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Forestry 1989 62(1):19-28; doi:10.1093/forestry/62.1.19
© 1989 by Institute of Chartered Foresters
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The Effect of Landfill Leachate Spraying on Foliar Nutrient Concentrations and Leaf Transpiration in a Northern Hardwood Forest, Canada

ANDREW M. GORDON, RAYMOND A. McBRIDE and AVRIL J. FISKEN

Department of Environment Biology University of Guelph Guelph, Ontario N16 2WI Canada
Department of Land Resource Science University of Guelph Guelph, Ontario N16 2WI Canada

The effect of municipal solid waste (MSW) leachate spray irrigation on a mature northern hardwood forest was investigated. Canopy foliar samples and stem increment cores were collected from two indicative species, sugar maple (Acer saccharum Marsh.) and American beech (Fagus grandifolia Ehrh.), within each of a heavily sprayed, lightly sprayed and control area. Foliar concentrations of N and P were significantly higher in both maple and beech foliage within the sprayed areas when compared to an unsprayed area (control). Levels of Mg and K were markedly higher in maple but not beech foliar samples within the heavily sprayed areas when compared to foliage sampled within the unsprayed control. While no significant trends were observed within the maple foliage, both Fe and B levels increased significantly in beech foliar samples obtained from within the heavily sprayed area in comparison to foliage samples from the control. Direct porometric measurements of the transpiration rate and diffusive (stomatal) resistance of canopy and understory plant leaves revealed a significant increase in diffusive resistance and a decline in transpiration rate with leachate spraying. After four years of spraying a significant effect of leachate application on radial stem growth of both maple and beech trees has not been observed.


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 Waste Manag ResHome page
S.C. Shrive and R.A. McBride
Physiological Responses of Red Maple Saplings To Sub-Irrigation With an Untreated Municipal Landfill Leachate
Waste Management Research, January 1, 1995; 13(3): 219 - 239.
[Abstract] [PDF]

Home page
 Waste Manag ResHome page
S.C. Shrive, R.A. McBride, and T.J. Gillespie
Physiological and Spectral Responses of Sugar Maple (Acer Saccharum Marsh.) To Msw Leachate Spray Irrigation
Waste Management Research, January 1, 1990; 8(1): 3 - 19.
[Abstract] [PDF]


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