Plant and Soil

, Volume 46, Issue 1, pp 251–257 | Cite as

A comparative study of metal levels in plants from two contrasting lead-mine sites

  • W. R. Johnston
  • John Proctor
Short Communication


An investigation into the levels of metals in plants growing on metalliferous soils was carried out. The exchangeable metal concentration of soils from Tyndrum and Trelogan was found to be extremely variable from sample to sample and the influence of soil pH on the exchangeable lead and zinc concentration is discussed. Large differences in heavy metal levels were found between species and may be indicative of different mechanisms of tolerance to lead and zinc excess. Large differences in calcium levels between plant tissues were also found. These may result from the use of calcium in ameliorating lead and zinc toxicity in some species.


Calcium Zinc Heavy Metal Toxicity Plant Physiology 


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Copyright information

© Martinus Nijhoff 1977

Authors and Affiliations

  • W. R. Johnston
    • 1
  • John Proctor
    • 1
  1. 1.Biology Dept.University of StirlingStirlingScotland

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