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Profile Number 28

Laboratory number: 0942 A study of the land in the Catchment of Gippsland Lakes - Vol 2 - Soil profile 28Profile Description
Site number:389All0 - 3 cmVery dark grey (10YR 3/1) silty clay loam; common distinct yellowish brown (5 - 15 mm) mottles; moderate medium (10 mm) subangular blocky structure; rough-ped fabric; porous; slightly hard when thy; abundant grass roots; pH 6.0; clear smooth boundary
Classification:Northcote (1979) - Uf6.41Al2 3 - 20 cmVery dark grey (10YR 3/1) medium clay; common distinct yellowish brown (5 - 15 mm) mottles; moderate prismatic (80 mm) structure; rough-ped fabric; porous; very hard when dry; common grass roots; pH 8.0; clear smooth boundary
Location:Stace et al. (1972) - Humic Gley
Traralgon 8221, grid ref. 898837 11 km NE of Rosedale
B220 - 60 cmDark grey (2.5Y 4/1) heavy clay; common prominent yellowish brown (5 - 15 mm) mottles; strong medium (10 mm) angular blocky structure; smooth-ped fabric; porous; very firm when moist; few roots; irregular boundary
Land system, component: Nambrok, 2B360 - 115 cmYellowish brown (10YR 5/6) heavy clay; common prominent grey (<5 mm) mottles; strong fine (5 mm) angular blocky structure; smooth-ped fabric; very firm when moist; few roots; pH 9.5; clear wavy boundary
Topography:Drainage depression on alluvial terrace, 0% slopeC115 - 150 cmYellowish brown (10YR 5/6) heavy clay; common prominent grey (5 - 15 mm) mottles; moderate coarse (20 mm) angular blocky structure; smooth-ped fabric; very firm when moist; few roots; pH 9.5
Elevation:20 m
Drainage:Poor
Parent material:Pleistocene fine-textured alluvium
Vegetation:Cleared; mostly grasses, rushes and sedges
Remarks:Watertable at 174 cm at time of sampling (July)
LABORATORY ANALYSES 942
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

%
All
Al2
B2
B3
C
0 - 3
10 - 20
30 - 60
60 - 90
120 - 150
SiC
SiC
SiC
C
SiC
1
0
0
1
1
1
<1
1
1
<1
12
10
7
5
4
34
36
27
23
29
41
49
63
70
66
59
15
44
14
5.8
8.1
9.3
9.2
8.5
830
530
1400
1400
480
0.10
0.059
0.15
0.15
0.051
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
All
0 - 3
6.63
0.57
15
1.3
68
420
0.047
0.51
3.9
8.2
1.6
3.9
33.7
12
24
5
12
47
Al2
10 - 20
1.23
0.13
12
1.8
3
220
0.011
0.61
2.9
8.4
0.8
5.2
20.9
14
40
4
25
17
B2
30 - 60
2.2
0.009
0.71
2.7
9.8
1.0
11.6
25.6
11
38
4
45
2
B3
60 - 90
2.5
0.008
0.85
2.7
9.6
0.5
9.3
22.1
12
44
2
42
0
C
120 - 150
2.7
0.008
0.71
2.1
10.6
0.3
6.5
20.0
11
53
2
33
1
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