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DOAHG6

WLRA - soil pit DOAHG6- landscape
Track into native vegetation
    Site Code
DOAHG6


    Location

Halls Gap, western Victoria

    Landform

Footslope

    Geology

Quaternary Alluvium & Colluvium: gravel, sand, silt

    Element

Hillslope: Upper slope
Horizon
Depth (cm)
Description

A1

0–15

Dark Greyish brown (10YR4/2); sandy loam; massive (structureless); very weak consistence (dry and moist); pH 6.5; sharp boundary to:

A2

15–40

Light yellowish brown (10YR6/4m); conspicuously bleached (10YR8/2d); loamy sand; massive (structureless); firm consistence (dry); pH 6.0; clear boundary to:

B21

40–70

Yellowish brown (10YR5/8) with yellowish red (5YR5/8) mottles; medium clay (sandy); moderate fine and medium angular blocky structure; smooth ped-fabric; firm consistence (dry); very few ferruginous concretions; pH 5.5; clear boundary to:

B22

70–100

Light yellowish brown (10YR6/4) with red (2.5YR4/6) and strong brown (7.5YR5/8) mottles; sandy medium clay; moderate fine and medium angular blocky structure; smooth ped-fabric; firm (dry); few ferruginous concretions; pH 6.1.
Management considerations
  • Strong texture contrast soil, generally slightly acidic. Alkaline subsurface soil
  • Relatively leached subsurface soil, less nutrients, but drainage not restrictive until subsoil (texture and mottling)
  • Increase in sodium and magnesium at depth and decreases calcium; more likely to be dispersive
  • Generally low to moderate nutrient availability.
  • Landscape element; hillslope. Position will often determine depth to variable depth weathered parent material
Site
DOAHG6
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
cmol-/kg
Ex acidity
cmol-/kg
FC
-30okPa
PWP
-1500okPa
KS
%
FS
%
Z
%
C
%
Horizon
H2O
CaCl2
A1
0–15
6.5
NA
0.02
NA
2.6
0.2
0.2
0.1
NA
4.9
11.6
3.8
NA
NA
NA
1.60
A2
15–40
6.0
NA
0.01
NA
0.4
0.1
0.1
0.1
NA
0.9
8.5
1.8
NA
NA
NA
NA
B21
40–70
5.5
NA
0.04
NA
0.8
1.4
0.2
0.2
NA
5.8
23.9
9.4
NA
NA
NA
NA
B22
70–100
6.1
NA
0.03
NA
0.2
3.7
02
0.3
NA
7.6
30.4
16.0
NA
NA
NA
NA

Note: NA=not assessed
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