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Profile Number 36

Laboratory number: 1002 A study of the land in the Catchment of Gippsland Lakes - Vol 2 - Soil profile 36Profile Description
Site number:522A10 - 8 cmDark reddish brown (5YR 2/2) loam; strong crumb structure; rough-ped fabric; hard when dry; abundant roots; pH 4.0; clear wavy boundary
Classification:Northcote (1979) - Gn4.11 Stace et al. (1972) – KrasnozemB21 8 - 44 cmDark reddish brown (5YR 3/3) clay loam; moderate fine (8 mm) subangular blocky structure; rough-ped fabric; slightly hard when dry; common roots; pH 5.0; gradual wavy boundary
Location:Omeo 8423, grid ref. 564578 20 km SW of Swifts CreekB22 44 - 180+ cmDark red (2.5YR 3/6) light clay; moderate fine (8 mm) angular blocky structure; rough-ped fabric; slightly hard when dry; common roots to 90 cm depth, few between 90 - 180 cm; 5% small fragments of parent rock (about 3 mm); pH 6.0
Land system, component: Jamieson, 3
Topography:Upper slope of ridge, 8% gradient
Elevation:880 m
Drainage:Good
Parent material:Ordovician mudstone and sandstone
Vegetation:Layered open forest III: Eucalyptus obliqua, E. delegatensis and Acacia dealbata. Olearia argophylla, Bedfordia arborescens, Pteridium
esculentum, Tetrarrhena juncea and Poa sp. predominant in understorey
LABORATORY ANALYSES 1002
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

%
0 - 8
10 - 20
30 - 44
60 - 90
120 - 150
SiL
SiL
SiL
C
C
18
4
5
18
14
11
8
5
4
5
32
39
36
25
26
30
28
36
22
23
19
22
21
46
44
59
30
29
16
5.0
5.2
5.3
5.2
5.2
37
17
14
13
12
0.005
0.003
0.003
0.002
0.002
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
0 - 8
10 - 20
30 - 44
60 - 90
120 - 150
10.6
6.5
0.63
0.41
22
21
4.1
4.6
4.5
4.6
4.9
16
10
200
120
0.035
0.025
0.023
0.021
0.021
0.22
0.17
0.18
0.20
0.17
0.4
<0.05
0.1
0.1
0.07
0.2
0.08
0.01
0.07
0.01
0.7
0.6
0.5
0.4
0.4
0.09
0.1
0.09
0.04
0.05
81.5
68.1
53.5
29.3
23.3
1
<1
<1
<1
<1
<1
<1
<1
<1
<1
1
1
1
1
2
<1
1
<1
<1
<1
98
98
99
99
98
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