GUELPH, ONTARIO - Agriculture and Agri-Food Canada

occur within the section as well as a scattering of aspen, hickory, ironwood and
black cherry. Silver maple, slippery and rock elm and black ash occur on
specialized sites such as river bottoms and swamps. White and red pine stands
are found on lighter soils and Eastern white cedar in the swampy depressions.
After fires, aspen and white birch often form secondary associations. The
distribution of the main forest associations is shown in Figure 12. The associations
most commonly found include:
1. Sugar Maple — Beech Association
The sugar maple-beech association occurs on well drained soils formed on
coarse and medium textured till and on well drained soils formed on outwash
materials. The association is also dominant on the well drained locations on
the Breypen land type. A secondary growth of silver birch and poplar is
commonly found growing on the coarse textured well drained soils after the
original sugar maple-beech vegetation has been removed.
Beech predominate in this woodlot located on well drained outwash soil.
The hard maple have been cut out.
2. Soft Maple — Elm — Ash Association
This association is dominant on the well drained, fine textured soils and
on all the imperfectly drained soils. Other species found in small numbers
include basswood, hemlock and ironwood.
3. Elm — Ash — Cedar Association
The elm-ash-cedar association occurs on the poorly and very poorly drained
soils. Large numbers of Eastern white cedar are usually found in the swampy
depressions. Tamarack often occur on the coarse textured poorly drained soils
and poplar are present on the fine and medium textured poorly drained soils.
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