Soil Report - Agriculture et Agroalimentaire Canada

Well-drained site
Plainfield soil (PFD)
Imperfectly drained site
Walsingham soil (WAM)
Poorly drained site
Waterin soil (WRN)
Figure 19 . Typical forest tree distribution on a toposequence
of sandy soils in the Haldimand-Norfolk Region
During a study of the suitability for major commercial
forest tree species of the soils of the Haldimand-Norfolk
Region (19), forest tree distributions were determined on a
range of soil sites . These distributions are generalized for
sandy, loamy, or clayey parent materials and different soil
moisture characteristics (Figures 19 to 21) . It should be
noted that the number of species represented on a specific
parent materal site is proportional to the actual frequency
distribution at that site . Species symbols are defined in
Figure 21 .
In Figures 19, 20 and 21, each generalized parent material
-soil moisture diagram consists of a toposequence and
related forest tree distribution. For example on the well
drained sandy site (Figure 19), white pine (Pw) and several
oaks - red (Or), white (Ow) and black (Obl) - are shown to
dominate dry, sandy sites. Downslope on the more level
imperfectly drained sand site, the tree distribution includes
hardwoods of intermediate shade tolerance such as bittemut
hickory (Hib), black cherry (Cb), white ash (Aw) and red
maple (Mr) . Finally, on the lower topographic positions
where poorly drained sandy sites prevail, the forest tree
distribution includes mainly soft maples, e.g . silver maple
(Ms) and red maple (Mr) . Forest tree distributions change
similarly with increasing moisture contents and changing
topography on clayey and loamy sites (Figures 20, 21) .
23
Hib Mh
Well-drained site
Brant soil (BRT)
Imperfectly drained site
Tuscola soil (TUC)
Poorly drained site
Colwood soil (CWO)
Aw
Aw Cew Mr Ms Ms Osw
Figure 20. Typical forest tree distribution on a toposequence
of loamy soils in the Haldimand-Norfolk Region