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LS13a

WLRA - soil pit LS13a- landscape
Low lying plains with black box and lignum bush
    Site Code
LS13a
WLRA - soil pit LS13a- profile
Epicalcareous-Epihypersodic, Self-mulching, Grey Vertosol

    Location

Netherby, western Victoria

    Landform

Gently undulating plain

    Geology

Quaternary Woorinen Formation: aeolian dune sand, calcareous clay

    Element

Flat

    Slope

0–1%
Horizon
Depth (cm)
Description

A1

0–10

Dark yellowish brown (10YR3/3); medium clay; self-mulching; strong fine blocky structure; strong consistence (dry); pH 8.4; clear boundary to:

B21

10–30

Dark yellowish brown (10YR4/2); heavy clay; weak coarse prismatic, parting to strong medium blocky structure; very strong consistence (dry); contains a few (2–5%) soft carbonate segregations; pH 9.0; clear and wavy boundary to:

B22

30+

Strong brown (7.5YR4/6); medium heavy clay; strong medium subangular blocky structure; strong consistence (dry); contains a common (>20%) amount of soft carbonate; pH 9.2.
Management considerations
  • Clay texture throughout profile. Possible accumulative profile (two phases)
  • Self-mulching surface soil. Friable
  • Occurrences of significant cracking in the soil profile when dry. Cracking often appears at soil surface.
  • Alkaline profile with higher magnesium and sodium and saline at depth
  • Low lying area, poor site drainage, but subsoil colour (reddish) would indicate oxidation occurring
Site
LS13a
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
7.7
0.19
NA
18.5
6
1.4
0.7
NA
NA
26.2
17.5
NA
NA
NA
NA
B21
10–30
9
7.9
0.3
<0.05
10.5
8.4
0.9
4.4
NA
NA
31.7
22.6
NA
NA
NA
NA
B22
30–60
9.2
8.7
1.12
0.2
6.7
12
1.1
8.2
NA
NA
NA
NA
NA
NA
NA
NA
Note: NA=not assessed
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