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

Victorian Resources Online

WLRA143

WLRA - soil pit WLRA143- landscape
Cropped gentle rises

    Site Code
WLRA143
WLRA - soil pit WLRA143- profile
Vertic, Mottled-Hypernatric, Yellow SODOSOL

    Location

Stawell-Joel South Road, Joel South, western Victoria

    Landform

Gently undulating rise

    Geology

Pliocene Parilla Sand:
marine sand and silt

    Element

Hillslope

    Slope

3%

    Aspect

West
Horizon
Depth (cm)
Description

A1

0–10

Brown (10YR4/3);
sandy loam; massive (structureless); very weak dry consistence; common fine to very fine roots; water repellent; pH 6.5; abrupt and smooth boundary to:

A21

10–25

Brown (7.5YR4/3), conspicuously bleached very pale brown (10YR7/3 dry);
sandy clay loam; massive (structureless); very weak dry consistence; few fine subrounded quartz gravels; few fine to very fine roots; pH 4.9; clear and irregular boundary to:

A22

25–35

Strong brown (7.5YR4/6), conspicuously bleached very pale brown (10YR8/4 dry), with very few fine to medium distinct yellow mottles;
loamy sand, silty; massive (structureless); very weak dry consistence; few fine angular platy quartz gravels; common coarse ferromanganiferous nodules; few fine to very fine roots; pH 5.4; abrupt and irregular boundary to:

B21

35–80

Brownish yellow (10YR6/6) with many medium to coarse prominent dark red (10R3/6) mottles;
heavy clay; strong coarse to very coarse prismatic structure; rough ped-fabric; very firm moderately moist consistence; common distinct slickensides; few fine to very fine roots ; pH 7.4; diffuse and smooth boundary to:

B22

80–110+

Dark red (10R3/6) with many coarse to very coarse prominent light yellowish brown (10YR6/4) mottles;
heavy clay; weak medium to coarse prismatic structure; rough ped-fabric; strong moderately moist consistence; few distinct slickensides; few fine to very fine roots; pH 5.4.

Management Considerations

  • Strong texture contrast profile, highly sodic subsoil
  • Subsurface horizon is leached (bleached) with restrictive interface with subsoil (Note less clay than above and below). Few nutrients available
  • Acidic subsurface soil, neutral to alkaline upper subsoil and acidic deeper subsoil (local characteristic of parent material?)
  • Subsoil is very highly dispersive. Limited (preferably no) exposure necessary to remain stable. May be slightly saline with depth.
  • Surface soil is only slightly dispersive
  • Landscape position ,broad shallow ridge; slightly water shedding

Horizon
Depth (cm)
pH (water)
pH (CaCl2)
EC
dS/m
NaCl
%
Exchangeable Cations
cmol-/kg
Field Capacity
(pF2.5)
Wilting Point
(pF4.2)
Coarse Sand
%
Fine Sand
%
Silt
%
Clay
%
Ca
Mg
K
Na
A1
0–10
6.5
6.2
0.19
7.2
0.85
0.68
0.41
28.8
8.3
34.2
39.8
7.6
16.5
A21
10–25
4.9
4.3
<0.05
0.98
0.24
0.09
0.13
15.3
3.6
41.4
39.2
12.8
6.5
A22
25–35
5.4
4.9
<0.05
B21
35–80
7.4
6.4
0.23
4.5
10
0.59
5.3
51
31.9
1.8
3.1
22
67.5
B22
80–110+
5.4
4.8
0.37
Page top