Heavy metal accumulation by old-field plant species during recovery of sludge-treated ecosystems

John D. Peles, Susan R. Brewer, Gary W. Barrett

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Concentrations of heavy metals in old-field plant species were compared among untreated reference subplots, unlimed sludge-treated subplots and limed sludge-treated subplots during the 4th yr of ecosystem recovery following long-term (11-yr) nutrient enrichment. Although results varied on a metal-specific and species-specific basis, liming was overall successful in reducing metal concentrations in old-field plant species. For example, concentrations of Cd in leaves and roots and concentrations of Pb and Zn in roots of Ambrosia trifida were significantly lower in plants collected from limed compared to unlimed sludge-treated subplots. Liming significantly reduced concentrations of Cd in leaves and roots of Solidago canadensis, and in the leaves, roots, and seeds of Setaria faberii to levels found in untreated reference subplots. Liming also significantly reduced concentrations of Cu in the roots of Solidago canadensis, Pb in the roots and seeds of Setaria faberii, and Zn in the roots and leaves of S. faberii to reference levels. Changes in plant species composition during secondary succession may also indirectly reduce metal uptake since the annual Ambrosia trifida accumulated Cd and Zn in leaves, roots and seeds at levels two to three times greater than did the perennial Solidago canadensis.

Original languageEnglish (US)
Pages (from-to)245-251
Number of pages7
JournalAmerican Midland Naturalist
Volume140
Issue number2
DOIs
StatePublished - Jan 1 1998

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old field
sludge
heavy metals
heavy metal
ecosystems
ecosystem
Setaria faberi
Solidago canadensis
liming
Ambrosia trifida
metals
leaves
seed
metal
seeds
secondary succession
plant species
nutrient enrichment
species diversity

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics

Cite this

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abstract = "Concentrations of heavy metals in old-field plant species were compared among untreated reference subplots, unlimed sludge-treated subplots and limed sludge-treated subplots during the 4th yr of ecosystem recovery following long-term (11-yr) nutrient enrichment. Although results varied on a metal-specific and species-specific basis, liming was overall successful in reducing metal concentrations in old-field plant species. For example, concentrations of Cd in leaves and roots and concentrations of Pb and Zn in roots of Ambrosia trifida were significantly lower in plants collected from limed compared to unlimed sludge-treated subplots. Liming significantly reduced concentrations of Cd in leaves and roots of Solidago canadensis, and in the leaves, roots, and seeds of Setaria faberii to levels found in untreated reference subplots. Liming also significantly reduced concentrations of Cu in the roots of Solidago canadensis, Pb in the roots and seeds of Setaria faberii, and Zn in the roots and leaves of S. faberii to reference levels. Changes in plant species composition during secondary succession may also indirectly reduce metal uptake since the annual Ambrosia trifida accumulated Cd and Zn in leaves, roots and seeds at levels two to three times greater than did the perennial Solidago canadensis.",
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Heavy metal accumulation by old-field plant species during recovery of sludge-treated ecosystems. / Peles, John D.; Brewer, Susan R.; Barrett, Gary W.

In: American Midland Naturalist, Vol. 140, No. 2, 01.01.1998, p. 245-251.

Research output: Contribution to journalArticle

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