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Site IS28

Location: Haven

Australian Soil Classification: ?,?,Grey Sodosol

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:
A10-25 cm
Brown (10YR5/3); sand; loose surface condition; single grain (structureless); pH 6.1; sharp boundary to:


A21e25-45 cmPale brown(10YR6/3) conspicuously bleached very pale brown (10YR7/4d); sand; single grain (structureless); loose consistence; pH 6.2; gradual boundary to:


A22e45-110 cmLight yellowish brown(10YR6/4) conspicuously bleached (10YR7/4d); sand; single grain (structureless); loose consistence; pH 7.2; sharp and wavy boundary to:

Subsoil

B1110-160 cm ????

B21160-190 cmPale brown (10YR6/2) with (10YR7/2) mottles; sandy clay; weak very coarse lenticular structure (slickensides); pH 7.9.

Soil Profile Characteristics:


Horizon
Sample Depth cm
pH
EC
dS/m
Sodium Chloride
%
Exchangeable Calcium
cmol-/kg
Exchangeable
Magnesium
cmol-/kg
Exchangeable Potassium
cmol-/kg
Exchangeable Sodium
cmol-/kg
Exchangeable Aluminium
mg/kg
Exchangeable Acidity
cmol-/kg
Field
Capacity
-30okPa
Permanent
Wilting
Point
-1500okPa
Coarse
Sand
%
Fine
Sand
%
Silt
%
Clay
%
H2O
CaCl2
O1
20–0
5.3
NA
0.02
0
0.7
0.2
0.1
0.1
NA
0.4
NA
0.1
46
51
0
3
A1
0–25
6.1
NA
0.01
0
0.4
0.1
0
0
NA
0.4
NA
0.1
62
35
0
2
A21e
25–45
6.2
NA
0.01
0
0.3
0.1
0
0
NA
0
NA
0
54
44
0
2
A22e
45–110
6.7
NA
0.01
0
0.4
0.1
0.1
0
NA
0
NA
0
63
34
0
2
B21
160–190
7.9
NA
0.18
0.03
NA
NA
NA
NA
NA
NA
NA
16.3
36
26
2
33
Note: NA=not assessed.

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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