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WLRA131

WLRA - soil pit WLRA131- landscape

    Site Code
WLRA131
WLRA - soil pit WLRA131- profile
Sodic, Hypercalcic, Red Chromosol

    Location

Jeparit Road Peppers Plains, Warracknabeal, , western Victoria

    Landform

Undulating plain

    Geology

Quaternary Woorinen Formation:
aeolian dune sand, calcareous clay

    Element

Mid slope

    Slope

1%

    Aspect

South-west
Horizon
Depth (cm)
Description

A11

0–5

Dark brown (10YR3/3); sandy loam; moderate medium to very fine polyhedral structure; rough ped-fabric; weak consistence when dry; pH 7.5; smooth and abrupt boundary to:

A12

5–15

Dark brown (7.5YR3/2); loam, massive (structureless); earthy ped-fabric; firm consistence when dry; weakly cemented cultivation pan, pH 8.0; abrupt and wavy boundary to:

B21

15–35

Yellowish red (5YR4/5); light medium clay, strong coarse prismatic, parting to medium angular blocky structure; smooth ped fabric; strong consistence when dry; very few fine manganiferous nodules; pH 8.5; gradual and smooth boundary to:

B22k

35–75

Reddish yellow (7.5YR6/6); light clay; weak coarse polyhedral structure; rough ped fabric; firm consistence when moderately moist; few faint fine red mottles; very many extremely coarse calcareous soft segregations with very few medium calcareous nodules and argillaceous tubules; pH 9.5; diffuse and smooth boundary to:

B23k

75–135

Reddish yellow (7.5YR7/6); light clay; weak medium to coarse polyhedral structure; rough ped fabric; weak consistence when moderately moist; many extremely coarse calcareous soft segregations and few fine manganiferous fragments; pH 9.5.
Management considerations
  • High susceptibility to wind erosion
  • Alkaline subsoils with calcareous soft segregations and nodules, manganese flecks and argillaceous (clayey) tubules
  • Plough pan at top of the A12 horizon (5-15 cm)
  • Medium to very fine roots observed to 50 cm
  • Possible slight to moderate soil structure decline susceptibility due to poorer structure and dispersibility in the subsoil

Site
WLRA131
Sample depth cm
pH
EC
dS/m
NaCl
%
Ex Ca
cmol-/kg
Ex Mg
cmol-/kg
Ex K
cmol-/kg
Ex Na
cmol-/kg
Ex Al
mg/kg
Ex acidity
cmol-/kg
FC
-30okPa
PWP
-1500okPa
KS
%
FS
%
Z
%
C
%
Horizon
H2O
CaCl2
A11
0­5
7.7
7.3
0.19
0.1
1.7
2
13
3.8
2
0.29
NA
NA
NA
NA
NA
NA
A12
5­15
7.5
7.1
0.12
0.09
1.2
2
13
4.2
1.6
0.45
NA
NA
NA
NA
NA
NA
B21
15­35
8.5
8
0.18
NA
NA
3.1
15
7.7
1.6
0.98
NA
NA
NA
NA
NA
NA
B22K
35­75
9.1
8.5
0.51
NA
NA
5.9
8.5
12
2
3.6
NA
NA
NA
NA
NA
NA
B23
75­135+
9.9
9.4
0.66
NA
NA
NA
2.6
11
2.2
7.1
NA
NA
NA
NA
NA
NA
Note: NA=not assessed
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