Soil Report - Agriculture et Agroalimentaire Canada
Soil Report - Agriculture et Agroalimentaire Canada
Soil Report - Agriculture et Agroalimentaire Canada
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Styx <strong>Soil</strong>s (SYX)<br />
Location and Extent Most of the Styx soils are located on<br />
the till moraines in the northern part of the Township of<br />
Delhi . There are also a few occurrences in the Waterford<br />
area . There are only 29 ha of pure Styx map units, and 93 ha<br />
of Styx soils in complex map units associated with Muriel<br />
soils on the Tillsonburg moraine .<br />
Landform and Topography Styx soils are located in poorly<br />
drained, enclosed depressions on the Tillsonburg, Galt and<br />
Paris moraines . Although the basin topography is level, the<br />
surrounding moraine topography is often moderately to<br />
steeply sloping .<br />
Parent Materials and Textures Styx soils are deep organic<br />
soils consisting of more than 160 cm of organic material .<br />
The surface organic layer is well to moderately decomposed,<br />
whereas deeper layers are often fibric and less decomposed .<br />
<strong>Soil</strong> Moisture Characteristics Styx soils are very poorly<br />
drained . They are rapidly permeable, but groundwater is<br />
close to, or above the surface, most of the year . They have<br />
high water-holding capacities and very slow surface runoff .<br />
General <strong>Soil</strong> Description Styx soils are organic soils whose<br />
surface layers usually consist of about 40 cm of mesic or<br />
humic materials . Underlying these horizons, to a depth not<br />
exceeding 160 cm, organic textures are usually similar, but<br />
som<strong>et</strong>imes become less decomposed with depth . <strong>Soil</strong> classification<br />
is usually Typic Humisol .<br />
Commonly Associated <strong>Soil</strong>s Steeply sloping Muriel soils<br />
(MUI) are associated with, and enclose some of the swamps<br />
containing Styx soils in the Tillsonburg moraine . They are<br />
found on the soil map in map unit SYX 2 .<br />
General Land Use Comments<br />
(1) Styx soils are useful for veg<strong>et</strong>able crops if cleared and<br />
drained, but the advisability of this, from an environmental<br />
standpoint, is questionable .<br />
(2) Mainly because of the high watertables, Styx soils are of<br />
little value for commercial forestry .<br />
Tavistock <strong>Soil</strong>s (TVK)<br />
Location and Extent Tavistock soils are mostly found in the<br />
Waterford and Port Dover areas . There are 363 ha of pure<br />
Tavistock map units, and 2468 ha of Tavistock soils in<br />
complex map units which are often associated with loamy<br />
phase Brantford and Brantford soils .<br />
Landform and Topography Tavistock soils occupy areas of<br />
lacustrine clay plains where silt loam was deposited over the<br />
clays . The topography ranges from level to very gently<br />
sloping.<br />
Parent Materials and Textures Tavistock soils are developed<br />
on 40-100 cm of deep-water glaciolacustrine silt loam to very<br />
fine sandy loam that usually overlies silty clay or silty clay<br />
loam .<br />
<strong>Soil</strong> Moisture Characteristics Tavistock soils are imperfectly<br />
drained and moderately to slowly permeable . Groundwater<br />
temporarily saturates portions of the overlying silts, especially<br />
just above the clay contact, for short periods of time during<br />
the spring growing season . Although Tavistock soils have<br />
high water-holding capacities, surface runoff ranges from<br />
moderate to high depending on the slope .<br />
General <strong>Soil</strong> Description The surface Ap horizons of<br />
Tavistock soils are usually about 20 cm thick, and consist of<br />
silt loam, loam or very fine sandy loam . Similar textures<br />
occur in the upper subsoil down to the clay contact . Distinct<br />
or prominent yellowish-brown mottles are present in this<br />
zone . A weak, compacted hardpan may also occur at the<br />
silt-clay contact . The moderately to very strongly calcareous<br />
Ck horizon, which usually begins in the clay zone, is usually<br />
silty clay loam or silty clay . <strong>Soil</strong> reaction usually ranges from<br />
strongly acidic to neutral in the surface horizons, and mildly<br />
or moderately alkaline in the deeper subsoil . <strong>Soil</strong> classification<br />
is usually Gleyed Brunisolic Gray Brown Luvisol .<br />
Commonly Associated <strong>Soil</strong>s Brantford soils (BFO) and<br />
loamy phase Brantford (BFO .L) soils are often associated<br />
with Tavistock soils . Both soils differ from Tavistock soils by<br />
being moderately well-drained . Both also have shallwer<br />
deposits of loamy soils over lacustrine clays than Tavistock<br />
soils . Loamy phase Brantford soils have 15-40 cm of loamy<br />
materials over clay, whereas Brantford soils may have loamy<br />
surfaces no thicker than 15 cm . Brantford and Tavistock<br />
soils are mapped tog<strong>et</strong>her in map unit TVK 3 ; loamy phase<br />
Brantford soils and Tavistock soils occur tog<strong>et</strong>her in map<br />
unit TVK 5 .<br />
General Land Use Comments<br />
(1) Tavistock soils are very good agricultural soils, suitable<br />
for a wide range of field and horticultural crops . They may<br />
require some artificial drainage, especially if subsoils become<br />
compacted by heavy machinery .<br />
(2) Tavistock soils are somewhat b<strong>et</strong>ter than average for<br />
forest productivity, especially for European larch, white oak<br />
and tulip tree .<br />
.< r-i..-__<br />
Figure 38 . Tavistock soils occupy the level upland plain<br />
above the eroded Lake Erie shoreline near Normandale<br />
Toledo <strong>Soil</strong>s (TLD)<br />
Location and Extent Toledo soils are mapped over all but<br />
the western portion of the region that is occupied by sand<br />
plains and till moraines . There are 4480 ha of pure Toledo<br />
map units, and 19458 ha of Toledo soils in complex map<br />
units where they are often associated with Brantford and<br />
Beverly soils .<br />
Landform and Topography Toledo soils occur on poorly<br />
drained portions of the lacustrine clay plains that occupy<br />
most of the central and eastern part of the region. The<br />
topography ranges from level to very gently sloping .