LSWW04b

WLRA - soil pit WW4b- landscape
Red and grey clay plains and rises

Endocalcareous, Epipedal, Brown VERTOSOL

Location

Lillimur, western Victoria

Landform

Rise

Geology

Quaternary Woorinen Formation: aeolian dune sand, calcareous clay

Element

Hillslope

Horizon

Depth (cm)

Description

0–10

Very dark greyish brown (10YR3/2); light clay; moderate coarse blocky, parting to fine polyhedral structure:

B21

10–50

Dark brown (10YR3/3); light clay; moderate coarse blocky, parting to fine polyhedral structure; pH 8.7:

B22k

50–140

Reddish yellow (7.5YR7/6); light clay; strong coarse and medium, parting to medium subangular blocky structure; many soft calcareous segregations; pH 9.1:

B23k

140–170

Reddish yellow (7.5YR6/6); medium clay; moderate coarse prismatic, parting to strong coarse subangular blocky and moderate medium blocky structure; smooth ped-fabric; many soft calcareous segregations.

Management Considerations

Clayey profile, possibly a calcarosol (calcareous throughout).
Clay content highest in upper subsoil.
Subsoil dispersive when worked when wet.
Strongly alkaline subsoil, but not sodic at least to 140 cm dominated by calcium.
Gilgai micro-relief, caused by the soil cracking when dry, has lead to grey soil occurring in the depressions.
Gentle Hillslope, imperfect site drainage.

Horizon

Depth (cm)

pH (water)

pH (CaCl₂)

EC
dS/m

Exchangeable Cations
cmol-/kg

Wilting Point
(pF4.2)

Coarse Sand
%

Fine Sand
%

Silt
%

Clay
%

0–10

B21

10–50

8.7

0.12

1.2

0.5

19.0

12.7

5.5

B22k

50–140

9.1

8.1

0.14

6.3

0.8

0.7

17.7

5.6

13.4

3.5

29.5

B23k

140–170

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Red and grey clay plains and rises				Endocalcareous, Epipedal, Brown VERTOSOL
		Location	Lillimur, western Victoria
		Landform	Rise
		Geology	Quaternary Woorinen Formation: aeolian dune sand, calcareous clay
		Element	Hillslope




Horizon	Depth (cm)	Description
A1	0–10	Very dark greyish brown (10YR3/2); light clay; moderate coarse blocky, parting to fine polyhedral structure:
B21	10–50	Dark brown (10YR3/3); light clay; moderate coarse blocky, parting to fine polyhedral structure; pH 8.7:
B22k	50–140	Reddish yellow (7.5YR7/6); light clay; strong coarse and medium, parting to medium subangular blocky structure; many soft calcareous segregations; pH 9.1:
B23k	140–170	Reddish yellow (7.5YR6/6); medium clay; moderate coarse prismatic, parting to strong coarse subangular blocky and moderate medium blocky structure; smooth ped-fabric; many soft calcareous segregations.
Management Considerations
Clayey profile, possibly a calcarosol (calcareous throughout). Clay content highest in upper subsoil. Subsoil dispersive when worked when wet. Strongly alkaline subsoil, but not sodic at least to 140 cm dominated by calcium. Gilgai micro-relief, caused by the soil cracking when dry, has lead to grey soil occurring in the depressions. Gentle Hillslope, imperfect site drainage.