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ORZC3

Location: Birchip.Australian Soil Classification: Vertic (& Epihypersodic), Pedal, Calcic, CALCAROSOL (clayey).
Geology: Woorinen Formation.
General Landscape Description: Located on a westerly facing gentle slope gilgai hummock, within a gently undulating landscape. This site represents the mound component of the gilgai microrelief.
Site Description: Pasture containing barrel medic.

Photo: Site ORZC3 Landscape
Site ORZC3 Landscape


Soil Profile Morphology:

Surface Soil

A10-5 cmDark yellowish brown (10YR4/4); light clay; weak consistence dry; pH 9.3:

Photo: Site ORZC3 Soil Profile
Site ORZC3 Profile
Subsoil

B215-20 cm Yellowish red (5YR5/6); medium clay; strong coarse prismatic, parting to coarse blocky structure; firm consistence dry; contains a common (20%) amount of fine earth carbonates; some surface horizon material along ped faces; pH 9.5:

B2220-50 cmLight yellowish grey (7.5YR7/4) with yellowish red (5YR5/6) mottles; medium clay; strong coarse prismatic, parting to coarse blocky structure; firm consistence dry; pH 9.8:

B2350-90 cm Light yellowish grey (7.5YR7/4) with yellowish red (5YR5/8) and light grey (10YR7/2) mottles; medium clay; lenticular structure; very weak consistence moist; contains pockets of sandstone; pH 10.2:

B2490+ cmPale yellow (2.5Y7/4) with yellowish red (5YR5/8) mottles; medium heavy clay; strong lenticular structure with large slickensides; weak consistence moist; pH 9.8.

Key Profile Features:
Soil Profile Characteristics:


pH
Salinity Rating
Surface
(A1 horizon)
Strongly Alkaline
Low
Non-Sodic
None
Subsoil
(B21 horizon)
Very Strongly Alkaline
Low-Medium
Strongly Sodic
Strong
Deeper subsoil
(at 1 m)
Extremely Alkaline
Very High
Strongly Sodic
None1
1 Complete dispersion after remoulding.
Photo: Site ORZC3 Soil Graphs

Horizon
Horizon Depth
(cm)
pH
(water)
pH (CaCl2)
EC
1:5
NaCI %
Exchangeable Cations
Boron
mg/kg
Field Capacity
pF 2.5
Wilting Point
pF 4.2
Coarse Sand (0.2 - 2 mm)
Fine Sand
(0.02 -0.2 mm)
Silt
(0.002 -0.02 mm)
Clay
(<0.002 mm)
Ca
Mg
K
Na
meq/100g
A1
0-5
8.6
8.1
0.23
0.04
29
7.7
2.0
1.0
2.9
42
17
16
24
16
33
B21
5-20
9.5
8.6
0.54
0.04
8.0
10
1.3
6.5
13
41
20
14
19
10
36
B22
20-40
9.8
9.1
0.91
0.10
3.4
12
1.5
11
25
42
22
16
21
14
37
B23
50-70
10.2
10.1
0.55
0.18
2.0
12
1.6
15
36
44
25
17
21
9
49
B24
90-110
9.8
9.5
0.57
0.30
2.2
12
1.6
17
25
47
31
14
21
8
54

Profile Described By: Mark Imhof, Paul Rampant and Steve Ryan (11/10/2000).
CC BY 4.0 AU

This page contains material sourced from the Victorian Resources Online (VRO) website, originally published by the State Government of Victoria.

The content is provided under the Creative Commons Attribution 4.0 Australia licence (CC BY 4.0 AU).

This material is presented in an archived form and is no longer maintained or updated. It is provided for general information only and should not be relied upon as current advice.

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