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MM229

Site code
      MM229
Location
      Lake Colongulac (Chocolyn Maloneys Road), Camperdown district, south-west Victoria
Landform
      Lunette
Geology
Element
      Crest

Profile morphology
Horizon

Depth (cm)

Description

A1
0–50
Black (10YR2/1); clay loam; strong very fine blocky structure; firm consistence (dry); clear boundary to:

B21
50–70
Black (10YR2/1); medium clay; strong fine blocky structure; weak consistence (moderately moist); clear boundary to:

B22
70–110
Very dark greyish brown (10YR3/2); medium clay; strong fine blocky structure; weak consistence (moderately moist); gradual boundary to:

B23
110+
Light yellowish brown (2.5Y6/4); medium clay; very firm consistence (moderately moist); common calcareous soft segregations.

ASC: Haplic, Calcic, Black Chromosol

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

Site MM229
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
0–50
6.3
N/R
0.06
N/R
12.4
12.4
0.6
0.5
N/R
16
B21
50–70
6.8
N/R
0.07
N/R
12.6
12.6
1.2
1.1
N/R
11.8
B22
70–110
7.7
N/R
0.07
N/R
N/R
N/R
N/R
N/R
N/R
7.8
B23
110+
8.7
N/R
0.2
0.02
12.2
12.2
1.6
1.6
N/R
N/R

Site MM229
Sample
depth
FC
(-10kPa)
PWP
(-1500kPa)
KS
FS
Z
C
Org C
Bulk density
Horizon
cm
%
%
%
%
%
%
%
t m-3
A1
0–50
34.1
26.6
0
46
11
35
5.2
1.01
B21
50–70
46.9
36.1
0
29
7
61
N/R
1.09
B22
70–110
52.6
38.7
0
27
4
67
N/R
N/R
B23
110+
N/R
N/R
0
22
4
49
N/R
N/R

Management considerations
Strong texture contrast between the surface soil and the subsoil is a very important soil feature and can have a major effect on the soil profile permeability. Significant organic matter and fine cracking soils in the topsoil lead to friable surface soils (and subsoils). Alkaline subsoils are associated with a high nutrient capacity but may result in an imbalance in nutrient availability. Calcium carbonate nodules (segregations, soft and hard) are associated with alkaline soils.
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