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OTR489

OTR489 landscape
Red limestone rise west of Torquay

    Site Code
OTR489



Ceteric, Pedal, Calcic Calcarosol
    Location
Torquay (Torquay football ground)
    Landform
Rolling rises/low hills
    Geology
Palaeogene Jan Juc Formation/Quaternary alluvium
    Element
Hillslope – upper slope
    Slope
-
    Aspect
South-westerly
Horizon
Depth (cm)
Description
A10–10Reddish brown (5YR4/4); sandy clay loam; weak crumb structure; clear boundary to:

B2110–30Yellowish red (5YR4/6); medium clay; strong medium (l0 mm) subangular blocky structure; diffuse boundary to:

B2230–70Yellowish red (5YR4/6); medium clay; strong medium (l0 mm) subangular blocky structure; soft accumulations of calcium carbonate; abrupt boundary to:

C70+Weathering limestone and marl.
Management considerations
Limestone can provide the calcium so often lacking in Victorian soils but may occur in high concentrations that prove too alkaline for some plants (affecting soil nutrient availability and be restrictive to root movement where close to the surface). The shallow sandy topsoil (generally 10cm or less) has a reduced water holding capacity limiting root growth and high susceptibility to wind erosion. Calcium carbonate nodules (segregations, soft and hard) are derived from the source parent material (limestone).

Analytical data
Site OTR489
Sample
depth
pH
EC
NaCl
Ex Ca
Ex Mg
Ex K
Ex Na
Ex Al
Ex acidity
FC
(-10kPa)
PWP
(-150kPa)
KS
FS
Z
C
Horizon
cm
H2O
CaCl2
dS/m
%
cmolc/kg
cmolc/kg
cmolc/kg
cmolc/kg
mg/kg
cmolc/kg
%
%
%
%
%
%
A1
0-10
6.5
N/R
0.099
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
B21
10-20
6.1
N/R
0.064
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
B22
30-50
6.7
N/R
0.113
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
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