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Profile Number 18

Laboratory number: 0961 A study of the land in the Catchment of Gippsland Lakes - Vol 2 - Soil profile 18Profile Description
Site number:479A10 - 25 cmVery dark greyish brown (10YR 3/2) sandy loam; weak crumb structure; rough-ped fabric; friable when moist; pH 8.0; diffuse boundary
Classification:Northcote (1979) - Uc1.43
Stace et al. (1972) - Alluvial Soil
C25 - 150+ cmDark brown (10YR 3/3) loamy sand; apedal; earthy fabric; friable when moist; pH 6.5 increasing to pH 7.0 at 150 cm
Location:Stratford 8322, grid ref. 191478
8 km S of Dargo on Wonnangatta River
Land system, component: Walnut, 1
Topography:Modern river terrace, 1% slope
Elevation:220 m
Drainage:Good
Parent material:Holocene coarse-textured alluvium
Vegetation:Cleared; mostly introduced grasses with occasional Eucalyptus melliodora, E. viminalis and Acacia dealbata
LABORATORY ANALYSES 955
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
LS
1
19
57
14
7
6.4
120
0.012
Al
20 - 25
LS
0
16
67
12
3
6.3
32
0.003
C
30 - 60
LS
0
15
70
9
6
6.5
23
0.002
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
2.3
0.22
14
1.1
22
560
0.035
0.32
3.9
2.0
1.3
0.01
13.8
28
15
9
<1
48
Al
20 - 25
0.82
0.064
17
1.3
17
300
0.030
0.30
2.9
1.1
0.6
<0.01
9.7
30
11
6
<1
63
C
30 - 60
0.56
0.047
15
1.2
9
220
0.026
0.32
3.3
0.9
0.4
<0.01
8.6
38
11
5
<1
46
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