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Profile Number 62

Laboratory number: 0957A study of the land in the Catchment of Gippsland Lakes - Vol 2 - Soil profile 62Profile Description
Site number:404A10-15 cmVery dark greyish brown (10YR 3/2) sandy loam; moderate crumb structure; earthy fabric; friable when moist; 40% quartz gravel up to 20 mm; abundant fine roots; pH 5.5-6.0; diffuse boundary
Classification:Northcote (1979) – Dy3.21
Stace et al (1972) - Soloth
A215-50 cmYellowish brown (10YR 5/4) loamy sand; apedal; earthy fabric; soft when dry; 60% quartz gravel up to 30 mm; abundant fine roots; pH 6.0; abrupt smooth boundary
Location:Bairnsdale 8422, grid ref. 528108
2 km S of Bairnsdale
B2150-75 cmYellowish brown (10YR 5/6) heavy clay; common distinct reddish brown (>15 mm) mottles; strong coarse (30 mm) angular blocky structure; smooth-ped fabric; extremely hard when dry; 5% fine quartz gravel up to 3 mm; pH 7.0; clear smooth boundary
Land system, component: Salt Creek 2B2275-120 cmYellowish brown (10YR 5/5) heavy clay; common distinct reddish brown (>15 mm) mottles; moderate very coarse (80 mm) angular blocky structure; smooth-ped fabric; extremely hard when dry; 5% fine quartz gravel up to 5 mm; pH 7.5; diffuse wavy boundary
Topography:5% slope on Pleistocene terrace, NW aspectC120+ cmBrownish yellow (10YR 6/6) light medium to light clay; common prominent yellowish brown (>15 mm) mottles; strong coarse (30 mm) angular blocky structure; smooth-ped fabric very firm when moist; 2% fine quartz gravel up to 5 mm’ pH 6.0
Elevation:20 m
Drainage:Good
Parent material:Tertiary and Pleistocene alluvium of mixed texture
Vegetation:Cleared; grassland with Themeda australis, Plantago lanceolata, Holcua lanatus and Briza maxima
LABORATORY ANALYSES 957
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
LS
16
24
49
16
9
4.8
51
0.004
A2
30-50
LS
57
28
51
13
6
13.9
13.5
0.4
0.6
5.6
22
0.002
B21
60-75
C
7
8
17
4
70
73
21
52
15
6.4
150
0.013
B22
90-120
C
7
11
24
8
56
5.5
170
0.013
C
150-180
SiC
20
1
13
34
52
4.9
240
0.026
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
1.88
0.16
15
0.9
15
60
0.012
0.068
1.7
0.8
0.2
0.1
12.5
14
6
2
1
77
A2
30-50
0.5
0.005
0.047
1.0
0.4
0.1
0.1
2.9
34
14
3
3
46
B21
60-75
5.5
0.013
0.39
2.9
8.2
0.2
3.1
23.7
12
35
1
13
39
B22
90-120
4.3
0.007
0.38
1.2
6.9
0.2
3.0
18.7
6
37
1
16
40
C
150-180
5.4
0.012
0.49
0.5
7.4
0.2
4.7
20.0
3
37
1
24
35
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