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MM5015

Site code

      MM5015
Location
      Sutherland Creek (Andersons Road), Bannockburn district, south-west Victoria
Landform
      Plain
Geology
      Quaternary Newer Volcanics: extrusive tholeiitic to alkaline basalts, minor scoria and ash
Element
      Flat

Profile morphology
Horizon

Depth (cm)

Description

A1
0–20
Dark brown (7.5YR3/2); fine sandy loam; very weak consistence (dry); clear boundary to:

A2
20–30
Brown (7.5YR4/2), conspicuously bleached, pinkish grey (75YR7/2 dry); loamy sand; sharp boundary to:

B21
30–70
Yellowish brown (10YR5/6) with red (2.5YR4/6) mottles; heavy clay; strong coarse blocky structure; very firm consistence (moderately moist); gradual boundary to:

B22
70+
Light yellowish brown (2.5Y6/4) with brown (5YR5/6) mottles; medium clay; moderate fine blocky structure; firm consistence (moderately moist).

ASC: Eutrophic, Mottled-Hypernatric, Brown Sodosol

Analytical data Source: Government of Victoria, State Chemistry Laboratory.

Site MM5015
Sample
depth
pH
EC
NaCl
Ex Ca
Ex Mg
Ex K
Ex Na
Ex Al
Ex acidity
Horizon
cm
H2O
CaCl2
dS/m
%
cmolc/kg
cmolc/kg
cmolc/kg
cmolc/kg
mg/kg
cmolc/kg
A1
0–20
5.5
N/R
0.11
N/R
1.5
1.5
0.2
0.3
9
5.5
A2
20–30
6
N/R
0.04
N/R
1
1
0
0.1
0
2.3
B21
30–70
8.2
N/R
0.24
0.04
3
3
0.5
4.7
N/R
0
B22
70+
9.6
N/R
0.55
0.08
2.6
2.6
0.6
7.3
N/R
0

Site MM5015
Sample
depth
FC
(-10kPa)
PWP
(-1500kPa)
KS
FS
Z
C
Org C
Bulk density
Horizon
cm
%
%
%
%
%
%
%
t m-3
A1
0–20
9.9
4.2
21
65
6
4
1.9
1.26
A2
20–30
N/R
N/R
26
63
6
4
0.2
N/R
B21
30–70
48.2
28.3
22
38
7
32
N/R
1.31
B22
70+
N/R
N/R
13
44
10
33
N/R
N/R

Management considerations
Strong texture contrast between the surface soil and the subsoil is a very important soil feature and can impact upon the permeability aspects of the profile. A conspicuously bleached A2 indicates restricted drainage, poor soil structure (often massive), low organic matter and low nutrient status. The surface soil is sandy and hardsetting, while the subsoil is an alkaline, sodic medium clay with mottles. Increasing the organic matter of the soil will help to reduce the hardsetting nature, while the application of gypsum will improve soil structure and drainage.
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