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.

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Table 1. Selenite and selenate soil speciation with standard deviations for...
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Field	Value
Tags	reclaimed phosphate mine soils
Modified	2022-09-27
Release Date	2018-09-12
Identifier	22ba4861-caae-4509-be51-ce9da0d9147e
Spatial / Geographical Coverage Area	POLYGON ((-111.42982006073 42.798360699606, -111.54517650604 42.754008157712, -111.49161815643 42.694485578281, -111.38587474823 42.736863440962))
Publisher	Plant and Soil
Spatial / Geographical Coverage Location	Soda Springs, Southeastern Idaho, USA
License	Creative Commons Attribution
Contact Name	Favorito, Jessica E.
Contact Email	jfavorit@vt.edu
Public Access Level	Public
Program Code	005:040 - Department of Agriculture - National Research
Bureau Code	005:18 - Agricultural Research Service

Extended Metadata:

Field	Value
Authors	Favorito, Jessica E. (Scopus Author ID) Eick, Matthew J. (Scopus Author ID) Grossl, Paul R. (Scopus Author ID) Davis, Thomas Z. (Scopus Author ID)
Peer Reviewed	No
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.
Funding Sources	Agricultural Research Service A26232
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(1-2), 541-555. https://doi.org/10.1007/s11104-017-3299-5 AgID: 5805312
Dataset DOI (digital object identifier)	10.1007/s11104-017-3299-5
Product Type	Dataset
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

Field	Value
ISO Topic(s)	biota environment farming
State or Territory	Idaho
National Agricultural Library Thesaurus Term	selenium vegetation toxicity livestock grazing Idaho soil sampling phosphates soil chemical properties soil physical properties soil physicochemical properties bioavailability chemical analysis selenites selenates regression analysis iron oxides geochemistry reclaimed soils mining mined soils
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

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