Assessment of lead availability in soils contaminated by mine spoil |
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Authors: | Marcus Jopony Scott Young |
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Institution: | (1) Department of Physiology and Environmental Science, School of Agriculture, University of Nottingham, Sutton Bonington, LE12 5RD Loughborough, UK;(2) Present address: Universiti Kebangsaan Malaysia, Sabah Campus, 88996 Kota Kinabalu, Sabah, Malaysia |
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Abstract: | The uptake of lead by two contrasting plant species, radish and red fescue, grown in soils contaminated by mine spoil was investigated. Uptake was found to be poorly correlated either with pH or total Pb concentration in the soils. By contrast, a good correlation was obtained, particularly for red fescue, between Pb uptake and Pb concentration in the solution of equilibrated soil suspensions over a wide range of soil pH, total soil Pb and soil solution Pb concentration.Calculations suggested a similar order of magnitude in the total amounts of Pb taken up by the plants and Pb in the soil solution of the root zone, justifying the latter as a good index of Pb-availability. ei]Section editor: A C Borstlap |
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Keywords: | lead metals radish red fescue soil solution |
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