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WLRA133

WLRA - soil pit WLRA133- landscape

    Site Code
WLRA133
WLRA - soil pit WLRA133- profile
Episodic-Epicalcareous, Massive, Grey VERTOSOL

    Location

Jeparit Road, Warracknabeal

    Landform

Undulating plain

    Geology

Quaternary Woorinen Formation:
aeolian dune sand, calcareous clay

    Element

Lower slope

    Slope

1%

    Aspect

South-east

Horizon
Depth (cm)
Description

A1

0–8

Very dark greyish brown (10YR3/2);
light clay; massive (structureless); earthy fabric; very firm consistence, dry; highly calcareous; pH 8.6; abrupt and wavy change to:

B21

8–40

Dark grey (2.5Y4/1);
medium clay; strong coarse to medium prismatic, parting to medium to fine angular blocky structure; smooth ped fabric; very strong consistence dry; a few distinct slickensides evident; highly calcareous; pH 9.2; gradational and smooth change to:

B22k

40–70

Greyish brown (2.5Y5/2);
medium clay; weak fine polyhedral structure; rough ped fabric; weak consistence moderately moist; a few extremely coarse calcareous soft segregations in patches present; very highly calcareous; pH 9.2; diffuse and smooth change to:

B3

70–140+

Greyish brown (2.5Y5/3);
medium clay; weak coarse polyhedral structure; rough ped fabric; weak consistence, moderately moist; contains very few very coarse calcareous soft segregations in patches; a few faint clay skins evident; highly calcareous; pH 9.3.

Management Considerations

  • High susceptibility to wind erosion.
  • Alkaline subsoils with calcareous soft segregations in patches.
  • Massive surface structure may make it vulnerable to wind erosion without stubble and trash retention.
  • Possible slight to moderate soil structure decline susceptibility due dispersibility in the deeper subsoil.

Horizon
Depth (cm)
pH (water)
pH (CaCl2)
EC
dS/m
Exchangeable Cations
cmol-/kg
Ca
Mg
K
Na
A1
0–8
8.6
8
0.23
27
5.6
1.9
1.5
B21
8–40
9.2
8.5
0.69
14
11
1.6
6
B22K
40–70
9.2
8.8
1.6
8.1
17
2.5
12
B3
70–140+
9.3
8.8
1.6
6.8
14
2.3
12
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