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Data from: Selenium geochemistry in reclaimed phosphate mine soils and its relationship with plant bioavailability

Selenium accumulation in vegetation has resulted in toxicity in livestock grazing on phosphate mine soils in Southeastern Idaho. Plant and soil samples were collected from sites located near phosphate mines. Soil physicochemical properties, Se speciation, and Se distribution from a sequential extraction procedure (SEP) were examined in relation to bioavailability in the Se-hyperaccumulator, western aster (Symphyotrichum ascendens Lindl.). Selenium-hyperaccumulators are plants that can absorb over 1000 mg Se kg−1 DM (Dry Matter). Chemical analyses revealed that western aster contained Se exceeding 6000 mg kg−1 DM. Soil speciation results indicated that selenite (SeO32−) was dominant with lower levels of selenate (SeO42−) present. This was expanded using an SEP that accounted for six fractions. Regression analyses indicated a strong relationship for western aster Se and the water-soluble and phosphate-extractable SEP fractions combined (R2 = 0.85). Once carbonate, amorphous Fe-oxide, organic, and residual Se fractions were factored into the analysis, the relationship decreased. A strong relationship between selenate and the water-soluble Se fraction was also observed (R2 = 0.83). Soluble and phosphate-extractable Se were determined to be "bioavailable fractions" for western aster. Thus, simple water extractions can be used for quick assessment of Se bioavailability and provide a means to identify potentially hazardous areas locations.

Dataset Info

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FieldValue
Authors
Favorito, Jessica E.
Eick, Matthew J.
Grossl, Paul R.
Davis, Thomas Z.
Product Type
Dataset
Spatial / Geographical Coverage Area
POLYGON ((-111.42982006073 42.798360699606, -111.54517650604 42.754008157712, -111.49161815643 42.694485578281, -111.38587474823 42.736863440962))
Spatial / Geographical Coverage Location
Soda Springs, Southeastern Idaho, USA
Intended Use
To investigate soil physicochemical properties, selenium (Se) speciation, and Se distribution from a sequential extraction procedure in relation to bioavailability in the Se-hyperaccumulator, western aster and potential toxicity in livestock grazing on phosphate mine soils.
Publisher
Plant and Soil
Contact Name
Favorito, Jessica E.
Contact Email
Public Access Level
Public
Preferred Dataset Citation
Favorito, J. E., Eick, M. J., Grossl, P. R., & Davis, T. Z. (2017). Selenium geochemistry in reclaimed phosphate mine soils and its relationship with plant bioavailability. <em>Plant and Soil</em>, 418: 541-555. https://doi.org/10.1007/s11104-017-3299-5
Primary Article

Favorito, J. E., Eick, M. J., Grossl, P. R., & Davis, T. Z. (2017). Selenium geochemistry in reclaimed phosphate mine soils and its relationship with plant bioavailability. Plant and Soil, 418: 541-555.

License
Funding Source(s)
Agricultural Research Service
A26232
Dataset DOI (digital object identifier)
10.1007/s11104-017-3299-5
Program Code
005:037 - Department of Agriculture - Research and Education
Bureau Code
005:18 - Agricultural Research Service
Modified Date
2018-09-12
Release Date
2018-09-12
Ag Data Commons Keywords: 
  • Plants & Crops
  • Animals & Livestock
  • Animal health
  • Animals & Livestock
  • Agroecosystems & Environment
  • Plant and animal
  • Agroecosystems & Environment
  • Soil
  • Biogeochemistry
  • Agroecosystems & Environment
  • Soil
  • Agroecosystems & Environment
State or Territory: 
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