Physiological responses of red maple saplings to sub-irrigation with an untreated municipal landfill leachate

Shrive, S.C.; McBride, R. A.

doi:10.1016/s0734-242x(95)90041-1

Cited by 1 publication

(1 citation statement)

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“…Iron becomes more soluble under anaerobic soil conditions and its concentration in the roots of plants has been reported to increase with flooding [50,51] . Shrive and McBride [52] observed a reddish brown plaque on the root system of red maple seedlings after flooding with municipal solid waste landfill leachate. Levan and Riha [53] reported that black spruce trees grown under flooded and non-flooded conditions had iron concentrations of 2240 and 193 mg kg 1 in their roots, respectively.…”

Section: Trunk Woodmentioning

confidence: 99%

Uptake and Translocation of Iron by Native Tree Species In A Constructed Wetland Treating Landfill Leachates

Ghaly¹,

Côté²,

Snow³

2008

American J. of Applied Sciences

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A surface flow wetland was constructed in the Burnside Industrial Park, Dartmouth, Nova Scotia, to treat stormwater runoff from the surrounding watersheds which are comprised primarily of commercial properties and two former landfills. The objectives of this study were: (a) to compare the uptake of iron by red maple, white birch and red spruce trees growing under flooded soil conditions in the constructed wetland and well drained soil conditions in a nearby reference site, (b) to evaluate the seasonal variability of iron in these trees and (c) to determine the distribution of iron in different compartments of these trees (leaves, twigs, branches, trunk wood, trunk bark and roots). The average iron concentrations in the aboveground compartments of red maple, white birch and red spruce trees were within the range of iron concentrations reported in the literature for these trees. Red maple, white birch and red spruce trees in the constructed wetland had significantly greater iron concentrations in their roots than the same species in the reference site. The average iron concentrations in the leaves of red maple trees in the constructed wetland and the reference site displayed an increasing trend towards the end of the growing season while the average iron concentrations in the twigs of red maple and white birch trees in the constructed wetland and the reference site displayed maximum concentrations at the beginning of the growing season. Red maple, white birch and red spruce trees in the constructed wetland retained a major portion of their overall iron concentration in their root systems.

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