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SWSL411

Site code

      SWSL411
Location
      Mannibadar (Lismore Pittong Road), Linton district, south-west Victoria
Landform
      Alluvial fan
Geology
      Devonian Tiac Granodiorite: intrusive biotite granodiorite, coarse grained
Element
      Lower slope

Soil Profile Morphology:
Horizon

Depth (cm)

Description

A1
0–10
Brown (10YR4/3); fine sandy loam; clear boundary to:

A2
10–50
Pale brown (10YR6/3), conspicuously bleached, very pale brown (10YR7/3 dry); fine sandy clay loam; very many fine segregations; sharp boundary to:

B21
50–65
Yellowish brown (10YR5/6) with red (2.5YR4/6) mottles; medium heavy clay; strong medium blocky structure; boundary to:

B22
65+
Yellowish brown (10YR5/6) with red (2.5YR4/6) mottles; medium heavy clay; strong medium blocky structure.

ASC: Ferric, Mottled-Subnatric, Brown SODOSOL

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

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
0–10
4.6
N/R
0.08
N/R
N/R
N/R
N/R
N/R
N/R
N/R
A2
10–50
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
B21
50–65
6.5
N/R
0.07
N/R
2.6
7.3
0.19
1.6
N/R
8.7
B22
65+
6.9
N/R
0.08
N/R
N/R
N/R
N/R
N/R
N/R
N/R

Sample
depth
FC
(-10kPa)
PWP
(-1500kPa)
KS
FS
Z
C
Org C
Bulk density
Horizon
cm
%
%
%
%
%
%
%
t m-3
A1
0–10
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
A2
10–50
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
B21
50–65
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
B22
65+
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R

Management Considerations:

Strong texture contrast between the surface soil and the subsoil is a very important soil feature and may have an impact upon the permeability. Acidic surface soils and conspicuously bleached A2 horizons are other key topsoil features. Mottled subsoils are common and are an indication of periodic waterlogging. Improved drainage and the application of gypsum to improve structure and permeability may reduce the incidence of waterlogging while increasing organic matter and maintaining vegetative cover is also important.
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