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CSLP5

Location: Simpson


Australian Soil Classification: Bleached-Sodic, Eutrophic, Brown KUROSOL

General Landscape Description: Rises.
Site Description: Mid slope of a rise slope within a grazing paddock.
Geology: Paleogene Sediments - Gellibrand Marl and colluvium.

Image: CSLP4 5 6 Landscape
CSLP5 Landscape

Soil Profile Morphology:

Surface Soil

A10-9 cm Very dark greyish brown (10YR3/2); fine sandy loam; weak coarse sub-angular blocky, parting to weak fine sub-angular blocky structure; rough fabric; firm consistence dry; many roots present; charcoal evident; pH 5.1; abrupt change to:

 Image: CSLP5&6 Profile
CSLP5 Profile.
A29-25 cmPale brown (10YR6/3) conspicuously bleached (10YR8/3dry), with faint brownish yellow (10YR6/6) mottles common; silty clay loam; massive; earthy fabric; very firm consistence dry; contains a few coarse ferruginous concretions; many roots present; charcoal evident; pH 5.3; clear and wavy change to:

Subsoil

B21
25-45 cmLight olive brown (2.5Y5/3) with distinct yellowish brown (10YR5/6) mottles common; medium heavy clay; strong medium angular blocky, parting to moderate fine angular blocky structure; smooth fabric; very firm consistence moderately moist; slickensides evident; contains many roots; pH 5.1; gradual and wavy change to:

B2245-60 cmGreyish brown (2.5Y5/2), with many distinct yellowish brown (10YR5/6) and faint yellowish red (5YR5/6) mottles; heavy clay; moderate coarse prismatic, parting to moderate fine prismatic structure; slickensides evident; smooth fabric; strong consistence moderately moist; roots common; pH 4.9; clear change to:

B2360-110 cmGrey (5Y5/1) with many distinct strong brown (7.5YR5/6) and yellowish red (5YR5/6) mottles; heavy clay; moderate coarse prismatic, parting to medium prismatic structure; slickensides evident; smooth fabric; very firm consistence moderately moist; few roots present; pH 5.0; diffuse change to:

B3110-140 cmGrey (5Y6/1) with many prominent coarse strong brown (7.5YR5/6) and a few distinct yellowish red (5YR5/6) mottles; medium clay; weak structure; smooth fabric; firm consistence moist; pH 5.2.

NOTE: Some weak columnar structure in subsoil.


Soil Profile Characteristics:


pH


Salinity Rating
Surface
(A1 horizon)
Strongly Acid
Low
Non-Sodic
None1
Subsoil
(B21 horizon)
Strongly Acid
Very Low
Non-Sodic
None1
Deeper Subsoil
(at 60-110 cm)
Strongly Acid
Low
Sodic
None
1 Slight dispersion after remoulding.

Graph: CSLP5
The whole profile is strongly acid. The salinity rating is low to very low throughout the profile.The surface and the upper subsoil are non-sodic. The deeper subsoil is sodic.
    The clay content increases significantly at the A/B horizon interface.
Aluminium content increases from low in the surface, to very high at 45-60 cm. After 60 cm aluminium levels drop to low in the deeper subsoil.

Horizon
Horizon Depth
(cm)
pH
(water)
pH
CaCl2
EC
(dS/m)
Exchangeable Cations
Ca
Mg
K
Na
meq/100g
A1
0-9
5.1
4.6
0.13
4.9
1.8
0.27
0.45
A2
9-25
5.3
4.6
0.09
2.5
1.6
0.31
0.35
B21
25-45
5.1
4.3
0.12
3.4
3.8
0.66
0.62
B22
45-60
4.9
4.3
0.16
3.4
5.5
0.41
0.81
B23
60-110
5
4.4
0.23
3.9
5.8
0.2
1.5
B24
110-140
5.2
4.7
0.45
6
6.7
0.13
1.7


Horizon
Horizon Depth
(cm)
Total
Nitrogen
%


Organic Carbon
g/100g
Exchangeable
Acidity
meq/100g

Exchangeable
Aluminium
mg/kg
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
0-9
0.4
5.5
13
40
36.3
13.1
10
49
20
13
A2
9-25
0.97
7.4
66
25.5
8.8
4
51
17
24
B21
25-45
0.61
10
250
33.3
17.6
3
40
14
42
B22
45-60
10
290
38.7
20.7
3
26
11
58
B23
60-110
9.4
180
36.4
19.2
3
28
10
58
B24
110-140
6.2
38
39.4
20.4
2
29
10
59

Profile Described By: David Rees, Michelle Davey, Nathan Robinson (November 2008).
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).

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