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Profile Number 53

Laboratory number: 1003A study of the land in the Catchment of Gippsland Lakes - Vol 2 - Soil profile 53Profile Description
Site number:533A10-15 cmDark greyish brown (10YR 4/2) silty loam; apedal; earthy fabric; hard when dry; pH 4.5; clear boundary
Classification:Northcote (1979) – Dy3.41
Stace et al (1972) – Yellow Podzolic soil
A215-60 cmLight yellowish brown (10YR 6/4) silty loam; abundant distinct brownish yellow (5-15 mm) and grey mottles; apedal; earthy fabric; hard when dry; pH 4.5; clear boundary
Location:Moe 8121, grid ref. 309907 18 km N of MoeB160-75 cmYellowish brown (10YR 5/4) silty clay loam; distinct dark yellow brown (5-15 mm)and common distinct grey (<5 mm) mottles; moderate medium (15 mm) subangular blocky structure; rough-ped fabric; firm when moist; pH 5.0; clear boundary
Land system, component: Stewart, 1B275-80 cmDark brown to brown (10YR 4/3) silty clay; abundant distinct yellowish brown and few distinct dark grey (5-15 mm) mottles; strong coarse (25 mm) angular blocky structure; smooth-ped fabric; firm when moist; pH 5.0; clear boundary
Topography:Crest slope of hill, S aspect, 7% gradientC185-120 cmBrownish yellow (10YR 6/8) silty clay; abundant distinct white (>15 mm) mottles; structure uncertain; firm when moist; pH 5.0
Elevation:240 mC2120-140+ cmYellowish red (5YR 4/6) light clay; abundant distinct yellowish red and few prominent yellowish brown (5-15 mm) mottles; structure uncertain; slightly firm when moist
Drainage:Poor
Parent material:Devonian and Tertiary siltstone and mudstone
Vegetation:Woodland I: Eucalyptus consideniana with Leptospermum juniperinum, Epacris impressa, Pultenaea sp. and Gahnia radula common in the understorey
Remarks:Soil appears to be very silty, scattered mounds of clay dug up by land crabs may be indicative of poor drainage
LABORATORY ANALYSES 1003
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
S/cm
Cl-

%
Depth

cm
Composition

%
A1
0-10
SiL
2
3
3*9
37
15
4.8
42
0.006
A2
10-20
26
18
8
4.6
A2
20-30
SiL
3
3
38
43
17
5.1
20
0.004
B1
60-75
SiC
1
1
21
29
50
70
24
46
20
5.4
18
0.004
B2
75-85
C
0
<1
21
23
52
5.5
19
0.003
C
90-120
C
0
<1
19
19
62
45
28
17
8.0
5.6
17
0.003
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
A1
0-10
1.8
0.084
28
1.5
1
40
0.004
0.05
0.1
0.2
0.1
0.1
12.4
1
2
1
1
95
A2
10-20
A2
20-30
0.44
0.027
21
2.0
1
30
0.004
0.04
0.1
0.1
0.07
0.1
7.9
1
1
1
1
96
B1
60-75
3.1
0.004
0.15
0.05
1.7
0.08
0.2
16.6
<1
10
1
1
88
B2
75-85
3.9
0.004
0.16
C
90-120
2.3
0.004
0.26
0.07
2.0
0.1
0.3
18.5
<1
11
1
2
86
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