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GW03

Location: Nyora

Australian Soil Classification: Humose, Humic/Sesquic, Semiaquic PODOSOL

Northcote Factual Key: Uc2.36
Map Unit: Nyora

General Landscape Description: Low hills.
Site Description: Upper slope of a rise slope.
Geology: Neogene sediments (aeolian and riverine).
Land Use: Quarry.

Image: GW03 landscape
GW03 Landscape

Soil Profile Morphology:

Surface Soil

A10 – 35 cmBlack (10YR2/1); loamy sand; soft surface condition; apedal; earthy fabric; firm consistence dry; pH 4.2; clear and wavy change to

Image: GW03 3m profile
GW03 Profile. 3 metres depth.
A235 – 115 cmVery pale grey (2.5Y7/1); sand; apedal; granular fabric; weak consistence dry; pH 4.4; clear wavy change to

Subsoil
Bh115 – 165 cmBlack (10YR2/1); loamy sand; apedal; earthy fabric; firm consistence moderately moist; pH 3.8; clear and wavy change to:

Bs/Bhs165 – 220 cmBrown (10YR5/3) with many distinct dark brown (10YR3/3) mottles; cemented sand/coffee rock; massive; granular fabric; very strong consistence dry; ferruginised sandstone pan; pH 5.1; clear change to:

C1220 – 300 cmBrownish yellow (10YR6/4); sand; apedal; granular fabric; firm consistence moderately moist; few ferruginised sandstone; pH 4.5; clear change to:.
C2220 – 300 cmBrownish yellow (10YR6/4); sand; apedal; granular fabric; firm consistence moderately moist; few ferruginised sandstone; pH 4.5; clear change to:

Image: GW03profile 2m
GW03 Profile. 2 metres depth.
Shallower profiles occur in different topographic positions.
This profile is about 40m from the described profile.

Key Profile Features:

Soil Profile Characteristics:


pH

Salinity Rating
Surface
(A1 horizon)
Extremely Acid
Low
Non-Sodic
-
Subsoil
(Bh horizon)
Extremely Acid
Very Low
Non-Sodic
-
Deeper Subsoil
(Bs/Bsh horizon)
Strongly Acid
Low
Non-Sodic
-


Image: GW03 graphs
The soil profile is extremely acid.
The level of soluble salts is low to very low throughout the profile.Aluminium levels are high at 1 metre depth.Clay levels are low throughout the profile.


Horizon
Horizon Depth
(cm)
pH
(water)
pH
(CaCl2)
EC
dS/m
Total
Nitrogen
g/100g
Organic Carbon
g/100g
Exchangeable Cations
Ca
Mg
K
Na
Meq/100g
A1
0-35
4.2
3.5
0.08
0.22
5
3.6
1.1
<0.05
0.14
A2
35-115
4.4
4.2
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
Bh
115-165
3.8
3.2
0.006
0.98
0.11
0.32
<0.05
0.08
Bs/Bsh
165-220
5.1
4.9
0.06
0.2
0.11
<0.05
0.08
C1
220-300
4.5
4.3
<0.05
<0.05
0.08
<0.05
0.06
C2
300-320+


Horizon
Horizon Depth
(cm)
Exchangeable Aluminium
mg/kg
Exchangeable
Acidity
meq/100g
Field Capacitiy
pF 2.5
Wilting Point
pF4.2

Coarse Sand
(0.2-2.0mm)
%
Fine Sand
(0.02-0.2mm)
%
Silt
(0.002-0.02mm)
%
Clay
(<0.002mm)
%
A1
0-15
23
22
13.9
6.7
20.5
67.8
3
2
A2
15-30
<10
<1.0
2.9
0.6
27
68.8
3.5
0.5
B21
30-80
190
12
4.6
2.2
20
75.3
0
2.5
B22
80-120
30
9.3
7.6
4.8
27.4
59.8
0
9.0
76
2.2
3.5
2.2
19.4
75.3
0
4.0

Profile Described By: David Rees (March 2011).
CC BY 4.0 AU

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