unsaturated zone is characterised by Fluvisol.Lower sorption capacities were determined in the first horizons for all three potentially toxic elements. Correlation coefficient of the measured and simulated values of tracer concentration is 0.58 for the AC horizon and 0.84 for the 2C/C1 horizon. Based on calibrated water flow and transport parameters, a prognostic water flow model and potentially toxic elements (lead, cadmium, zinc) transport model in the unsaturated zone was built. In case of an accidental spill of potentially toxic elements with concentrations of 1000 mg/L, the risk of contamination of the aquifer is present.

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Section: Prognostic Model Resultsmentioning

confidence: 85%

“…The HYDRUS software package (Šimůnek et al, 2008) has been widely used to simulate the fate and transport of PTEs in soils (Degryse and Smolders, 2006;Ngoc et al, 2009;Chotpantarat et al, 2011). HYDRUS includes mathematical modules that simulate variably saturated water flow and solute transport in porous media.…”

Section: Introductionmentioning

confidence: 99%

Water flow and solute transport model of potentially toxic elements through unsaturated zone at regional wellfield Kosnica

Ružičić

Mileusnić

Posavec

et al. 2016

Hydrological Processes

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“…It is needed to understand the differences of water and N distributions in lowland soil profiles between paddy fields under AWD and CF irrigation for better practice of AWD irrigation. HYDRUS (Simunek et al, 2008) have been widely used to analyze the multi-layer soil water flow in paddy fields for preferential flow (Dash et al, 2014;Garg et al, 2009;Sander and Gerke, 2009;Tan et al, 2014), seepage across paddy fields bunds (Janssen and Lennartz, 2009), and heavy metal transport (Nguyen Ngoc et al, 2009). However, transport and transformations of N or other decayed chemicals in paddy fields were seldom investigated by HYDRUS modeling (Patil and Das, 2013), although it was popularly used for the analysis of N transport and transformations in dry land fields cultivated with other crops, such as maize (Crevoisier et al, 2008;Ramos et al, 2011;Ramos et al, 2012), wheat (Wang et al, 2010), onion (Ajdary et al, 2007), and corn (Mailhol et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Field analysis of water and nitrogen fate in lowland paddy fields under different water managements using HYDRUS-1D

Tan

Shao

et al. 2015

Agricultural Water Management

102

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“…It has been widely reported for many agricultural regions that anthropogenic activities e.g. mining or recycling activities have led to excessive accumulation of Pb in rice (Oryza sativa L.) (Fu et al, 2008;Li et al, 2014a;Nguyen et al, 2009a;Yu et al, 2016). Pb in soil solutions can be assimilated within plants and transported, in a stepwise fashion, from root to stem, stem to leaves and leaves to grain (Udousoro et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Encapsulation of lead in rice phytoliths as a possible pollutant source in paddy soils

Nguyen

McNamara³

et al. 2019

Environmental and Experimental Botany

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However this Pb pool was relatively low (from 7.8 to 34 kg ha −1) relative to other soil Pb fractions. As the thermal treatments of Pb-tainted rice straw resulted in losses of Pb via volatilization, open-field burning practices for Pbcontaminated rice straw is suggested as an environmental risk 10 9 12 9 13 9 4.2. PhytPb in soil After harvesting rice straw is returned to the field, and in this way an amount of phytolith of ∼0.72 ton ha −1 can annually be recycled to soil. Despite the fact that soil samples were taken at the end of cropping season, when the area has not been fed from such rice residues, remarkable values for soil phytolith content were still observed. The content of soil-aged phytolith found in the 10 fields ranged from 2.6 to 8.7 g kg −1 (7.8 to 26.1 ton ha −1 , calculated for the top layer of 0-20 cm of soil, and bulk density of 1.5 g cm −3). This is significantly higher than the value for the annual recycle phytolith from rice straw, implying that the current phytolith pool is a consequence of long-term accumulation. This is in agreement with another observation for paddy soils by Wickramasinghe and Rowell (2006). It can be deduced that the accumulation of phytoliths might serve as a new sink of Pb in soil. The phytPb was found to 14 9 19 9

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Simulation of retention and transport of copper, lead and zinc in a paddy soil of the Red River Delta, Vietnam

Cited by 43 publications

References 29 publications

Water flow and solute transport model of potentially toxic elements through unsaturated zone at regional wellfield Kosnica

Water flow and solute transport model of potentially toxic elements through unsaturated zone at regional wellfield Kosnica

Field analysis of water and nitrogen fate in lowland paddy fields under different water managements using HYDRUS-1D

Encapsulation of lead in rice phytoliths as a possible pollutant source in paddy soils

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