Occurrence of some rare earth elements in vineyard soils under semiarid Mediterranean environment
- PMID: 35389127
- PMCID: PMC8989820
- DOI: 10.1007/s10661-022-09956-z
Occurrence of some rare earth elements in vineyard soils under semiarid Mediterranean environment
Abstract
A comprehensive investigation has been carried out into the concentrations of a range of REEs (neodymium Nd, cerium Ce, lanthanum La, yttrium Y, scandium Sc) in soils of vineyards belonging to the protected denomination of origin (PDO) Valdepeñas (Central Spain). The mean concentrations (expressed in mg kg-1) are Ce 70.6, Nd 32.9, La 36.2, Y 21.6, and Sc 13.7 in surface horizons (Ap), while in subsurface horizons (Bt or Bw and some Ck), the values are Ce 67.6, Nd 31.8, La 34.4, Y 19.6, and Sc 13.9. The relative abundance in these soils is Ce > La > Nd > Y > Sc in both the surface and subsurface horizons. These values are close to, or slightly higher than, the regional levels but similar to national and global averages, although relatively high values have been detected at certain sampling points. Another aim was to explain the spatial variations in these elements within the territory under study. It was found that the spatial variations are due to the nature of the parent materials and the pedogenetic processes, although the sparse spatial distribution patterns with prominent anomalies are interpreted arising from anthropogenic sources (fertilization). However, these anomalies did not present any environmental risk in the studied zone.
Keywords: Calcareous soils; Contamination assessment; La Mancha; Lanthanides; Spatial variability; Vitis Vinifera L..
© 2022. The Author(s).
Conflict of interest statement
The authors declare no competing interests.
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