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Profile Number 14

Laboratory number: 1005A study of the land in the Catchment of Gippsland Lakes - Vol 2 - Soil profile 14Profile Description
Site number:723A10 - 20 cmVery dark greyish brown (10YR 3/2) light clay; moderate crumb structure; rough-ped fabric; hard when dry; abundant roots; 5% bedrock fragments up to 5 mm; pH 5.5; smooth boundary
Classification:Northcote (1979) - Uf6.11
Stace et al.(1972) - Brown Earth
B21 20 - 60 cmVery dark greyish brown (10YR 3/2) medium clay; moderate fine (6 mm) subangular blocky structure; rough-ped fabric; firm when moist; many roots; 5% bedrock fragments up to 5 mm; pH 5.0; smooth boundary
Location:Moe 8121, grid ref. 546487
Road cutting 12 km SE of Churchill
B22 60 - 70 cmDark brown (10 YR 3/3) medium clay; moderate fine (6 mm) subangular blocky structure; rough-ped fabric; firm when moist; many roots; 10% bedrock fragments up to 10 mm; pH 4.5; smooth boundary
Land system, component: Gunyah, 1C70 - 120+ cmDark yellowish brown (10YR 4/4) medium clay; moderate fine (6 mm) angular blocky structure; rough-ped fabric; firm when moist; 70% soft Cretaceous mudstone fragments up to 50 mm; pH 4.0
Topography:40% hillslope facing NE
Elevation:640 m
Drainage:Good
Parent material:Cretaceous mudstone and siltstone
Vegetation:Shrubby woodland II: Acacia dealbata, Prostanthera lasianthos, Pittosporum bicolor and Cassinia aculeata
LABORATORY ANALYSES 1005
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
C
18
8
15
23
42
4.4
79
0.004
Al
10 - 18
C
17
5
13
24
50
4.3
59
0.003
B21
20 - 30
C
5
3
13
23
51
4.6
52
0.002
B21
30 - 60
6
73
40
33
16
B22
60 - 70
C
9
5
14
23
55
4.5
46
0.002
C
90 - 120
C
0
11
24
24
36
4.5
43
0.003
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
5.5
0.43
17
3.4
14
480
0.032
0.39
0.5
1.1
1.3
0.2
48.4
1.
2
3
<1
94
Al
10 - 18
4.7
0.37
17
3.3
12
360
0.027
0.44
0.06
0.3
1.0
0.2
46.9
<1
1
2
<1
97
B21
20 - 30
3.8
0.32
15
3.2
7
340
0.022
0.44
<0.01
0.2
1.0
0.2
44.2
<1
<1
2
<1
98
B21
30 - 60
B22
60 - 70
3.6
0.022
0.39
<0.01
0.08
0.5
0.2
37.6
<1
<1
1
1
98
C
90 - 120
3.3
0.036
0.44
0.02
0.07
0.4
0.2
35.0
<1
<1
1
1
98
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