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Profile Number 26

Laboratory number: 0936 A study of the land in the Catchment of Gippsland Lakes - Vol 2 - Soil profile 26Profile Description
Site number:383All 0 - 15 cmVery dark greyish brown (10YR 3/2) clay loam; moderate medium (3 mm) crumb structure; rough-ped fabric; slightly hard when dry; abundant roots; pH 5.7; clear wavy boundary
Classification:Northcote (1979) - Uf6.11
Stace et al. (1972) – Wiesenboden
Al2 15 - 38 cmVery dark greyish brown (10YR 3/2) medium clay; moderate fine to medium (5 - 10 mm) angular blocky structure; rough-ped fabric; hard when dry; abundant roots; pH 5.7; clear wavy boundary
Location:Maffra 8222, grid ref. 961974 2 km W of MaffraC138 - 95 cmVery dark grey (10YR 3/1) heavy clay; abundant distinct yellowish brown (5 - 15 mm) mottles; strong fine to medium (8 - 12 mm) angular blocky to moderate coarse (35 mm) angular blocky structure; rough-ped fabric; hard when dry; pH 7.0; clear wavy boundary
Land system, component: Maffra 1, 2C2 95 - 150 cmDark brown (7.5YR 4/4) sandy clay; abundant faint grey (5 - 15 mm) mottles; angular block structure; earthy fabric; firm when moist; few roots; pH 9.0
Topography:1% slope on alluvial terrace
Elevation:20 m
Drainage:Moderate
Parent material:Holocene fine-textured alluvium
Vegetation:Cleared; grassland predominantly of Phalaris aquatica
LABORATORY ANALYSES 936
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
SiCL
3
4
21
30
35
5.4
120
0.011
20 - 30
SiC
0
3
17
31
45
5.6
62
0.005
38 - 60
0
41
23
18
10
60 - 90
SiCL
0
1
26
37
37
8.0
390
0.045
95 - 120
L
0
<1
58
21
20
8.8
440
0.054
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
6.96
0.46
20
2.0
20
280
0.046
0.50
5.5
4.7
0.7
0.7
32.5
17
14
2
2
65
20 - 30
2.85
0.26
14
2.5
12
90
0.039
0.54
5.8
4.4
0.2
0.8
29.9
19
15
1
3
62
38-60
60 - 90
2.6
0.014
0.44
5.0
7.2
0.08
4.3
17.4
29
41
<1
25
5
95 - 120
1.8
0.009
0.33
1.9
4.1
0.2
3.2
9.4
20
44
2
34
0
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