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LS16

WLRA - soil pit LS16- landscape
Plain with Malle vegetation in natural state
    Site Code
LS16
WLRA - soil pit LS16- profile
Epicalcareous (and Hupercalcic)-Epihypersodic, Epipedal, Grey Vertosol

    Location

Perenna, western Victoria

    Landform

Gently undulating plain

    Geology

Quaternary Woorinen Formation: aeolian dune sand, calcareous clay

    Element

Plain­Flat

    Slope

0–1%
Horizon
Depth (cm)
Description

A1

0–10

Very dark grey (10YR3/1); light medium clay; moderate coarse blocky structure; strong consistence (dry); pH 8.4.

B21k

10–30

Light brownish grey (2.5Y6/2); medium clay; strong coarse prismatic, parting to moderate coarse blocky structure; strong consistence (dry); contains a common (10­20%) amount of carbonate soft segregations; pH 9.1.

B22k

30–50

Light grey (5Y7/2); medium clay; strong medium prismatic parting to moderate medium blocky structure; strong consistence (dry); contains a common (10­20%) amount of soft calcium carbonate; pH 9.7.

B23

50–150

Light grey (5Y7/2) with yellow (10YR7/6) diffuse mottles; medium heavy clay; moderate fine polyhedral structure; pH 9.5.

B24

150+

Light grey (5Y7/2) with (10YR6/8) mottles; heavy clay; moderate lenticular structure; firm consistence (moist); contains large sand pockets; pH 9.3.
Management considerations
  • Clay texture throughout profile
  • Strong vertic properties (as evidenced by lenticular structure)
  • Zone of maximum soft carbonate accumulation occurs in the B21 horizon from 10 cm in depth (ie. hypercalcic)
  • Plain, poor site drainage. Pale soil colours indicating poor internal drainage
  • Alkaline profile with high magnesium, sodium and salinity at depth
Site
LS16
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
0–10
8.4
7.8
0.24
NA
18.3
5.4
2.3
0.6
NA
NA
23.6
15
NA
NA
NA
NA
B21k
10–30
9.1
8.2
0.16
NA
13.9
8
1.1
1.1
NA
NA
29.6
19.7
NA
NA
NA
NA
B22
30–50
9.7
8.7
0.43
<0.05
5.2
14.8
1.2
4.5
NA
NA
NA
NA
NA
NA
NA
NA
B23
50–150
9.5
8.8
0.99
0.15
2.6
16.2
1.8
9.7
NA
NA
NA
NA
NA
NA
NA
NA
B24
150+
9.3
8.7
1.49
0.29
2.8
16.1
1.8
9.7
NA
NA
NA
NA
NA
NA
NA
NA
Note: NA=not assessed
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