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Profile Number 40

Laboratory number: 1001 A study of the land in the Catchment of Gippsland Lakes - Vol 2 - Soil profile 40Profile Description
Site number:707A1 0 - 10 cm Very dark grey (10YR 3/1) clay loam; moderate crumb structure; rough-ped fabric; friable when moist; pH 6.0; gradual boundary
Classification:Northcote (1979) - Gn3.43
Stace et al (1972) – Wiesenboden
B110 - 40 cmDark grey (10YR 4/1) medium clay; common distinct yellowish brown (5 - 15 mm) mottles; moderate coarse (20 mm) angular blocky structure; smooth-ped fabric; very firm when moist; pH 7.0; gradual boundary
Location:Maffra 8222, grid ref. 901965 8 km E of HeyfieldB240 - 90 cmVery dark greyish (10YR 3/2) heavy clay; abundant prominent yellowish brown (>15 mm) mottles; moderate coarse (30 mm) angular blocky structure; smooth-ped fabric; very firm when moist; pH 8.0; gradual boundary
Land system, component: Maffra 1, 2C90 - 120+ cm Reddish brown (5YR 4/3) light-medium clay; common distinct yellowish brown and dark brown (5 - 15 mm) mottles; moderate coarse (20 mm) angular blocky structure; smooth-ped fabric; friable when moist; pH 9.0
Topography:Slight depression in plain, 1% slope
Elevation:10 m
Drainage:Poor
Parent material:Holocene fine-textured alluvium
Vegetation:Cleared; some remaining Eucalyptus tereticornis near site
LABORATORY ANALYSES 1001
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 - 10
20 - 30
60 - 90
SiCL
SiCL
C
5
17
7
3
2
3
20
20
18
36
28
24
33
39
52
39
55
21
22
18
33
11
14
6.0
6.7
8.8
92
150
590
0.002
0.014
0.024
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 - 10
2.6
0.23
15
42
280
0.023
0.38
5.5
3.9
0.8
0.6
20.8
26
19
4
3
48
20 - 30
1.1
0.11
13
9
180
0.014
0.44
6.0
5.0
0.5
1.3
18.8
32
27
3
7
21
60 - 90
3
120
0.012
0.77
6.2
10.0
0.4
5.0
22.8
27
44
2
22
5
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