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LS19

WLRA - soil pit LS19- landscape
Midslope with westerly aspect of a low rise
    Site Code
LS19
WLRA - soil pit LS19- profile
Vertic (and Calcic), Mottled-Mesonatric, Red Sodosol

    Location

Woorak, western Victoria

    Landform

Gently undulating rise

    Geology

Quaternary Woorinen Formation: aeolian dune sand, calcareous clay

    Element

Hillslope (Middle)

    Slope

1–3%

    Aspect

West
Horizon
Depth (cm)
Description

A1

0–15

Dark brown (7.5YR4/2); heavy sandy clay loam; weakly structured; platy fragments occur at the base of this horizon; pH 7.0.

B21

15–50

Reddish brown (5YR5/4) with (2.5YR5/8) mottles; heavy clay; strong medium prismatic parting to strong coarse blocky structure; very strong consistence (dry); pH 8.5.

B22k

50–80

Yellowish red (5YR5/6); medium heavy clay; moderate medium prismatic parting to blocky structure; contains few (5-10%) soft calcareous segregations; pH 9.2.

B23

80–170

Very pale brown (10YR7/4) with (5YR6/8) striations along prism faces; medium heavy clay; strong medium prismatic, parting to moderate medium blocky structure; firm consistence (moist); pH 9.2.

B24

170+

Pale yellow (2.5YR7/4); heavy clay; strong coarse lenticular structure; very firm consistence (moist); pH 9.0.
Management considerations
  • Texture contrast between surface and subsoil horizons
  • Hardsetting surface soil. Moderate susceptibility to sheet erosion
  • Vertic properties (ie. presence of lenticular structure) in deeper subsoil.
  • Midslope, moderate to well drained site drainage
  • Neutral surface soil and alkaline subsoil, strongly sodic below upper subsoil
  • Strong structure of subsoil, aiding drainage, particularly the upper subsoil
Site
LS19
Sample depth cm
pH
EC
dS/m
NaCl
%
Ex Ca
cmol-/kg
Ex Mg
cmol-/kg
Ex K
cmol-/kg
Ex Na
cmol-/kg
Ex Al
mg/kg
Ex acidity
cmol-/kg
FC
-30okPa
PWP
-1500okPa
KS
%
FS
%
Z
%
C
%
Horizon
H2O
CaCl2
A1
0–15
7
6.6
0.2
NA
6.5
1.3
0.8
0.3
NA
NA
16.9
9.1
NA
NA
NA
NA
B21
15–50
8.5
7.5
0.33
NA
12.9
10.6
1.3
4.6
NA
NA
42.8
29
NA
NA
NA
NA
B22
50–80
9.2
8.5
1.15
0.12
8.7
12.1
1.4
11.8
NA
NA
NA
NA
NA
NA
NA
NA
B23
80–170
9.2
8.6
1.32
0.18
7.9
11.1
1.3
11.5
NA
NA
NA
NA
NA
NA
NA
NA
B24
170+
9
8.5
1.58
0.27
9.3
12.8
1.4
13.9
NA
NA
NA
NA
NA
NA
NA
NA
Note: NA=not assessed
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