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HOR2

    Site Code
HOR2

    Location

Lower Norton, western Victoria

    Landform

Gently Undulating Plain

    Geology

Pliocene Parilla Sand: marine sand and silt

    Element

Summit surface

    Aspect
3 %
Horizon
Depth (cm)
Description

A1

0–10

Dark brown (10YR3/3); loamy sand; weak platy to single grain (structureless); weak consistence; abundant ferruginous concretions and sandstone; pH 5.9; sharp boundary to:

A2

10–15

Brownish yellow (10YR6/6); bleached white (10YR 8/1 dry); loamy sand; single grain (structureless); very weak dry consistence; abundant ferruginous concretions and sandstone; pH 8.2; sharp boundary to:

B21

15–75+

Red (2.5YR5/6) with many coarse distinct (7.5YR5/6) mottles; medium clay; very strong slightly moist consistence; pH 8.0.

B23k

100–120

Light yellowish brown (2.5Y6/4) with many distinct fine (5YR4/6) mottles; medium clay; weak to moderate medium polyhedral structure; smooth ped-fabric; strong moderately moist consistence; few fine to medium ferro-manganiferous concretions with common extremely coarse calcareous soft segregations; common distinct slickensides and clay skins; pH 9.2; clear and wavy boundary to:

B3k

120–145+

Light yellowish brown (2.5Y6/3) with few distinct fine (5YR4/4) mottles; medium heavy clay; weak medium polyhedral structure; smooth ped-fabric; firm moist consistence; many fine manganiferous and coarse ferro-manganiferous concretions/nodules with few corse calcareous soft segregations; few distinct slickensides and clay skins; very strongly cemented broken nodular ferricrete pan; pH 9.2.
Management considerations
  • Texture contrast soil, sodic and at depth.
  • Leached sub surface horizon.
  • Alkaline subsoil with coarse structure, roots confined to coarse structure
  • Many ferruginous nodules/sandstone in deep subsoil.
  • Imperfect to slow subsoil drainage; clayey, coarse structure, highly dispersive, may be vertic at depth.
  • Moderate to high susceptibility to soil structure decline.
  • Moderate to high susceptibility to soil compaction, subsurface and upper subsoil.
  • Landscape position, long lower slope.



Site
HOR2
Sample depth cm
pH
EC
dS/m
NaCl
%
Ex Ca
cmol-/kg
Ex Mg
cmol-/kg
Ex K
cmol-/kg
Ex Na
cmol-/kg
ESP
N
Oxidised Organic C
7.8FC
-30okPa
2.7PWP
-1500okPa
NAKS
%
NAFS
%
NA Z
%
NAC
%
Horizon
H2O
CaCl2
A1
0–10
5.9
4.7
0.01
NA
1.0
0.3
0.1
0.0
0.0
0.04
0.69
5.6
3.2
NA
NA
NA
NA
A2
10–15
8.2
7.5
0.10
0.02
1.3
1.2
0.1
0.7
21.2
NA
NA
7.8
2.3
NA
NA
NA
NA
B21
15–75+
8.0
7.1
0.25
0.00
2.9
7.2
0.4
2.8
21.1
NA
NA
22.3
15.3
NA
NA
NA
NA

Note: NA=not assessed
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