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Profile Number 7

Laboratory number: 0982 A study of the land in the Catchment of Gippsland Lakes - Vol 2 - Soil profile 7Profile Description
Site number:556A10 - 20 cmBlack (10YR 2/1) gravelly organic loam; strong crumb structure; rough-ped fabric; slightly hard when dry; 10% bedrock fragments (8 mm); pH 3.7; clear wavy boundary
Classification:Northcote (1979) - Um7.11
Stace et al. (1972) - Alpine Humus Soil
AC 20 - 35 cmDark brown (7.5YR 3/2) gravelly loam; weak crumb structure; rough-ped fabric; soft when dry; 10% bedrock fragments (8 mm); pH 4.7; clear wavy boundary
Location:Dargo 8323, grid ref. 075034
Road cutting near Mount Saint Bernard, 13 km SE of Harrietville
C35 - 56 cmBrown (7.5YR 4/4) gravelly sandy loam; apedal; earthy fabric; soft when dry; 60% bedrock fragments (20 mm); pH 5.5
Land system, component: Birregun, 3C56 - 150 cmNot described
Topography:Upper mountain slope, NNE aspect, 45% gradientR150+ cmBedrock
Elevation:1400 m
Drainage:Good
Parent material:Sandstone and siltstone
Vegetation:Open forest II: Eucalyptus delegatensis with a relatively sparse shrub layer and with Poa sp. predominant in the herb layer
LABORATORY ANALYSES 982
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
AC
C
0 - 10
20 - 30
35 - 56
CL
SiL
L
28
38
73
17
15
16
21
23
28
18
29
24
27
23
18
69
51
18
9.4
4.3
4.8
5.1
52
30
27
0.004
0.003
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
13.6
0.83
21
3.1
23
160
0.042
0.21
0.04
<0.01
0.6
0.01
105.0
<1
<1
1
<1
99
AC
20 - 30
6.1
0.46
17
4.4
15
80
0.046
0.22
0.06
<0.01
0.3
0.01
69.0
<1
<1
<1
<1
99
C
35 - 56
4.6
0.063
0.30
<0.01
<0.01
0.2
<0.01
36.0
<1
<1
1
<1
99
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