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Site SW23

Location: SimpsonAustralian Soil Classification: Acidic, Mesotrophic, Brown DERMOSOL
General Landscape Description: Grazing paddock (dairy).Mapping Unit: Tomahawk Creek Land System (Pitt, 1981).
Site Description: Creek Terrace.Geology: Tertiary - Moorabool Viaduct Formation.

Image: SW23 Landscape
Site SW23 landscape


Soil Profile Morphology:

Surface Soil

A10-10 cm Dark brown (10YR3/3); fine sandy clay loam; weak consistence moist; pH 5.6; abrupt change to:

Image: SW23 Profile
Site SW23 profile photo.
A210-25 cmLight brownish grey (10YR6/2); silty clay loam; weak coarse blocky structure; rusty root channel mottling present; pH 5.4; clear change to:

Subsoil
B125-40 cmLight yellowish brown (2.5Y6/4) with reddish yellow (7.5YR6/6) mottles; heavy silty clay loam; weak to moderate coarse blocky structure; pH 5.2; clear change to:

B2140-70 cmBrown (10YR5/3) with reddish yellow (7.5YR6/6) mottles; silty clay; moderate coarse blocky, parting to strong medium polyhedral structure; pH 5.0; clear change to:

B2270+ cmLight brownish grey (10YR6/2) with brownish yellow (10YR6/6); light medium clay; weak very coarse prismatic, parting to strong coarse blocky and strong fine to medium polyhedral structure; pH 5.0.

Key Profile Features:
Key Profile Characteristics:

pH
Salinity Rating
Surface
(A1 horizon)
Moderately Acid
Very low
Non-sodic
none
Subsoil
(B21 horizon)
Strongly Acid
Very low
Non-sodic
none
Deeper subsoil
(at 70+ cm)
Strongly Acid
Very low
Non-sodic
none

Image: SW23 Graphs

Horizon
Horizon Depth
(cm)
pH
(water)
pH
CaCl2
EC
1:5
Exchangeable Cations
Ca
Mg
K
Na
meq/100g
A1
0-10
5.6
4.9
0.15
5.4
1.1
0.2
0.1
A2
10-25
5.4
4.6
0.1
1.9
0.8
0.3
0.05
B1
25-40
5.2
4.3
0.11
1.7
1.3
0.3
0.1
B21
40-70
5
4.2
0.13
1.8
1.8
0.3
0.2
B22
70+
5
4.2
0.15
2.2
3.9
0.3
0.3

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
0-10
36
13
5
43
25
16
A2
10-25
26
8
2
50
30
16
B1
25-40
27
11
2
47
26
25
B21
40-70
29
13
2
42
26
30
B22
70+
31
17
1
35
21
42

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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