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PPW2

Location: Leakes Road, Rockbank
Aust. Soil Class.: Sodic, Eutrophic, Red Dermosol (shallow subsoil profile)
General Landscape Description: Next to olive grove, on slope 650 m of summit of Mt Kororoit.
Site Description: Olive roots run parallel at rock up to 100 cm out from track.

PPW1-3 Landscape
PPW1-3 Landscape


Soil Profile Morphology:

Surface Soil

A10-12 cmDark red (2.5YR4/6); fine sandy clay loam; moderate to strong coarse to medium blocky structure; pH 6.8; clear change to:
PPW2 profile
PPW2 Profile
Subsoil
B2112-25 cmDark red (2.5YR4/6); medium clay; moderate very coarse, parting to medium strong prismatic, parting to strong medium blocky structure; pH 7.3; gradual change to:
B2225-45 cmDark red (2.5YR4/6); medium clay+; moderate very coarse, parting to moderate coarse prismatic, parting to strong medium blocky structure; pH 8.5:
C45-100 cmSmall hunks of very fine scoria (50-150 mm) embedded in weathering carbonate layers (i.e. patches); weathering scoria with large patch of carbonate (20%).

Key Profile Features:

Soil Profile Characteristics:

pH
Salinity Rating
Surface
(A1 horizon)
Slightly Acid
Non-Sodic
Subsoil
(B21 horizon)
Slightly Alkaline
Strongly Sodic
Deeper subsoil
(at 25-45 cm)
Moderately Alkaline
Strongly Sodic

PPW2 graphs

Horizon
Horizon Depth
pH (water)
pH CaCl2
EC
1:5
NaCl
Exchangeable Cations
Ca
Mg
K
Na
Meq/100g
A1
0-12
6.7
6.7
0.7
<0.01
18
8.7
1.4
0.6
B21
12-25
7.3
6.7
0.41
0.02
8.4
13
2.5
5.7
B22
25-45
8.5
7.9
0.64
0.03
9.8
21
2.4
9.5

Horizon
Horizon Depth
Ex Al
mg/kg
Ex Ac
meq/100g
Field
pF2.5
g/100g
Wilting Point
pF4.2
g/100g
Coarse Sand
(0.2-2.0mm)
%
Fine Sand
(0.02-0.2mm)
%
Silt
(0.002-0.02mm)
%
Clay
(<0.002mm)
%
A1
0-12
17
27.5
37.9
5
10
5
73
B21
12-25
31.5
45.3
4
9
5
76
B22
25-45
34
54.4
4
10
10
70
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