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Profile Number 22

Laboratory number: 0972 A study of the land in the Catchment of Gippsland Lakes - Vol 2 - Soil profile 22Profile Description
Site number:49002 7 - 0 cmLoam; moderate crumb structure; rough-ped fabric; abundant roots; pH 4.0; abrupt wavy boundary
Classification:Northcote (1979) - Um5.52 Stace et al. (1972) - Alluvial SoilA11 0 - 4 cmDark brown (10YR 3/3) fine sandy clay loam; apedal; earthy fabric; slightly hard when dry; abundant roots; pH 4.0; abrupt wavy boundary
Location:Omeo 8423, grid ref. 633778 3 km N of The WalnutsAl24 - 37 cmVery dark greyish brown (10YR 3/2) fine sandy clay loam; apedal; earthy fabric; slightly hard when dry; common roots; pH 7.0; clear wavy boundary
Land system, component: Walnut, 1C137 - 80 cmDark brown to brown (10YR 4/3) sandy loam; apedal; soft when dry; unevenly distributed organic staining; common roots; pH 8.0; clear wavy boundary
Topography:Alluvial terrace, 0% slopeC280 - 90 cmDark brown to brown (10YR 4/3) gravelly sand; apedal; sandy fabric; soft when dry; 60% fine gravel (3 mm); pH 8.5; wavy boundary
Elevation:320 mC390 - 100+ cmVery dark greyish brown (10YR 3/2) silty clay loam; common distinct yellowish brown (5 - 15 mm) mottles; apedal; earthy fabric; soft when dry; pH 8.0
Drainage:Good
Parent material:Holocene fine-textured alluvium
Vegetation:Cleared; grassland, mostly with introduced species and occasional Eucalyptus melliodora and E. viminalis. (Original vegetation probably an open forest III)
LABORATORY ANALYSES 972
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

%
7 - 0
0 - 4
10 - 20
30 - 60
80 - 90
L
L
L
LS
0
2
3
0
10
5
5
6
15
26
52
51
69
16
21
21
5
17
21
18
8
44
19
32
14
12
5
8.4
1.6
5.4
6.4
7.3
8.0
380
120
78
56
0.014
0.011
0.006
0.004
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
7 - 0
22.0
1.74
16
0.9
155
800
0.073
0.44
14.7
4.7
2.1
0.1
60.4
24
8
3
<1
65
0 - 4
2.7
0.23
15
1.5
140
640
0.066
0.58
9.4
2.4
1.6
0.09
21.5
44
11
7
<1
38
10 - 20
1.0
0.10
13
1.5
115
780
0.060
0.64
7.8
2.3
1.0
0.08
15.8
49
15
6
1
29
30 - 60
1.4
0.042
0.42
3.9
1.0
1.0
0.05
7.3
53
14
14
1
18
80 - 90
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