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SW58

SW58 landscape
    Site Code
SW58

SW58 upper profile
Upper profile (A1 and B21 horizons)


SW58 deep profile
Deeper profile (B22g and B23g horizons)
Humose, Kurosolic, Redoxic HYDROSOL
    Location
Cooriemungle road / Gallum road, tributary of Ross Creek, Heytesbury district
    Landform
Valley floor
    Geology
Neogene Hanson Plain Sand and Gellibrand Marl: Alluvium
    Element
Plain on valley floor
    Slope
0%
    Aspect
NE
Horizon
Depth (cm)
Description
A1
0-30 Very dark brown (10YR2/2 moist and 10YR5/2 dry); clay loam; weakly pedal; medium (10-20 mm) polyhedral structure; weak consistence; pH 5.9; clear and smooth change to:

B21
30-45 Black (10YR2/1 moist and 10YR4/1 dry); with reddish yellow (5YR6/8 moist) mottles common (mainly in root channels); medium clay; coarse polyhedral (tending to prismatic), parting to medium blocky structure; weak consistence; pH 5.3; abrupt and smooth change to:

B22g
45-75 Dark grey (10YR4/1 moist) with brownish yellow (10YR6/8 moist) mottles common; medium clay; medium (20-50 mm) prismatic, parting to medium (10-20 mm) blocky structure; firm consistence; pH 5.5; clear and smooth change to:

B23g
75 +Grey (10YR5/1 moist) with many reddish yellow (7.5YR6/8 moist) mottles; sandy clay; very coarse (100-300 mm) prismatic structure, (larger at depth), parting to very coarse (50-100 mm) and coarse (20-50 mm) blocky structure; very firm consistence; pH 5.8; strong sulphidic smell (i.e. anaerobic).

Management considerations
This and similar soils in the district respond well to close spaced drains to alleviate waterlogging and form reasonably stable mole channels. See also profile SW57 for variation in the soil profile at this site.

Analytical data
Site SW58
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
0-30
5.9
5.4
0.22
N/R
12.0
2.8
0.40
0.46
<10
13.0
35.8
15.4
4.5
45.5
21.0
19.0
B21
30-45
5.3
4.5
0.16
N/R
8.2
5.2
0.38
0.80
140
18.0
39.4
22.2
5.4
19.9
21.0
46.0
B22
45-75
5.5
4.6
0.11
N/R
5.1
5.2
0.34
0.71
110
12.0
35.5
23.5
9.1
27.6
20.0
39.5
B23
75-130
5.8
4.8
0.10
N/R
3.4
3.8
0.23
0.54
22
5.4
25.1
13.4
13.3
39.0
23.0
25.5
B23g
130-150
5.8
5.0
0.15
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
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