期刊
ENVIRONMENTAL EARTH SCIENCES
卷 63, 期 6, 页码 1227-1237出版社
SPRINGER
DOI: 10.1007/s12665-010-0796-8
关键词
Piptatherum miliaceum; Ditrichia viscosa; Hirsfeldia incana; Cartagena-La Union; X-ray fluorescence; Metals
资金
- Spanish National Research Programme [CGL2007-66861-C04]
- Spanish Ministry of Science and Education [BES2005-6810]
A geochemical and mineralogical characterization of three zones (namely oxides zones, hydrothermal alteration zone and mining wastes zone) from a mineralized zone in the upper part of the Cartagena-La Unin range was carried out by analysing rocks, soils and three plant species (Piptatherum miliaceum, Ditrichia viscosa and Hirsfeldia incana). The transference and bioavailability of some metals (especially Pb, Zn, As and Fe) from soils to plants was also checked. Results show that rocks have a large content of Fe and Pb which are transferred to surrounding soils also highly enriched in these elements (Fe ranges from 9 to 35% and Pb 1 to 2.9%). Regarding soil to plant transfer, it was shown a differential behaviour for both the three plant species and the soil zones, with a higher level of metal accumulation rates for Piptatherum miliaceum in the hydrothermal alteration zone. Values of accumulation rates obtained for Pb in Piptatherum miliaceum allow considering it a good choice for phytoremediation purposes.
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