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Profile Number 20

Laboratory number: 0949 A study of the land in the Catchment of Gippsland Lakes - Vol 2 - Soil profile 20Profile Description
Site number:396A11 0 - 10 cmVery dark greyish brown (10YR 3/2) fine sandy loam; moderate coarse (10 mm) crumb structure; rough-ped fabric; soft when dry; common grass roots; pH 6.0; clear smooth boundary
Classification:Northcote (1979) - Uc4.32Al2 10 - 20 cmDark brown (10YR 3/3) fine sandy loam; apedal; earthy fabric; soft when dry; common roots; pH 5.0; clear smooth boundary
Location:Stace et al (1972) - Siliceous Sand Sale 8321, grid ref. 102877 7 km NE of SaleA220 - 30 cmDark brown to brown (7.5YR 4/4) sandy loam; apedal; earthy fabric; hard when dry; 2% ferruginous nodules up to 5 mm; few roots; pH 5.5; clear boundary
Land system, component: Nuntin, 1B230 - 42 cmStrong brown (7.5YR 4/6) loamy sand; common distinct reddish brown (5 - 15 mm) mottles; apedal; earthy fabric; very hard when dry; 2% ferruginous nodules up to 5 mm; pH 6.5; clear smooth boundary
Topography:Depression below sandy rise, 1% slopeC142 - 105 cmStrong brown (7.5YR 4/6) sandy loam; abundant distinct reddish brown (>15 mm) mottles; weak coarse (20 mm) subangular blocky structure; rough-ped fabric; very firm when moist; few roots; pH 7.5; clear wavy boundary
Elevation:20 mC2105 - 180 cmBrown (7.5YR 5/4) very fine sandy clay loam; distinct yellowish brown (>15 mm) mottles; apedal; earthy fabric; friable when moist; pH 8.5
Drainage:-
Parent material:Pleistocene fine-textured alluvium
Vegetation:Cleared; grassland with Dactylis glomerata, Bromus catharticus, Cynodon dactylon
LABORATORY ANALYSES 949
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

%
All
0 - 10
SL
0
20
53
10
11
5.7
210
0.031
Al2
10 - 20
LS
0
24
54
12
9
5.5
61
0.003
A2
20 - 30
LS
0
23
55
12
9
5.1
35
0.001
B2
30 - 42
LS
1
24
56
12
7
5.1
23
0.001
Cl
42 - 60
L
1
21
54
12
12
5.7
30
0.002
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
All
0 - 10
2.54
0.22
15
1.7
20
560
0.023
0.23
1.8
1.2
1.6
0.5
12.6
14
10
13
4
59
Al2
10 - 20
1.63
0.14
15
1.9
9
420
0.017
0.19
0.7
0.3
1.2
0.4
11.7
6
3
10
3
79
A2
20 - 30
0.84
0.069
16
2.1
6
220
0.013
0.15
0.5
0.1
0.6
0.2
8.2
6
1
7
2
84
B2
30 - 42
2.5
0.009
0.13
0.5
0.05
0.4
0.1
4.9
10
1
8
2
79
Cl
42 - 60
2.7
0.010
0.21
1.1
1.0
0.3
0.2
6.2
18
16
5
3
58
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