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WLRA124

WLRA - soil pit WLRA124- landscape
Cropped undulating plains
    Site Code
WLRA124
WLRA - soil pit WLRA124- profile
Hypercalcic, Mesonatric, Red SODOSOL

    Location

Borung Highway, Areegra, western Victoria

    Landform

Crest of an undulating plain

    Geology

Quaternary Woorinen Formation: aeolian dune sand, calcareous clay

    Element

Rise crest

    Slope

2–3%

    Aspect

South-west

Horizon
Depth (cm)
Description

A1

0–10

Dark brown (7.5YR3/3); light sandy clay loam; weakly pedal to single grain (structureless); weak consistence when dry; pH 7.5; smooth and sharp boundary to:

B21

10–25

Dusky red (2.5YR3/4); medium clay; medium to coarse strong angular blocky, parting to fine to very fine subangular blocky structure; smooth ped fabric; very firm consistence when dry; very few manganiferous flecks (<2 mm) and root linings (2-6 mm), slightly calcareous, pH 8.5; clear and irregular boundary to:

B22k

25–55

Yellowish red (5YR5/6); medium clay; medium strong prismatic, parting to fine subangular blocky structure; rough ped fabric; very firm consistence when dry; very highly calcareous with many coarse to very coarse soft calcareous segregation's; many fine pores and roots; pH 9.0; clear and irregular boundary to:

B23

55–85

Yellowish red (5YR5/6); light medium clay; strong fine prismatic, parting to strong very fine subangular blocky structure; rough ped fabric; very firm consistence when dry; many fine pores and roots; pH 9.0; smooth and gradual boundary to:

B3

85–125+

Yellowish red (5YR5/5); light medium clay; weak fine prismatic, parting to very fine subangular blocky structure; rough ped fabric; firm consistence when moderately moist; many fine pores; pH 9.0.

Management Considerations

  • Effective rooting depth to 85 cm.
  • Moderate susceptibility to wind erosion if fallow.
  • Well structured subsoil.
  • Calcareous at depth, many soft segregations.
  • Alkaline throughout subsoil.
  • Moderate susceptibility to soil structure decline due to slaking and some dispersion.

Horizon
Depth (cm)
pH (water)
pH (CaCl2)
EC
dS/m
Exchangeable Cations
cmol-/kg
Coarse Sand
%
Fine Sand
%
Silt
%
Clay
%
Ca
Mg
K
Na
A1
0–10
7.6
7.1
0.14
2.7
1.6
0.24
2.7
50
21.6
5
19.5
B21
10–25
8.4
8
0.24
10
1.2
1.6
10
24.4
14.2
4
53.5
B22k
25–55
9.3
8.6
0.33
12
1.4
5
12
18.1
15.5
6
51.5
B23
55–85
9.6
9
0.61
13
2
10
13
16.3
16.6
3.5
56
B3
85–125+
9.7
9
0.78
12
2.3
12
12
14.8
14
4
59.5
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