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Profile Number 45

Laboratory number: 0974A study of the land in the Catchment of Gippsland Lakes - Vol 2 - Soil profile 45Profile Description
Site number:492A10-27 cmDark brown (7.5YR 3/2) sandy loam; apedal earthy fabric; hard when dry; 5% granite fragments up to 8 mm; pH 6.0;clear wavy boundary
Classification:Northcote (1979) – Dr2.22
Stace et al (1972) – Red Podzolic Soil		A227-50 cmStrong brown (7.5YR 5/6) gritty sandy loam; apedal; earthy fabric; hard when dry; 15% granite fragments up to 800; pH 6.0; clear wavy boundary
Location:Omeo 8423, grid ref, 778622 20 km SE of Swifts Creek, 4 km SE of EnsayB250-80 cmYellowish red (5YR 5/6) sandy clay; moderate coarse (25 mm) angular blocky structure; smooth-ped fabric; firm when moist; 25% quartz and weathering feldspar crystals up to 3 mm and dark mica grains; pH 7.0
Land system, component: Dargo 1C80-90+ cmStrong brown (7.5YR 5/6) sandy clay loam; moderate medium (20 mm) angular blocky structure; smooth-ped fabric; friable when moist; pH 7.0
Topography:Lower hillslope, E aspect, 37% gradient
Elevation:280 m
Drainage:Moderate
Parent material:Palaeozoic granite
Vegetation:Cleared; predominantly introduced herbs and grasses with scattered Eucalyptus bridgesiana, Acacia melanoxylon and A. mearnsii
LABORATORY ANALYSES 974
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
25°C
uS/cm
Cl-

%
Depth

cm
Composition

%
Al
0 - 10
SL
6
31
43
10
13
5.9
33
0.002
Al
10 - 20
12
30
19
11
5.6
A2
30 - 50
SL
22
37
42
11
11
6.7
15
0.002
B2
60 - 80
CL
18
30
25
15
31
64
23
41
15
7.0
19
0.002
C
80 - 90
CL
5
29
27
14
28
7.1
20
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
2.2
0.16
18
1.1
19
220
0.029
0.16
4.0
1.0
0.5
0.05
13.7
29
7
4
<1
60
Al
10 - 20
A2
30 - 50
1.4
0.026
0.16
4.4
0.8
0.3
0.08
7.8
56
10
4
1
29
B2
60 - 80
3.3
0.043
0.23
10.6
2.5
0.5
0.3
18.2
58
14
3
2
23
C
80 - 90
4.0
0.031
0.18
11.3
2.9
0.5
0.4
19.9
57
15
3
2
23
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