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Profile Number 34

Laboratory number: 0959 A study of the land in the Catchment of Gippsland Lakes - Vol 2 - Soil profile 34Profile Description
Site number:472A1 0 - 5 cmVery dark greyish brown (10YR 3/2) clay loam; moderate medium (15 mm) subangular blocky structure; rough-ped fabric; friable when moist; pH 4.7; clear boundary
Classification:Northcote (1979) - Gn3.21
Stace et al. (1972) - Brown Earth
B15 - 30 cmDark brown (10YR 4/3) silty clay loam; moderate medium to coarse (20 mm) subangular blocky structure; rough-ped fabric; firm when moist; 2% rock fragments up to 10 mm; pH 5.0
Location:Moe 8121, grid ref. 488425 17 km S of ChurchillB230 - 110 cmDark brown (10YR 4/3) silty clay; few faint yellowish brown (<5 mm) mottles; strong coarse (25 mm) angular blocky structure; smooth-ped fabric; firm when moist; pH 5.0
Land system, component: Gunyah, 1C110 - 120+ cmYellowish brown (10YR 5/4) silty clay; common faint dark yellowish brown (<5 mm) mottles; weak coarse (50 mm) subangular blocky structure; rough-ped fabric; firm when moist; 5% rock fragments up to 8 mm; pH 5.0
Topography:Mid-slope of hill, 45% gradient
Elevation:440 m
Drainage:Good
Parent material:Cretaceous mudstone and siltstone
Vegetation:Shrubby open forest II: Eucalyptus regnans with Acacia melanoxylon, Cassinia aculeata, Pomaderris
aspera, Olearia argophylla, Goodenia ovata and Tetrarrhena juncea common in understorey
LABORATORY ANALYSES 959
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 - 5
SiCL
2
11
23
32
29
69
45
24
10
4.8
120
0.010
B1
10 - 20
SiCL
0
3
19
37
38
4.9
49
0.006
B2
60 - 90
SiC
0
1
16
32
49
59
31
28
14
5.0
50
0.006
C
110 - 120
SiC
0
2
17
33
45
4.9
49
0.006
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 - 5
11.2
0.44
33
2.6
270
580
0.11
0.39
1.7
1.7
1.5
0.4
60.4
3
3
2
1
91
Bl
10 - 20
2.6
0.21
16
3.0
6
120
0.025
0.36
0.7
0.8
0.4
0.3
29.7
2
3
1
1
93
B2
60 - 90
3.5
0.017
0.37
0.6
0.7
0.6
0.3
28.0
2
3
2
1
92
C
110 - 120
4.0
0.022
0.37
0.5
0.6
0.6
0.2
28.1
2
2
2
1
93
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