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Profile Number 23

Laboratory number: 0941A study of the land in the Catchment of Gippsland Lakes - Vol 2 - Soil profile 23Profile Description
Site number:388A10 - 25 cmBlack (10YR 2/1) silty loam; moderate medium (10 mm) subangular blocky structure; rough-ped fabric; hard when dry; abundant roots; pH 5.5; clear wavy boundary
Classification:Northcote (1979) - Um6.21 Stace et al. (1972) - Prairie SoiAC 25 - 72 cmVery dark greyish brown (10YR 3/2) fine sandy clay loam; weak coarse (30 mm) subangular blocky structure; rough-ped fabric; very hard when dry; abundant roots; pH 6.0; diffuse wavy boundary
Location:Sale 8321, grid ref. 010847 6 km NW of SaleC1 72 - 105 cm Dark brown (10YR 3/3) fine sandy clay loam; apedal; earthy fabric; hard when dry; pH 6.5; clear smooth boundary
Land system, component: Thomson, 3IIC2 105 - 150 cmDark brown to brown (10YR 4/3) sand; few distinct yellowish brown (5 - 15 mm) mottles; apedal; sandy fabric; hard when dry; pH 6.5; clear smooth boundary
Topography:River levee, 0% slopeIIIB2 150 - 170 cmReddish brown (5YR 4/3) sandy clay; common distinct yellowish brown (>15 mm) mottles; moderate coarse (50 mm) subangular blocky structure; rough-ped fabric; hard when dry; pH 7.0
Elevation:20 m
Drainage:Good
Parent material:Holocene fine-textured alluvium
Vegetation:Cleared; mostly introduced grasses with occasional Eucalyptus tereticornis and Acacia mearnsii
LABORATORY ANALYSES 941
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
L
0
10
56
12
17
5.6
74
0.005
Al
20 - 25
L
0
5
56
15
22
6.0
39
0.003
AC
30 - 60
L
0
7
57
17
19
6.7
22
0.001
Cl
72 - 90
L
0
12
60
13
15
7.3
21
0.001
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
2.98
0.27
14
1.3
12
140
0.027
0.26
3.0
2.1
0.4
0.3
17.0
18
12
2
2
66
Al
20 - 25
1.95
0.19
13
1.3
6
40
0.027
0.29
3.9
2.0
0.2
0.4
17.3
23
12
1
2
62
AC
30 - 60
1.4
0.019
0.28
3.6
2.4
0.1
0.3
10.9
33
22
1
3
41
Cl
72 - 90
1.3
0.015
0.19
2.1
2.1
0.1
0.3
7.5
28
28
1
4
39
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