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WLRA015

WLRA - soil pit WLRA15- landscape
Long undulating cropped plains
    Site Code
WLRA15

    Location

Jeparit East Road, western Victoria

    Landform

Undulating plain

    Geology

Quaternary Woorinen Formation: aeolian dune sand, calcareous clay

    Element

Hillslope

    Slope

2%

    Aspect

South

Horizon
Depth (cm)
Description
A1
0–5

Dark brown (7.5YR4/3); fine sandy loam; strong fine polyhedral structure; rough ped fabric; weak consistence, dry; highly calcareous; field pH 9.0; clear boundary to:
A3
5–22

Dark brown (7.5YR4/3); fine sandy clay; weak to moderate medium to fine angular blocky structure; rough ped fabric; weak consistence, dry; few calcareous segregations; moderately calcareous; field pH 9.5; clear boundary to:

B1
22–40

Yellowish red (5YR5/6); light clay; moderate fine subangular blocky structure; rough ped fabric; weak consistence, slightly moist; highly calcareous; field pH 9.5; clear boundary to:

B21
40–65

Yellowish red (5YR5/6); light medium clay; moderately fine angular blocky structure; rough and smooth ped fabric; firm consistence slightly moist; contains very few fine calcareous soft segregations; a few distinct mangans evident; highly calcareous; field pH 9.5; gradual boundary to:

B22
65–103

Reddish yellow (7.5YR6/6) with many very coarse prominent (2.5YR4/6) mottles; light medium clay; moderate to strong medium angular blocky, parting to fine subangular blocky structure; rough and smooth ped fabric; firm consistence, slightly moist; contains very few calcareous soft segregations; a few faint mangans evident; highly calcareous; field pH 9.5; gradual boundary to:

B23
103–125+
Pale brown (10YR6/3) with common very coarse prominent (2.5YR4/6) mottles; medium clay; moderate to strong medium angular blocky, parting to fine subangular blocky structure; rough and smooth ped fabric; firm consistence slightly moist; contains very few calcareous soft segregations; a few faint mangans evident; highly calcareous; 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.
  • Possible slight to moderate soil structure decline susceptibility due to poorer structure and dispersibility in the subsoil.
  • Landform element, duneslope; moderate to well-drained site drainage.
CC BY 4.0 AU

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This material is presented in an archived form and is no longer maintained or updated. It is provided for general information only and should not be relied upon as current advice.

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