Potential phytomanagement of military polluted sites and biomass production using biofuel crop miscanthus x giganteus
Language English Country England, Great Britain Media print-electronic
Document type Journal Article
PubMed
30903832
DOI
10.1016/j.envpol.2019.03.018
PII: S0269-7491(18)32969-5
Knihovny.cz E-resources
- Keywords
- Dynamic of foliar metal(loid)s, Miscanthus x giganteus, Polluted military sites, Principal component analysis, metal(loid) uptake,
- MeSH
- Biodegradation, Environmental MeSH
- Biomass MeSH
- Biofuels * MeSH
- Plant Roots metabolism MeSH
- Metals analysis MeSH
- Soil Pollutants analysis MeSH
- Environmental Pollutants analysis MeSH
- Poaceae metabolism MeSH
- Soil MeSH
- Environmental Restoration and Remediation methods MeSH
- Publication type
- Journal Article MeSH
- Geographicals
- Slovakia MeSH
- Names of Substances
- Biofuels * MeSH
- Metals MeSH
- Soil Pollutants MeSH
- Environmental Pollutants MeSH
- Soil MeSH
This study aims to summarize results on potential phytomanagement of two metal(loid)-polluted military soils using Miscanthus x giganteus. Such an option was tested during 2-year pot experiments with soils taken from former military sites in Sliač, Slovakia and Kamenetz-Podilsky, Ukraine. The following elements were considered: As, Cu, Fe, Mn, Pb, Sr, Ti, Zn and Zr. M. x giganteus showed good growth at both military soils with slightly higher maximum shoot lengths in the second year of vegetation. Based on Principal Component Analysis similarities of metal(loid) uptake by roots, stems and leaves were summarized. Major part of the elements remained in M. x giganteus roots and rather limited amounts moved to the aerial parts. Levels taken up decreased in the second vegetation year. Dynamics of foliar metal(loid) concentrations divided the elements in two groups: essential elements required for metabolism (Fe, Mn, Cu, and Zn) and non-essential elements without any known metabolic need (As, Sr, Ti, and Zr). Fe, Mn, Ti and Sr showed similar S-shaped uptake curve in terms of foliar concentrations (likely due to dilution in growing biomass), while Cu exhibited a clear peak mid-season. Behavior of Zn was in between. Foliar Zr and As concentrations were below detection limit. The results illustrated a good potential of M. x giganteus for safely growing on metal-polluted soils taken from both military localities.
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