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| Web URL(s): | https://dl.sciencesocieties.org/publications/jeq/pdfs/28/6/JEQ0280061727
Last checked: 12/12/2016
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| Publication Type:
| Refereed |
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| Author(s): | Zhu, D.;
Schwab, A. P.;
Banks, M. K. |
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| Author Affiliation: | Zhu: Agronomy Department, Kansas State Univerisity, Manhattan, KS; Schwab: Agronomy Department, Purdue University, West Lafayette, IN; Banks: Civil Engineering Department, Purdue University, West Lafayette, IN |
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| Title: | Heavy metal leaching from mine tailings as affected by plants |
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| Section: | Technical reports: Heavy metals in the environment
Other records with the "Technical reports: Heavy metals in the environment" Section
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| Source: | Journal of Environmental Quality. Vol. 28, No. 6, November/December 1999, p. 1727-1732. |
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| Publishing Information: | Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Heavy metals; Mine soils; Soil contamination; Festuca arundinacea; Andropogon gerardii; Leaching; Zinc; Cadmium; Lead
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| Abstract/Contents: | "A column experiment was conducted to determine the impact of soil cover and plants on heavy metal leaching from mine tailings and heavy metal contaminated soil. Columns made of PVC were constructed with 30c, subsoil covered by 30cm of mine tailings followed by 0, 30, or 60cm of clean topsoil. Two grasses, tall fescue (Festuca arundinacea Schreb.) and big bluestem (Andropogon gerardii), were grown in the columns. The columns were leached at a slow rate for 1yr with a 0.001M CaCl₂ solution under unsaturated conditions. The presence of both tall fescue and big bluestem increased Zn and Cd concentrations in the leachate. Lead concentrations in leachates were not affected by the presence of plants. Although plants generally reduced the total amount of water leached, total mass of Zn and Cd leached generally was not impacted by plants. Total mass of Pb leached was positively correlated (r = 0.9) with total leachate collected from each column. Covering the mine tailings with 60cm of topsoil (with or without vegetation) increased the mass of Zn and Cd leached relative to no topsoil. When the subsoil was absent, Zn and Cd leaching increased by as much as 20-fold, verifying the ability of soil to act as a sink for metals. Mine tailing remediation by establishing vegetation can reduce Pb movement but may enhance short-term Cd and Zn leaching. However, the changes were relatively small and do not outweigh the benefits of using vegetation in mine tailings reclamation." |
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| Language: | English |
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| References: | 27 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Zhu, D., A. P. Schwab, and M. K. Banks. 1999. Heavy metal leaching from mine tailings as affected by plants. J. Environ. Qual. 28(6):p. 1727-1732. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/jeq/pdfs/28/6/JEQ0280061727
Last checked: 12/12/2016
Requires: PDF Reader
Notes: Item is within a limited-access website |
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MSU catalog number: S 900 .J6 |
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