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Profile Number 4

Laboratory number: 0987 A study of the land in the Catchment of Gippsland Lakes - Vol 2 - Soil profile 4Profile Description
Site number:10350130 - 20 cmBlack (10YR 2/1) fibrous fine sandy loam; apedal; earthy fabric; slightly plastic when wet; common mica; pH 4.5; gradual boundary
Classification:Northcote (1979) - Uc5.21
Stace et al. (1972) - Alpine Humus Soil - Acid
Peat Intergrade
0220 - 0 cmVery dark brown (10YR 2/2) organic fine sandy loam becoming coarse sandy loam at depth; apedal; earthy fabric; slightly plastic when wet; common mica; pH 5.0; clear boundary
Location:Matlock 8122, grid ref. 384126
0.4 km E of Mount Saint Phillack
B20 - 20 cm Dark yellowish brown (10YR 3/4) loamy coarse sand; apedal; earthy fabric; slightly plastic when wet; abundant feldspar and mica; pH 5.5; abrupt boundary
Land system, component: Baw Baw, 3C120 - 60 cmPale brown (10YR 6/3) loamy coarse sand; apedal; earthy fabric; slightly plastic when wet; abundant feldspar and mica; pH 5.8; gradual boundary
Topography:5% slope facing S on colluvial apronC260 - 90 cmLight brownish grey (10YR 6/2) loamy coarse sand; apedal; earthy fabric; non-sticky when wet; abundant feldspar and mica; pH 5.8
Elevation:1420 m
Drainage:Poor
Parent material:Colluvium from Devonian granodiorite
Vegetation:Open heathland with Richea continentis, Epacris paludosa, Poa sp. and Danthonia sp.
Remarks:20% surface rock. Almost entire profile saturated at time of sampling (April)
LABORATORY ANALYSES 987
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

%
01
30 - 20
SL
4
33
15
6
18
4.6
250
0.024
02
20 - 0
LS
26
56
28
5
7
4.9
29
0.002
B2
0 - 20
LS
18
64
23
5
7
5.0
21
0.002
Cl
20 - 30
SL
5
55
20
8
15
5.0
19
0.002
C2
60 - 90
SL
7
57
21
8
10
5.1
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
01
30 - 20
15.2
0.70
28
31
340
0.032
0.14
0.2
0.3
0.9
0.8
46.4
<1
1
2
2
95
02
20 - 0
3.0
0.15
26
11
50
0.019
0.16
0.06
0.06
0.1
0.02
24.2
<1
<1
<1
<1
99
B2
0 - 20
16
40
0.033
0.26
0.07
0.07
0.1
0.01
28.1
<1
<1
<1
<1
99
Cl
20 - 30
0.06
0.03
0.06
<0.01
20.5
<1
<1
<1
<1
99
C2
60 - 90
0.04
<0.01
0.08
<0.01
21.0
<1
<1
<1
<1
99
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