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IS28

Location: Haven

Australian Soil Classification: Grey SODOSOL


Northcote Factual Key: Dy5.43
Great Soil Group: solodic soil
Soil Type: Quantong Sand (deep surface)


General Landscape Description: Dune within a Dunefield
Geology: Quaternary Lowan Formation: aeolian fine to medium grained dune sand


Soil Profile Morphology:

Surface Soil

O120-0 cmLight brownish grey (10YR6/2); sand; single grain structure; loose surface condition; pH 5.3; sharp boundary to:


A10-10 cmBrown (10YR5/3); sand; loose surface condition; single grain (structureless); pH 6.1; sharp boundary to:


A21e10-40 cmPale brown (10YR6/3) conspicuously bleached (10YR7/4d); sand; single grain (structureless); loose consistence; pH 6.2; gradual boundary to:


A22e40-200 cmLight yellowish brown(10YR6/4) conspicuously bleached (10YR7/4d); sand; single grain (structureless); loose consistence; pH 6.7; sharp and wavy boundary to:

Subsoil


B21200-225 cmPale brown (10YR6/3) with light grey (10YR7/2) mottles; sandy clay; weak very coarse lenticular structure (slickensides); pH 7.9.

Chemical and Physical Analysis:


Horizon
Sample Depth cm
pH
H2O
EC
dS/m
Sodium
Chloride
%
Exchangeable Calcium
cmol-/kg
Exchangeable
Magnesium
cmol-/kg
Exchangeable Potassium
cmol-/kg
Exchangeable Sodium
cmol-/kg
Total Nitrogen
%
Exchangeable Acidity
cmol-/kg
Organic Carbon
%
Permanent
Wilting
Point
-1500okPa
Coarse
Sand
%
Fine
Sand
%
Silt
%
Clay
%
O1
20–0
5.3
0.02
0.7
0.2
0.1
0.1
0.02
0.4
0.53
0.1
46
51
0
3
A1
0–10
6.1
0.01
0.4
0.1
0
0
0.01
0.4
0.25
0.1
62
35
0
2
A21e
10–40
6.2
0.01
0.3
0.1
0
0
0.11
0
54
44
0
2
A22e
40–200
6.7
0.01
0.4
0.1
0.1
0
0.13
0
63
34
0
2
B21
200–225
7.9
0.18
0.03
0.02
0.15
16.3
36
26
2
33


Management Considerations:
  • Texture contrast soil or deep sand over clay.
  • Deep sandy material is alkaline at the surface becoming neutral to slightly acidic with depth.
  • Deep loose sand, bleached, little nutrient holding capacity or available.
  • Sandy material susceptible to wind and sheet erosion.
  • Upper subsoil is acidic tending to neutral with depth.
  • Subsoil is sodic with pale colour and mottling, restricted drainage.
  • Landform element, dune; well drained site drainage.

Profile Described By: John Martin, Nabil Badawy, Ron Cawood, Geoff Pope, John Galea, John Turner (1970).
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