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Profile Number 21

Laboratory number: 0963A study of the land in the Catchment of Gippsland Lakes - Vol 2 - Soil profile 21Profile Description
Site number:481A10 - 10 cmVery dark greyish brown (10YR 3/2) loam; medium crumb structure; rough-ped fabric; very hard when dry; pH 6.0; clear boundary
Classification:Northcote (1979) - Um4.31
Stace et al. (1972) - Non-calcic Brown Soil
A310 - 20 cmDark brown (7.5YR 3/2) silty loam; weak coarse angular blocky structure (30 mm); rough-ped fabric; very hard when dry; pH 6.0; clear boundary
Location:Maffra 8222; grid ref. 672344
1 km SE of Licola on Licola-Heyfield Road
B120 - 30 cmDark reddish brown (5YR 3/2) silty loam; weak coarse angular blocky structure (30 mm); rough-ped fabric; very firm when moist; pH 6.5; clear boundary
Land system, component: Walnut, 2B230 - 70 cmDark reddish brown (5YR 3/3) silty clay loam; weak coarse angular blocky structure (40 mm); rough-ped fabric; very firm when moist; pH 8.0; abrupt boundary
Topography:Alluvial terrace, 1% slopeC170 - 90 cmDark reddish brown (5YR 3/4) loam; apedal; earthy fabric; firm when moist; pH 8.5; gradual boundary
Elevation:200 mC290 - 150+ cmDark reddish brown (5YR 3/4) sand; apedal; earthy fabric; firm when moist; pH 8.5
Drainage:Good
Parent material:Holocene fine-textured alluvium
Vegetation:Cleared; mainly introduced grasses with scattered Eucalyptus melliodora
LABORATORY ANALYSES 963
Horizon
Sample
Depth

cm
Lab.
texture
Particle size distribution
Atterberg limits
1:5 soil water suspension
Clay mineralogy by x-ray diffraction
Gravel

%
Coarse
sand
% f.e.
fine sand

% f.e.
Silt

% f.e.
Clay

% f.e.
liquid
limit
%
plastic
limit
%
plasticity
index
%
linear
shrinkage
%
pH
EC
25C
uS/cm
Cl-

%
Depth

cm
Composition

%
Al
0 - 10
SiL
1
5
45
25
23
6.0
110
0.006
A3
10 - 20
SiL
1
1
46
27
24
6.1
42
0.003
Bl
20 - 30
SiL
0
1
45
28
25
31
19
12
6.8
6.2
33
0.003
B2
30 - 60
SiCL
0
1
45
26
28
30
22
8
7.0
6.6
32
0.003
CI
70 - 90
L
1
1
57
20
23
8.5
80
0.004
Horizon
Sample
Depth

cm
Org. C


%
Total N


%
1.3C
N
Free
Fe2O3

%
Available
HCl extract
Exchangeable cations
P
ppm
K
ppm
P
%
K
%
Ca
Mg
K
Na
CEC
Ca
% of CEC
Mg
K
Na
H
Milliequivalents/100g
Al
0 - 10
4.1
0.40
13
1.4
57
600
0.065
0.44
6.1
2.6
1.4
0.05
26.7
23
10
5
<1
62
A3
10 - 20
1.8
0.17
14
1.6
39
400
0.049
0.40
4.6
2.0
1.0
0.07
20.8
22
10
5
<1
63
Bl
20 - 30
0.90
0.096
12
1.7
39
320
0.054
0.45
4.8
2.3
0.8
0.05
17.8
27
13
5
<1
55
B2
30 - 60
1.9
0.051
0.46
5.8
4.0
0.4
0.2
17.2
34
23
2
1
40
Cl
70 - 90
1.5
0.035
0.32
4.4
4.0
0.2
0.3
10.7
41
37
2
3
17
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