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Coal-Ash Effects on Fuelwood Production and Runoff Water Quality

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The poorly-drained sandy soil of a small watershed in north-central Florida was amended with 56 dry tons/acre of coal-ash, bedded at 6-foot spacing, and planted to seedlings at 3-foot intervals. First-year growth of Casuarina cunninghamiana or Australian pine was better than on the nonamended control. The exceptional freeze of the winter of 1982 killed about 70 percent of the trees, but surviving individuals continued significantly improved growth rates as compared to the control. Replanting with Eucalyptus viminalis showed no better growth than the control. Dissolution of bases from the ash neutralized the normally acid soil and runoff water. As a consequence, concentrations of heavy metals in runoff were diminished.
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Document Type: Journal Article

Affiliations: Associate professor, University of Florida, Gainesville 32601

Publication date: 01 May 1984

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