Effects of soil type on leaching and runoff transport of rare earth elements and phosphorous in laboratory experiments

Wang, Lingqing; Liang, Tao; Chong, Zhongyi; Zhang, Chaosheng

doi:10.1007/s11356-010-0357-4

Cited by 35 publications

(24 citation statements)

References 18 publications

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“…Similar trend was observed in the Bayan Obo ores, which indicated that the concentration and distribution of individual REE was influenced by the mining activities. The concentrations of single REEs conformed to the distribution law of odd-even numbers (Wang et al 2011). Meanwhile, there is a statistically significant correlation (R 2 > 0.89; p < 0.05) between all the elements examined.…”

Section: Descriptive Statistics Of Ree Concentrations In Soilsmentioning

confidence: 55%

“…The blank and duplicate digest were carried out in the same way. REE concentrations in the digested solutions were measured using inductively coupled plasma mass spectrometry (ICP-MS, ELAN DRC-e, Perkin Elmer SCIEX) (Wang et al 2011). The detection limit of ICP-MS is 1 ng l −1…”

Section: Sampling and Measurementmentioning

confidence: 99%

“…REEs share similar chemical and physical properties and tend to exist together naturally rather than in isolation, which explains their very similar behavior in the environment (Tyler 2004;Wang et al 2011). REEs can be divided into two groups by their atomic number and masses-light REEs (LREEs) from La to Eu and heavy REEs (HREEs) from Gd to Lu.…”

Section: Introductionmentioning

confidence: 99%

“…REEs have caused widespread concern because of their similar chemical behavior (Wang et al 2011;Liang et al 2014), their persistence and environmental behavior (Aubert et al 2002;Laveuf and Cornu 2009;Agnan et al 2014), and chronic toxicity (Brioschi et al 2013;Li et al 2013). However, there is still lack of knowledge of REE accumulation and ecological effects in soils around the rare earth mining areas.…”

Section: Introductionmentioning

confidence: 99%

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Anomalous abundance and redistribution patterns of rare earth elements in soils of a mining area in Inner Mongolia, China

Wang

Liang

2016

Environ Sci Pollut Res

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The Bayan Obo Mine, the largest rare earth element (REE) deposit ever found in the world, has been mined for nearly 60 years for iron and rare earth elements. To assess the influences of mining activities on geochemical behavior of REEs in soils, 27 surface soil samples and three soil profile samples were collected from different directions in the vicinity of the mine area. The total concentrations of REEs in surface soils varied from 149.75 to 18,891.81 mg kg −1 with an average value of 1906.12 mg kg, which was apparently higher than the average values in China (181 mg kg). The order of the average concentrations of individual REEs in surface soils was similar to that in Bayan Obo ores, which confirmed that the concentration and distribution of REEs in the soils was influenced by the mining activities. The concentrations of single REE in the soil profiles showed a similar trend with depth with an increase at 0-25 cm section, then decreased and remained relatively stable in the deep part. The normalized curves inclined to the right side, showing the conspicuous fractionation between the light and heavy REEs, which supported by the North American Shale Composite (NASC) and Post-Archean Australian Shale (PAAS) normalized concentration ratios calculated for selected elements (La N /Yb N , La N / Sm N , Gd N /Yb N ). Slight positive Ce anomaly and negative Eu anomaly were also observed.

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Section: Descriptive Statistics Of Ree Concentrations In Soilsmentioning

confidence: 55%

Section: Sampling and Measurementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Anomalous abundance and redistribution patterns of rare earth elements in soils of a mining area in Inner Mongolia, China

Wang

Liang

2016

Environ Sci Pollut Res

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“…Overall, the correspondence between simulated and field-observed deep percolation fluxes during both seasons was very good. The minor differences between simulated and observed values could be due to the lateral seepage, soil cracks, and root [34].…”

Section: Water Fluxmentioning

confidence: 91%

An Assessment of the Vertical Movement of Water in a Flooded Paddy Rice Field Experiment Using Hydrus-1D

Mo'allim

Kamal

Muhammed

et al. 2018

Water

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A quantitative estimation of the major components of the field water balance provides management decisions on how the scheme ought to be operated to ensure better distribution of irrigation water and increased delivery performance. Therefore, in this study, the water balance component in transplanted and broadcasted rice fields with conventional irrigation (flooding irrigation) in the Tanjung Karang Rice Irrigation Scheme (TAKRIS), Sawah Sempadan were observed and then modeled using Hydrus-1D numerical model during two consecutive rice growing seasons. During the off-season, irrigation water accounted for 59.6% of the total water input (irrigation + rainfall), but about 76.2% of total water input during the main season. During the main season, rainfall water only contributed to 23.8% of total water input and 40.4% during the off-season. Drainage water accounted for 37.3% of the total water input during the off-season and 43.7% during the main season, respectively, which was the main path of water losses from conventional rice fields, which indicates that maintaining a high water level and huge rainfall events during both seasons increased drainage water. Simulated ET during the off-season and the main season accounted for 38.1% and 49.5% of the total water input, respectively. Observed and simulated water percolation revealed about 17.1% to 19.2% of total water input during both seasons, respectively. Additionally, the water productivities analyzed from total water input and irrigation water were 0.43 and 0.72 kg m −3 during the off-season and 0.60 and 0.78 kg m −3 during the main season, respectively. The water productivity index evaluated from observed and modeled evapotranspiration was 1.03 and 1.13 kg m −3 during the off-season and 0.98 and 0.94 kg m −3 during the main season, respectively. The overall results revealed that Hydrus-1D simulations were a reasonable and effective tool for simulating vertical water flow in both broadcasted and transplanted rice experimental fields.

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Long‐term fertilisation causes excess supply and loss of phosphorus in purple paddy soil

Zhang

Wen

et al. 2013

J Sci Food Agric

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Effects of soil type on leaching and runoff transport of rare earth elements and phosphorous in laboratory experiments

Cited by 35 publications

References 18 publications

Anomalous abundance and redistribution patterns of rare earth elements in soils of a mining area in Inner Mongolia, China

Anomalous abundance and redistribution patterns of rare earth elements in soils of a mining area in Inner Mongolia, China

An Assessment of the Vertical Movement of Water in a Flooded Paddy Rice Field Experiment Using Hydrus-1D

Long‐term fertilisation causes excess supply and loss of phosphorus in purple paddy soil

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