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Publication Type J
Authors Khodaverdiloo, H. and R. H. Taghlidabad
Title Phytoavailability and potential transfer of Pb from a salt-affected soil to Atriplex verucifera, Salicornia europaea and Chenopodium album
Source Chemistry and Ecology
Author Keywords halophytes salinity heavy metals sodicity phytoavailability phytoextraction semiarid zone soils mesembryanthemum-crystallinum sesuvium-portulacastrum metal bioavailability 2 halophytes cadmium lead growth plant land
Abstract The phytoavailability and potential transfer of Pb to Atriplex verucifera, Salicornia europaea and Chenopodium album in two calcareous soils with different salinity/sodicity were compared. The soils were spiked with 0, 250, 500 and 1000mgPbkg(-1) soil. Plant shoots were harvested and analysed for total Pb after they had been grown in the contaminated soils. Visual MINTEQ 3.0 was used to calculate the speciation of soluble Pb in the experimental soils. Results showed that although the concentrations of 1M NH4NO3-extractable Pb were relatively similar, speciation of Pb in the soils were not the same. Salicornia europea was found to be the most salinity/sodicity-tolerant plant. When the plants were grown in non-saline soil, the Pb tolerance of the three plants was as follows: A. verucifera > C. album >S. europea, whereas in saline (sodic) soil, Pb tolerance was in the order S. europea > C. album > A. verucifera. Lead phytotoxicity to A. verucifera and C. album was higher in the saline soil, whereas for S. europea, Pb toxicity was higher in the non-saline soil. It could be concluded that the phytoavailability of Pb and its interactions with plants are widely dependent on soil salinity level and type of plant.
ISSN 0275-7540
ISBN 0275-7540
29-Character Source Abbreviation Chem. Ecol.
Publication Date Apr
Year Published 2014
Volume 30
Issue 3
Beginning Page 216-226
Digital Object Identifier (DOI) 10.1080/02757540.2013.861827
Unique Article Identifier WOS:000334064500003
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