Behavior of REE in Geological and Biological Systems

Laul, J. C.; Weimer, W.C.

doi:10.1007/978-1-4613-3406-4_115

Cited by 11 publications

(11 citation statements)

References 2 publications

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“…The ratios between plants and SPS were about 24 to 1,114 with a tendency to an increase with a distance from the cement factory. Most of studies reported lowest ratios between the abundances of REEs in plants and soils (Laul and Weimer 1982; values from 10 −5 to 10 −4 ). This difference may be due to a very high mobility of REEs in the plant-dust-soil system during this study.…”

Section: Influence Of Dust On Plant-soil Systemmentioning

confidence: 95%

Dry Atmospheric Contribution to the Plant–Soil System Around a Cement Factory: Spatial Variations and Sources—a Case Study from Oman

Semhi

Al-Khirbash

Abdalla

et al. 2009

Water Air Soil Pollut

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The present study determines the source of dust particles and investigates their impact on the chemical compositions of plants and soils around a cement factory in Oman within a radius of 10 km of this disturbed ecosystem. A total number of nine samples of the species of plants (Rhazya stricta), nine samples of soils, and nine samples of dust were collected and analyzed for major ions and trace elements including rare earth elements (REEs). Principal component analysis applied to the major and trace element concentrations in the dust indicated the input of at least two sources to the dust in the study area: ophiolites and cement. The REE distribution in the plants and soils revealed that the most available elements to plants originated dominantly from ophiolites rather than from cement. The contribution of cement industry is significant only in the zone located at about 0.500 to 2 km around the cement factory, whereas the contribution of ophiolites increases with distance from the cement factory.

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Section: Influence Of Dust On Plant-soil Systemmentioning

confidence: 95%

Dry Atmospheric Contribution to the Plant–Soil System Around a Cement Factory: Spatial Variations and Sources—a Case Study from Oman

Semhi

Al-Khirbash

Abdalla

et al. 2009

Water Air Soil Pollut

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“…Much research on biogeochemical behaviors and the effects of REEs on the agricultural ecosystem has been conducted (Laul et al 1979, Laul & Weimer 1982Xie 1991;Wyttenbach et al 1998;Zhang & Shan 2001). The research can be roughly divided into four periods, which includes the study on efficiency of REE-based fertilizer (Wu et al 1984), practices on the employment of REE-based fertilizer (Zhang et al 1993), geochemical behaviors of REEs in ecosystems (Market & Zhang 1991;Ichihashi et al 1992;Yuan et al 2001), as well as the physiological process of enhanced yield because of REE application (Wang et al 1998).…”

Section: Introductionmentioning

confidence: 99%

Environmental biogeochemical behaviors of rare earth elements in soil–plant systems

Liang

Zhang

Wang

et al. 2005

Environ Geochem Health

121

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With the continual increase in the utilization of rare earth elements (REEs) for industrial and agricultural purposes in China, the research into the environmental biogeochemical behavior of REEs has become a pressing issue. The REEs' content in soil and various parts of wheat under different conditions in soil-plant systems were measured by INAA and ICP-MS. The results showed four aspects. (1) The mean value of total REEs in soil of China was 176.8 mg kg )1 . The mean ratio of SLREE/SHREE in soils was 8.0 and cerium accounts for 42% of the total REEs. The content of REEs in wheat seed ranged between 10 )11 and 10 )8 g g )1 , 3-4 orders of magnitude lower than that in soil. (2) The REEs contents in ryegrass, especially in roots, were significantly related to that of soil. The bioavailability of REEs in soil mainly depended on the exchangeable fraction of REEs, which was strongly affected by the physico-chemical properties of the soil. (3) Long-term foliage-dressing with Changle microfertilizer of REEs did not affect the contents and distribution patterns of REEs in soil. At the maturing stage of spring wheat, the REEs content was in the order of root > leaf >stem and crust. Compared with the control, foliage-dressing has a higher accumulation of REEs in root and leaf. However, no significant difference was found in stem and crust between the two treatments. (4) There was no significant accumulation with the soil-dressing method. When comparing controls in both foliage-and soil-dressing methods, no distinct residue of REEs in grains was found.

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“…However, there are problems associated with past studies due to the low sensitivity of analytical techniques used. Also the background values of REEs in the environment vary widely from the g/g level in soil to ng/g or sub-ng/g in plants, making the assessment and explanation difficult (Henke, 1977;Laul and Weimer, 1982;Miekeley et al, 1994). The speciation analysis of REEs would be an even more difficult task.…”

Section: Introductionmentioning

confidence: 99%

The influence of rare earth element fertilizer application on the distribution and bioaccumulation of rare earth elements in plants under field conditions

Wen

Yuan

Shan

et al. 2001

Chemical Speciation & Bioavailability

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Behavior of REE in Geological and Biological Systems

Cited by 11 publications

References 2 publications

Dry Atmospheric Contribution to the Plant–Soil System Around a Cement Factory: Spatial Variations and Sources—a Case Study from Oman

Dry Atmospheric Contribution to the Plant–Soil System Around a Cement Factory: Spatial Variations and Sources—a Case Study from Oman

Environmental biogeochemical behaviors of rare earth elements in soil–plant systems

The influence of rare earth element fertilizer application on the distribution and bioaccumulation of rare earth elements in plants under field conditions

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