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WCSS06

Location: Bellarine


Australian Soil Classification: Hypercalcic, Mottled-Subnatric, Brown SODOSOL


General Landscape Description: Rises.
Site Description: Upper slope (8% slope) of a hill slope.
Geology: Tertiary (Neogene) sediments, poorly consolidated ferruginised sandstone.
Land Use: Vineyard.

Image: WCSS06 & 07 Landscape
WCSS06 Landscape

Soil Profile Morphology:

Surface Soil


A110-15 cmDark brown (7.5YR3/2); light sandy loam; weak structure; rough faced peds; weak consistence dry; pH 6.3; clear change to:

Image: WCSS06 Profile WCSS06 Profile
A1215-25 cmDark brown (7.5YR3/2); heavy loamy sand; massive; earthy fabric; weak consistence dry; contains a few coarse (6-22 mm in size) ferruginous and ferro-manganiferous concretions; pH 5.4; clear change to:

A225-40 cmBrown (7.5YR4/2); heavy loamy sand; massive structure; earthy fabric; weak consistence dry; very coarse ferruginous nodules common; many distinct clay cutans present; pH 5.9; clear and wavy change to:
Subsoil

B2140 - 70 cmYellowish brown (10YR5/4) with many very dark grey (10YR3/1) and yellowish red (5YR5/8) mottles; medium heavy clay; strong very coarse angular blocky, parting to strong medium angular blocky structure; smooth faced peds; very firm consistence moderately moist; contains a few very coarse soft calcareous segregations in patches as well as very few coarse fragments; many distinct clay cutans evident; pH 6.4; changing to:

C170 – 90 cmYellowish brown (10YR5/6) with many very dark greyish brown (10YR3/2) and very pale brown (10YR7/3) mottles; sandy clay; moderate fine polyhedral structure; rough faced peds; contains many very coarse calcareous soft segregations, as well as many angular ferruginised sandstone fragments; some distinct infill evident; highly calcareous; pH 8.7; changing to:

C290 – 130+ cmYellowish brown (10YR5/6) with many very dark greyish brown (10YR3/2) and very pale brown (10YR7/3) mottles; sandy clay; massive; contains a common amount of very coarse soft calcareous segregations; contains abundant ferruginised sandstone fragments; some distinct clayey infills evident; highly calcareous; pH 8.8.


Soil Profile Characteristics:


pH

Salinity Rating
Surface
(A1 horizon)
Slightly Acid
Low
Non-Sodic
None 1
Subsoil
(B21 horizon)
Slightly Acid
Low
Sodic
Moderate1
Deeper Subsoil
(at 90-130+ cm)
Strongly Alkaline
Low
Sodic
Strong
1 Strong dispersion after remoulding.

Image: WCSS06 Graphs

The surface and upper subsoil is slightly acidic. The deeper subsoil is strongly alkaline.The salinity rating is low throughout the profile.The surface is non-sodic. The subsoil is sodic, with sodicity increasing with depth.There is a sharp increase in clay content at the surface / subsoil boundary.

Horizon
Horizon Depth
(cm)
pH
(water)
pH
(CaCl2)
EC
dS/m
Sodium Chloride
%
Exchangeable Cations
Ca
Mg
K
Na
meq/100g
A11
0-15
6.3
5.7
0.14
5.6
1.4
0.82
0.33
A12
15-25
5.4
4.8
0.1
2.6
0.66
0.24
0.2
A2
25-40
5.9
5.2
0.09
2.6
0.61
0.23
0.25
B2
40-70
6.4
5.6
0.2
11
9.0
0.48
1.8
C1
70-90
8.7
8.1
0.27
0.01
6.1
4.7
0.34
1.4
C2
90-130
8.8
8.2
0.26
0.01
4.7
3.5
0.24
1.4


Horizon
Horizon Depth
(cm)
Oxidisable Organic Carbon
%
Nitrogen
g/100g
Exchangeable Aluminium
mg/kg
Exchangeable Acidity
meq/100g
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)
A11
0-15
2.2
0.13
<10
5.1
16.4
5.3
7
71
6
11
A12
15-25
1.3
0.06
<10
5.4
14.7
4.5
10
72
4
11
A2
25-40
0.83
<0.05
<10
4.8
14.5
4.6
25
62
9
6
B2
40-70
1.1
0.1
<10
10
42.4
23.1
2
30
3
61
C1
70-90
23.8
13.0
6
52
2
31
C2
90-130

Profile Described By: David Rees and Siegfried Engleitner (March 2010).
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.

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