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LS8

WLRA - soil pit LS8- landscape
Gently undulating plain with buloke trees
    Site Code
LS8
WLRA - soil pit LS8- profile
Vertic (and Calcic), Mesonatric, Red Sodosol

    Location

Broughton, western Victoria

    Landform

Plain

    Geology

Quaternary Woorinen Formation: aeolian dune sand, calcareous clay

    Element

Flat

    Slope

0%

    Aspect

–
Horizon
Depth (cm)
Description

A1

0–8

Dark brown (7.5YR3/3); fine sandy clay loam; weakly structured; firm consistence (dry); pH 6.8.

B21

8–14

Reddish brown (5YR4/4); light medium clay; strong coarse blocky structure; very strong consistence (dry); pH 8.0.

B22

14–30

Yellowish red (5YR4/6); medium clay; strong medium prismatic, parting to strong fine blocky structure; strong consistence (dry); pH 8.6.

B23

30–45

Yellowish red (5YR3/6); heavy clay; strong medium prismatic, parting to strong fine blocky structure; strong consistence (dry); pH 8.9.

B24k

45–70

Light brown (7.5YR6/4) and, (7.5YR3/2); light medium clay; contains a common (10-20%) amount of soft and hard carbonate segregation's; pH 9.2.

B25

70–100

Light yellowish brown (10YR6/4); heavy clay; moderate to strong prismatic structure; pH 9.1.

B26

100–140

Light yellowish brown (10YR6/4); heavy clay; moderate to strong lenticular structure; pH 9.0.
Management considerations
  • Texture contrast between surface (A1) and clay subsoil horizons.
  • Shallow and hardsetting surface soil. Susceptible to sheet and rill erosion Some physical resistance into subsoil
  • Vertic properties (lenticular structure) in deep subsoil.
  • Alkaline subsoil, strongly sodic with high magnesium and evident calcium carbonate
  • Deeper subsoil likely to be highly dispersive
  • Strong structure in upper subsoil and brighter (reddish) colours would suggest adequate drainage and gas movement for this part of the profile
Site
LS8
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
A1
0–8
6.8
6.2
0.28
NA
6.5
3.9
1.2
0.5
NA
NA
16
10.6
NA
NA
NA
NA
B21
8–14
8.0
6.8
0.18
NA
7.6
5.4
0.7
2.8
NA
NA
24.3
16.1
NA
NA
NA
NA
B22
14–30
8.6
7.6
0.43
NA
9.7
8.4
0.8
6.4
NA
NA
36.7
19
NA
NA
NA
NA
B23
30–45
8.9
8.2
1.1
0.22
9.8
11.4
1.0
11.3
NA
NA
NA
NA
NA
NA
NA
NA
B24
45–70
9.2
8.5
1.5
0.27
7.1
9.4
1.0
9.9
NA
NA
NA
NA
NA
NA
NA
NA
B25
70–100
9.1
8.5
1.88
0.35
8.4
11.7
1.2
12.6
NA
NA
NA
NA
NA
NA
NA
NA
B26
100–140
9.0
8.5
1.95
0.38
8.4
11.6
1.1
13.5
NA
NA
NA
NA
NA
NA
NA
NA
B27
140+
9.1
8.6
2.05
0.36
9
12.1
1.4
14.6
NA
NA
NA
NA
NA
NA
NA
NA
Note: NA=not assessed
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