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CFTT04

Location: Painted LineSite: Waygara
Australian Soil Classification: Brown DERMOSOLGreat Soil Group: yellow podsolic
Tech. Class: 052-5-50/4-1-3-32General Landscape Description: Level Plain.
Geology: Mid-Tertiary sediments regarded as colluvium from basalts and earlier sediments
AAP Mapping Unit: Silver Creek


Soil Profile Morphology:

Surface Soil

A10-15 cmDark grey (10YR4/1) sandy clay loam; weak granular structure (less than 20 mm); weak consistence moist; clear smooth transition to:

A215-52 cmery pale brown (10YR7/4) sandy clay loam; massive; very weak consistence moist; clear smooth transition to:

Subsoil
B152-60 cmBrownish yellow (10YR6/6), common, medium, faint yellowish brown (10YR5/4) mottles, sandy clay; massive; weak consistence moist; clear wavy transition to:

B2160-90 cmLight yellowish brown (2.5Y6/4), many, coarse, distinct red (2.5YR4/6) mottles; light medium clay; moderate polyhedral structure (less than 50 mm) parting to moderate polyhedral structure (less than 20 mm); very firm moist; diffuse smooth transition to:

B2290-140 cmGrey (10YR6/1), many, very coarse, prominent red (10YR4/6) mottles, light medium clay; moderate prismatic structure (less than 50 mm) parting to strong polyhedral structure (less than 10 mm); very firm moist.


Key Profile Features:

  • Lack of strong texture contrast between surface (A) horizons and subsoil (B21) horizon.

Soil Profile Characteristics:

Horizon
Horizon Depth
(cm)
pH
(water)
pH
(CaCl2)
EC 1:5
Exchangeable Cations
Ca
Mg
K
Na
meq/100g
A22
60-80
5.9
5.1
0.05
<0.05
7.9
0.07
0.65
B21
90-140
5.7
4.8
0.07
<0.05
8.6
0.08
0.91

Horizon
Horizon Depth
(cm)
Exchangeable Aluminium
mg/kg

Exchangeable Acidity

meq/100g
Field Capacity
pF 2.5
Wilting Point
pF 4.2
Coarse Sand
(0.2-2.0 mm)
Fine Sand
(0.02-0.2 mm)
Silt
(0.002-0.02 mm)
Clay
(<0.002 mm)
A22
60-80
<10
8.6
32.4
19.1
20.7
16.3
11.5
50
B21
90-140
32
9.9
30.6
22.3
15.2
14.4
11
57

Notes:
  • Pit excavated to 2 metres depth - no impeding layers evident. This profile is paler than is typical for Silver Creek loam. It better fits into Boolarra loam in terms of colour but Silver Creek as far as texture is concerned.
Sampled by: Ian Sargeant and Justin Wong (17/6/99)


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