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Soil Report - Agriculture et Agroalimentaire Canada

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anges from nearly level on the lacustrine plain, to very<br />

strongly sloping along some of the dissected valley walls .<br />

Parent Materials and Textures Brant soils have usually<br />

developed on silt loam or very fine sandy loam lacustrine<br />

sediments, that are often stratified . Coarser sands som<strong>et</strong>imes<br />

occur on the surface, and silty clay loam layers are som<strong>et</strong>imes<br />

present in the subsoil .<br />

<strong>Soil</strong> Moisture Characteristics Brant soils are well-drained .<br />

They are usually moderately permeable, but the permeability<br />

decreases where silty clay loam or compacted layers are<br />

present . Brant soils have fairly high water-holding capacities.<br />

Surface runoff can be high, and increases markedly with<br />

slope .<br />

General <strong>Soil</strong> Description The surface Ap horizons usually<br />

consist of about 20 cm of silt loam, loam or very fine sandy<br />

loam . Some Brant soils, e .g . (BRT .C), have sandier surface<br />

horizons consisting mainly of loamy fine sand, 15-40 cm<br />

thick . These surface horizons are normally underlain by<br />

about 25 cm of very fine sandy loam or silt loam over a<br />

distinctive, dark brown Bt horizon of loam or silty clay loam<br />

texture . This Bt horizon is usually closer to the surface on<br />

slopes due to erosion of the surficial materials . The strongly<br />

to very strongly calcareous Ck horizon occurs, usually, at<br />

about the 100 cm depth . Near Springvale there are very<br />

shallow phase Brant soils (BRT .V), where the soils are only<br />

20-50 cm deep over bedrock . The texture of the Ck horizon<br />

of Brant soils is usually silt loam, but unlike the Bt horizon,<br />

may contain thin layers of sandier textures . <strong>Soil</strong> reaction<br />

ranges from strongly acidic to neutral in the surface soil<br />

horizons, to moderately alkaline in the subsoil . <strong>Soil</strong><br />

classification is usually Brunisolic Gray Brown Luvisol .<br />

Commonly Associated <strong>Soil</strong>s The Tuscola (TUC) soils,<br />

often associated with Brant soils in map unit BRT 4, differ<br />

from the Brant soils only by being imperfectly drained . In<br />

the Simcoe-Langton areas, Brant soils are often associated<br />

in the BRT 8 map unit with the well-drained Walsher soils<br />

that have 40-100 cm of sand over silt loam . Brant soils also<br />

border several stream valleys occupied by Alluvium 1 (1-<br />

ALU), which has variable textures and drainages . The map<br />

unit BRT 13 includes the Brant soils of the valley slopes,<br />

and the alluvial soils of the floodplains.<br />

General Land Use Comments<br />

(1) Brant soils are excellent agricultural soils, widely used for<br />

grain corn and all other common field crops, as well as for a<br />

Figure 26. Eroded slopes are common on these rolling Brant<br />

soils near Langton<br />

34<br />

number of special crops such as apples, lima beans, carrots,<br />

peppers and tomatoes . Their main limitation is their<br />

susceptibility to water erosion on slopes.<br />

(2) Brant soils are also excellent forestry soils, again limited<br />

by potential erosion damage on moderate to steep slopes .<br />

Brantford <strong>Soil</strong>s (BFO)<br />

Location and Extent Brantford soils are widespread in the<br />

region and occur everywhere except along the western edge<br />

of Norfolk County . There are 6689 ha of pure Brantford<br />

map units, and 13747 ha of Brantford soils in complex map<br />

units where they are most often associated with Beverly and<br />

Toledo soils . There are also relatively large Brantford soil<br />

areas associated with Lincoln and Alluvium 1 soils .<br />

Landform and Topography Brantford soils occupy portions<br />

of most of the Haldimand clay plain . The topography ranges<br />

from nearly level to very strongly sloping . Most slopes range<br />

b<strong>et</strong>ween 3 and 7%, with steeper, dissected slopes near some<br />

river and stream valleys .<br />

Parent Materials and Textures Brantford soils have mainlv<br />

developed on lacustrine silty clay loam and silty clay<br />

deposits . Surface textures are most commonly silty clay<br />

loam, but som<strong>et</strong>imes silt loam or silty clay textures also<br />

occur . Subsoil textures are usually silty clay loam or silty<br />

clay .<br />

<strong>Soil</strong> Moisture Characteristics Brantford soils are moderately<br />

well-drained . They are moderately to slowly permeable .<br />

depending upon the incidence of soil cracks and subsoil<br />

compaction . Groundwater may perch near the surface of<br />

Brantford soils for brief periods . They have relatively high<br />

water-holding capacities, but can exhibit summer droughtiness .<br />

Surface runoff from Brantford soils is generally rapid .<br />

General <strong>Soil</strong> Description The surface Ap horizons of<br />

Brantford soils usually consist of 10-15 cm of silty clay loam .<br />

There are some loamy phase Brantford soils (BFO .L)<br />

consisting of 15-40 cm of silt loam or loam at the surface, and<br />

some coarse phase Brantford soils (BFO.C) with surfaces of<br />

fine sandy loam . Bt horizons usually begin at the 20-25 cm<br />

depth, and consist of compact silty clay or clay . The strongly<br />

calcareous Ck horizons, which usually commence at the 45-<br />

60 cm depth, are most often composed of silty clay with<br />

occasional silty clay loam or clay layers . In the Hagersville<br />

area, there are some shallow phase (BFO .S) and very shallow<br />

phase (BFO.V) Brantford soils . <strong>Soil</strong> reaction of Brantford<br />

soils ranges from very strongly acidic or neutral in the<br />

surface horizons, to moderately alkaline in the subsoil . <strong>Soil</strong><br />

classification is usually Brunisolic Gray Brown Luvisol .<br />

Commonly Associated <strong>Soil</strong>s Beverly (BVY) and Toledo<br />

(TLD) soils occur extensively with Brantford soils in map<br />

units BFO 6 and BFO 7 . They differ from Brantford soils in<br />

being imperfectly drained and poorly drained, respectively.<br />

There are also major occurrences of Brantford soils with<br />

Lincoln (LIC) soils in map unit BFO 10 in the northern part<br />

of the Town of Haldimand . Lincoln soils differ in being<br />

poorly drained and having heavy clay textures . Alluvium 1<br />

soils (1-ALU) with variable textures and drainages are often<br />

associated with Brantford soils in map unit BFO 12, which<br />

occupies stream valley-floodplain areas.<br />

General Land Use Comments<br />

(1) Brantford soils are very important for agriculture . They<br />

are used for all the common field crops, increasingly so for<br />

grain corn and soybeans . They are used to some extent for<br />

horticultural crops such as apples or cabbages. Overcompacted<br />

subsoils, droughtiness and erosion on slopes can be limi-

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