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LS25

WLRA - soil pit LS25- landscape
Lower slope of dune on gently undulating plain

    Site Code
LS25
WLRA - soil pit LS25- profile
Hypercalcic, Subnatric, Red SODOSOL(sandy)

    Location

Propodollah, western Victoria

    Landform

Dune within sand plain

    Geology

Pliocene Parilla Sand:
marine sand and silt

    Element

Duneslope

Horizon
Depth (cm)
Description

A1

0–20

Dark brown (7.5YR3/4);
loamy sand; massive (structureless); weak consistence (dry); pH 6.6.

A2

20–30

Yellowish red (5YR4/6);
sand; massive (structureless); firm consistence (dry); pH 6.5.

B21

30–70

Yellowish red (5YR5/8);
heavy clay; strong coarse columnar (with bleached cemented capping), parting to strong coarse blocky
structure; very strong consistence dry; pH 8.6.

B22k

35–65

Brown yellow (10YR6/8) with (2.5YR4/8) mottles;
light medium clay; weak columnar structure; strong consistence (dry); common soft calcareous segregations; pH 9.3.

Management Considerations

  • Distinctive texture contrast between sandy surface (A) horizons and clay (B) subsoil.
  • Light surface texture is highly susceptible to wind erosion.
  • Strong coarse columnar structure with bleached capping at top of subsoil, restricting water and gas movement.
  • Neutral surface soil over alkaline subsoil which may well decrease as it grades into weathered sandstone material.
  • Duneslope element, moderate site drainage (receiving and distributing drainage).
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