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WLRA66

WLRA - soil pit WLRA66- landscape
Lower alluvial terrace and river floodplain

    Site Code
WLRA66

    Location

Joel, western Victoria

    Landform

Alluvial plain

    Geology

Quaternary Coonambidgal Formation:
fluvial to lacustrine clays and sands

    Element

Terrace

    Slope

West

    Aspect
Horizon
Depth (cm)
Description

A1

0–8

Dark brown to brown (7.5YR4/3); loamy sand; weak fine subangular blocky structure; rough ped-fabric; very weak consistence when dry; pH 6.0; abrupt boundary to:

A21

8–35

Light brown (7.5YR6/4); conspicuously bleached (7.5YR7/4 dry); loamy sand; single grain , occasionally massive (structureless); earthy ped-fabric; very weak consistence when dry; pH 6.5; gradual boundary to:

A22

35–65

Very pale brown (10YR7/4); conspicuously bleached (10YR8/3 dry); loamy sand, silty; single grain, occasionally massive (structureless); earthy ped-fabric; weak consistence when dry; pH 7.2; sharp boundary to:

B21

65–110

Light yellowish brown(10YR6/4) with many coarse (7.5YR5/4) mottles; sandy loam, heavy; massive (structureless); earthy ped-fabric; very firm consistence when slightly moist; pH 8.5; gradual boundary to:

B22

110–120+

Light yellowish brown (10YR6/4) with common medium faint (10YR5/4) mottles; loam, fine sandy; massive (structureless); earthy ped-fabric; very firm consistence when slightly moist; pH 9.0
Management considerations
  • Gradational texture change with depth. Occasionally texture contrast. Light textures, well drained to subsoil.
  • Slightly acidic surface grading to neutral and alkaline with depth.
  • Surface soil has protective organic matter content, still slightly susceptible to sheet and rill erosion.
  • Subsurface horizons bleached, susceptible to sheet and rill erosion.
  • Subsoil likely to be sodic and dispersive. Imperfectly to moderately well drained.
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