Your gateway to a wide range of natural resources information and associated maps

Victorian Resources Online

  1. Victorian Resources Online
    1. Catchment Management Regions
      1. Mallee Region
        1. Landform
        2. Land Use
        3. Soil
          1. Soils of the Mallee
          2. Soils of the Birchip Region
          3. Soils of the Mallee Research Station
          4. Soils of the Nangiloc-Colignan Area
          5. Mallee Soil Pits
        4. Land and Water Management
  2. Soil and Land Survey Directory
  3. VRO Sitemap
  4. VRO Feedback

ORZC4

Location: Birchip.Australian Soil Classification: Epicalcareous-Endohypersodic, Pedal, Calcic, CALCAROSOL.
Geology: Woorinen Formation.
General Landscape Description: Location on westerly facing gentle slope within a gently undulating plain. This site represents the depression component of the gilgai microrelief (opposite site ORZC 3).
Site Description: Pasture (medic).

Photo: Site ORZC4 Landscape
Site ORZC4 Landscape

Soil Profile Morphology:

Surface Soil

A1 0-15 cmBrown (7.5YR4/4); light medium clay; very weak consistence (dry); contains iron sandstone floaters at surface; pH 8.5; abrupt change to:

Photo: Site ORZC4 Soil Profile
Site ORZC4 Soil Profile
Subsoil

B2115-40 cmDark greyish brown (10YR4/2); medium clay; weak consistence (dry); pH 8.9; clear and wavy change to:

B22 40-100 cmPale brown (10YR6/3) with grey (10YR6/1) mottles; medium heavy clay; moderate coarse prismatic, parting to coarse blocky structure; strong consistence (dry); contains fine earth carbonates; sandy patches present; pH 9.3; gradual change to:

B23 100+ cmLight yellowish brown (10YR6/4) with light brownish grey (10YR6/2) and yellowish red (5YR5/6) mottles; medium heavy clay; sand on ped faces; pH 9.5.

Key Profile Features:
  • Gradual increase in clay content with depth.
  • Vertic properties (i.e. slickensides and lenticular peds) in deeper subsoil.
  • Soil profile calcareous throughout.
Soil Profile Characteristics:

pH
Salinity Rating
Surface
(A1 horizon)
Moderately Alkaline
Low
Non-Sodic
None
Subsoil
(B21 horizon)
Strongly Alkaline
Low
Strongly Sodic
None1
Deeper subsoil
(at 1 m)
Very Strongly Alkaline
Very High
Strongly Sodic
Moderate
1 Strong dispersion after remoulding.


    Photo: Site ORZC4 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
0-15
8.5
8.0
0.21

31
7.3
2.1
0.65
2.0
38
18
15
23
16
38
B21
15-35
8.9
8.2
0.30
0.02
17
8.3
1.2
3.0
2.0
38
18
17
24
10
44
B22
40-60
9.3
8.5
0.65
0.08
8.7
12
1.0
7.4
8.2
45
22
17
22
11
45
B23
80-100
9.5
8.7
0.61
0.26
6.3
10
1.2
14
16
43
25
12
18
15
52
B24
100+
8.7
8.1
1.9
0.31
6.1
8.8
1.0
12
13







Profile Described By: Mark Imhof, Paul Rampant and Steve Ryan (11/10/2000).
Page top

For information about DJPR please contact:

Phone: 136 186

National Relay Service: 133 677 or relayservice.gov.au

Email: customer.service@ecodev.vic.gov.au

Online: Contact us

Copyright

Privacy

Disclaimer

Accessibility
Department of Jobs, Precincts and Regions - State Government of Victoria

© State of Victoria (Agriculture Victoria) 1996 - .

Creative Commons License

This work, Victorian Resources Online, is licensed under a Creative Commons Attribution 4.0 licence. You are free to re-use the work under that licence, on the condition that you credit the State of Victoria (Agriculture Victoria) as author, indicate if changes were made and comply with the other licence terms.


The licence does not apply to ‘branding’ or some ‘images or photographs’ that may be owned by third parties. We ask you to seek prior approval to use images using the VRO feedback form. Access to higher quality images can also be provided on request.


This page was last updated on .