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WLRA63

WLRA - soil pit WLRA63- landscape
Lower alluvial terrace and river floodplain

    Site Code
WLRA63

    Location

Salt Creek, western Victoria

    Landform

Alluvial Plain

    Geology

Quaternary Shepparton Formation:
fluvial silt, sand and minor gravel

    Element

Plain

    Slope

0–1%

    Aspect

-
Horizon
Depth (cm)
Description

A1

0–8

Dark brown to brown (7.5YR4/3); loamy sand, heavy; weak fine subangular blocky structure; rough ped-fabric; weak consistence (dry); pH 7.0; abrupt boundary to:

A21

8–25

Brown (10YR4/4); light brown (10YR6/4 dry); fine sandy loam; massive (structureless); earthy ped-fabric; weak consistence when dry; many fine subangular quartz gravels; pH 7.0; gradual boundary to:

A22

25–35

Yellowish brown (10YR5/4); conspicuously bleached very pale brown (10YR7/3 dry); coarse sandy loamy; massive (structureless); earthy ped-fabric; weak consistence when dry; many fine and medium subangular quartz gravels; pH 7.0; sharp boundary to:

B21

35–60

Yellowish red (5YR4/6) with few fine faint yellow mottles; light clay, silty; strong medium prismatic, parting to fine angular blocky structure; smooth ped-fabric; strong consistence when dry; pH 4.7; gradual boundary to:

B22

60–80

Yellow brown(10YR5/4) with common distinct medium (2.5YR3/6) and fine (10YR6/8) mottles; light clay; silty; moderate medium polyhedral, parting to fine subangular blocky structure; smooth ped-fabric; firm consistence (slightly moist); pH 5.5; clear boundary to:

B23

80–105

Brown (7.5YR4/3) with few fine faint red and grey mottles; light clay, silty; strong medium prismatic, parting to medium and fine angular blocky structure; smooth ped-fabric; very firm consistence when slightly moist; pH 6.5; gradual boundary to:

      B24

      105–130+

Light yellowish brown (10YR6/4), with common distinct medium (7.5YR6/6) mottles; light clay; weak coarse polyhedral parting to moderate fine subangular blocky structure; rough ped-fabric; weak consistence (slightly moist); pH 7.0.
Management considerations
  • Texture contrast soil. Occasionally Gradational texture change with depth. Light textures, well drained to subsoil.
  • Neutral surface (A1-A22); highly acidic upper subsoil (B21) grading towards neutral 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 at depth. Imperfectly too poorly drained.
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