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Site SW21

Location: Simpson Australian Soil Classification: Humose-Acidic, Dystrophic, Grey DERMOSOL
General Landscape Description: Grazing paddock (dairy).Geology: Tertiary - Moorabool Viaduct Formation.
Mapping Unit: Simpson Land System (Pitt, 1981).Site Description: Gently undulating plain 'grass-tree country'.

Image: SW21 Landscape
Site SW21 Landscape


Soil Profile Morphology:

Surface Soil

A10-20 cmBlack (10YR2/1); fine sandy loam; weak coarse blocky, parting to medium blocky structure; weak to firm consistence moist; pH 4.9; clear change to:

Image: SW21 Profile
Site SW21 profile photo.
A220-40 cmDark greyish brown (10YR4/2); light fine sandy clay loam; weak to moderate medium polyhedral structure; firm consistence moist; very few (<1%) ferromanganiferous nodules (5 mm size); some rusty root channel mottling present; pH 4.8; clear change to:

Subsoil

B140-60 cmDark greyish brown (10YR4/2) with yellowish brown (10YR5/8) and light yellowish brown (10YR6/4) mottles; fine sandy clay loam; weakly structured; very firm consistence moist; pH 4.8; gradual change to:

B2160-90 cmLight brownish grey (10YR6/2) with yellowish brown (10YR5/8) mottles; light clay; weak to moderate coarse blocky, parting to medium blocky structure; firm consistence moist; pH 4.7; gradual change to:

B2290+ cmLight brownish grey (10YR6/2) with yellowish brown (10YR5/8) mottles; light medium clay; weak to moderate coarse blocky, parting to medium blocky structure; very few (1%) iron nodules (5-10 mm size) and quartz fragments (2-3 mm size); pH 4.6.

Key Profile Characteristics:

pH
Salinity Rating
Surface
(A1 horizon)
Very Strongly Acid
Low
Non-Sodic
None
Subsoil
(B21 horizon)
Very Strongly Acid
Very Low
Non-Sodic
None
Deeper subsoil
(at 90+ cm)
Very Strongly Acid
Very Low
Non-Sodic
None

Image: SW21 Graphs

Horizon
Horizon Depth
(cm)
pH
(water)
pH
CaCl2
EC
1:5
Exchangeable Cations
Ca
Mg
K
Na
meq/100g
A1
0-20
4.9
4.3
0.22
6.2
0.7
0.4
0.1
A2
20-40
4.8
4.1
0.1
0.7
0.5
0.05
0.05
B1
40-60
4.8
4.2
0.08
0.4
0.3
0.05
0.05
B21
60-90
4.7
4.1
0.08
0.3
0.4
0.05
0.05
B22
90+
4.6
4
0.1
0.3
0.6
0.05
0.05

Horizon
Horizon Depth
(cm)
Field
Capacity
pF2.5
Wilting
Point
pF4.2
Coarse Sand
(0.2-2.0 mm)
Fine Sand
(0.02-0.2 mm)
Silt
(0.002-0.02 mm)
Clay
(<0.002 mm)
A1
0-20
31
20
26
36
11
10
A2
20-40
19
8
25
40
15
14
B1
40-60
18
7
26
40
14
17
B21
60-90
20
8
24
39
10
24
B22
90+
22
11
21
34
15
31

Profile Described By: Mark Imhof and Austin Brown, August 1998.
CC BY 4.0 AU

This page contains material sourced from the Victorian Resources Online (VRO) website, originally published by the State Government of Victoria.

The content is provided under the Creative Commons Attribution 4.0 Australia licence (CC BY 4.0 AU).

This material is presented in an archived form and is no longer maintained or updated. It is provided for general information only and should not be relied upon as current advice.

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