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Profile Number 31

Laboratory number: 0978 A study of the land in the Catchment of Gippsland Lakes - Vol 2 - Soil profile 31Profile Description
Site number:449A10 - 10 cmDark reddish brown (5YR 3/4) sandy clay loam; strong fine (1 mm) crumb structure; rough-ped fabric; soft when dry; many fine roots; pH 6.5; abrupt boundary
Classification:Northcote (1979) - Gn3.11 Stace et al. (1972) – KrasnozemA310 - 30 cmDark reddish brown (5YR 3/4) clay loam; moderate fine (3 mm) subangular blocky structure; rough-ped fabric; hard when dry; many fine roots; pH 6.0; clear boundary
Location:Warragul 8021, grid ref. 057705 5 km S of WarragulB21 30 - 60 cmDark red (2.5YR 3/6) clay loam; strong fine (3 mm) angular blocky structure; rough-ped fabric; hard when dry; many fine roots; pH 5.5; gradual boundary
Land system, component: Neerim, 1B22 60 - 150 cmDark red (2.5YR 3/8) clay loam; strong fine (5 mm) angular blocky structure; smooth-ped fabric; extremely hard when dry; pH 5.5; gradual boundary
Topography:Upper hillslope, 11% gradientC150 - 180 cmRed (2.5YR 4/6) sandy clay loam; abundant (5 - 15 mm) distinct yellowish red mottles; weak fine (5 mm) angular blocky structure; extremely hard when dry; pH 5.0; weathered basalt below this horizon
Elevation:160 m
Drainage:Good
Parent material:Strongly weathered Tertiary basalt, often kaolinitic at Depth
Vegetation:Cleared; mostly introduced grasses with scattered Eucalyptus obliqua and Acacia verticillata
LABORATORY ANALYSES 978
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
25°C
uS/cm
Cl-

%
Depth

cm
Composition

%
Al
0 - 10
SiL
7
10
27
37
21
64
35
5.5
140
0.015
120 - 150
kaolinite 80;
A3
10 - 20
7
2
14
19
62
70
32
29
16
41
0.006
chlorite 20
B21
30 - 60
C
7
4
14
17
64
79
55
38
21
5.4
36
0.004
B22
120 - 150
C
7
24
19
5.7
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
Al
0 - 10
5.4
0.42
17
6.0
10
300
0.07
0.08
2.1
1.3
0.8
0.4
41.2
5
3
2
2
88
A3
10 - 20
B21
30 - 60
6.4
0.025
0.05
0.7
0.5
0.06
0.2
28.7
2
2
<1
1
95
B22
120 - 150
6.7
0.022
0.06
0.1
0.9
0.03
0.4
21.3
1
4
<1
2
93
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