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WLRA13

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 when dry; highly calcareous; 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 when dry; moderately calcareous; 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 when slightly moist; highly calcareous; common (patchy) calcareous soft segregation's; 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 when slightly moist; highly calcareous; many calcareous soft segregation's; 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 when slightly moist; highly calcareous; many calcareous soft segregation's; 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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