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SW80

SW80 landscape
General view of landscape (East), SW80 in the distance

    Site Code
SW80
SW80 profile
Vertic, Mottled–Mesonatric, Grey SODOSOL

    Location
11 km East of Colac, close to junction of Collyers and Crabbe Roads
    Landform
Undulating rises
    Geology
Gellibrand Marl
    Element
Open depression
    Slope
0
    Aspect
0
Horizon
Depth (cm)
Description
A1
0–15 Very dark greyish brown (10YR3/2 moist), greyish brown (10YR5/2 dry); loam, fine sandy; weakly pedal structure; weak consistence (dry); gradual boundary to:

A2e
15–40 Brown (10YR5/3 moist), conspicuously bleached (10YR7/2 dry); loamy sand; sharp boundary to:

B21t
40–90 Very dark grey (10YR3/1 moist) with fine yellowish brown (10YR5/8) mottles; heavy clay; coarse (up to 400 mm) columnar structure, parting with difficulty to coarse blocky structure; slickensides across ped; gradual boundary to:

B22gss
90–140Very dark grey (10YR3/1 moist) with ~ 50% coarse olive brown (2.5Y4/4 moist) mottles; heavy clay; coarse columnar peds continuous from B21; slickensides more prominent than in B21 above; clear boundary to:

B23g
140+Conspicuously mottled, gleyed clay; massive structure.

Management considerations
Very prone to waterlogging and a hostile subsoil render this a difficult unit to manage with little opportunity for improvement.

Analytical data
Site SW80
Sample
depth
pH
EC
NaCl
Ex Ca
Ex Mg
Ex K
Ex Na
Ex Al
Ex acidity
FC
(-10kPa)
PWP
(-150kPa)
KS
FS
Z
C
Horizon
cm
H2O
CaCl2
dS/m
%
cmolc/kg
cmolc/kg
cmolc/kg
cmolc/kg
mg/kg
cmolc/kg
%
%
%
%
%
%
A1
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
A2
20-40
5.4
4.5
<0.05
N/R
1.2
0.29
0.19
0.07
17.0
5.6
N/R
N/R
3.7
62.2
23.0
8.0
Btg
50-70
7.5
6.4
0.16
N/R
4.5
10.0
0.23
2.7
N/R
N/R
N/R
N/R
2.0
35.8
14.0
46.0
Bgt
100-120
7.5
6.6
0.41
0.06
3.7
8.4
0.2
4.1
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
Bg
140+
7.5
6.6
0.46
0.09
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
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