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WLRA013

WLRA - soil pit WLRA13- landscape
Long undulating cultivated plains

    Site Code
WLRA13

    Location

Jeparit East Road, western Victoria

    Landform

Undulating plain

    Geology

Quaternary Woorinen Formation:
aeolian dune sand, calcareous clay

    Element

Plain

    Slope

1%

    Aspect

South south-west
Horizon
Depth (cm)
Description

A1

0–10

Dark brown (7.5YR3/4);
clay loam, fine sandy; moderate fine polyhedral structure; rough ped fabric; firm consistence, dry; highly calcareous; field pH 9.0; clear boundary to:

A2

10-30

Reddish brown (5YR4/4);
light clay; moderate to strong fine polyhedral structure; rough ped fabric; very firm consistence, dry; moderately calcareous; field pH 9.5; clear boundary to:

B21k

30–60

Yellowish red (5YR5/6);
light medium clay, fine sandy; moderate to strong fine subangular blocky structure; rough and smooth ped fabric; firm consistence, slightly moist; highly calcareous; contains common (patchy) calcareous soft segregations; field pH 9.5; clear boundary to:

B22k

60–75

Reddish yellow (7.5YR6/6);
light medium clay; fine sandy; moderate to strong medium, parting to fine subangular blocky structure; rough and smooth ped fabric; weak consistence, slightly moist; highly calcareous; contains many calcareous soft segregations; field pH 9.5; clear boundary to:

B23k

75–140+

Reddish yellow (7.5YR6/6);
medium clay, fine sandy; moderate to strong fine subangular blocky structure; rough and smooth ped fabric; weak consistence, slightly moist; highly calcareous; contains many calcareous soft segregation's; field pH 9.5.

Management Considerations

  • High susceptibility to wind erosion.
  • Alkaline subsoils with calcareous soft segregations, manganese coatings (Mangans).
  • Minor subsoil constraint >65 cm as mottling and soil colour indicates slightly imperfect drainage.
  • Lighter surface soil with strong fine structure with weak resistance to breaking down makes it vulnerable to wind erosion without stubble and trash retention.
  • Poorer structure and increased dispersibility in the subsoil.
  • Landform element, duneslope; moderate to well-drained site drainage.
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