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LWA4

Location: WalpeupAustralian Soil Classification: Bleached, Hypercalcic, Yellow KANDOSOL
General Landscape Description: Crest of DuneSite Description: Landcare delivery site
Geology:Quaternary aeolian deposits (Woorinen Formation)

LWA4 landscape
LWA4 Landscape

Soil Profile Morphology:

Surface Soil

A10-13 cm Brown (7.5YR5/4); sand; loose; pH7.9:
LWA4 profile
LWA4 Profile
A2113-25 cmReddish yellow (7.5YR6/6); clayey sand; very weak to firm consistence (slightly moist); pH 7.9:
A2225-38 cm Light brown (7.5YR6/4); sand; very weak consistence (dry); pH 8:


Subsoil
B21 38-50 cmReddish yellow (7.5YR6/6); sandy loam (clayey); bleached capping to horizon; strong consistence (dry); pH 8.7:
B22k50-75 cmPink (7.5YR7/4) with many (30%) reddish yellow (7.5YR6/6) mottles; sandy clay loam; weak to firm consistence (dry); soft and semi-hard carbonate ‘bombs’; pH 9.5:
B2375-95 cmLight yellowish brown (10YR6/4) with very many (40%) reddish yellow (7.5YR6/6) mottles; sandy clay loam; pH 9.7:
B2495-115 cmLight brown (7.5YR6/4); sandy clay loam; weak coarse (50-100 mm) blocky structure; very many (60-80%) fine-earth carbonates and semi-hard calcareous nodules; pH 9.9:
115-140 cmLight brown (7.5YR6/4) with reddish yellow (7.5YR6/6) mottles; clayey sand; weak coarse to medium (10-50 mm) blocky structure; pH 9.9.


Key Profile Features:



Soil Profile Characteristics:

pH
Salinity Rating
Surface
(Ap horizon)
Slightly alkaline
Low
Non-sodic
None
Subsoil
(B21 horizon)
Strongly alkaline
Low
Sodic
Strong
Deeper subsoil
(at 115-140 cm)
Extremely alkaline
Medium

LWA4 graphs

Horizon
Horizon Depth
pH (water)
pH CaCl2
EC
1:5
Org. Carbon
mg/kg
Exchangeable Cations
Ca
Mg
K
Na
Meq/100g
A1
0-13
7.9
7.5
0.12
< 0.3
2.8
0.8
0.3
0.1
A21
13-25
7.9
7.4
0.06
< 0.3
2.3
0.7
0.3
0.1
A22
25-38
8.0
7.5
0.06
2.0
0.7
0.3
0.2
B21
38-50
8.7
7.9
0.08
3.1
3.0
0.5
0.9
B22K
50-80
9.5
8.8
0.29
B23
80-95
9.7
9.0
0.34
B24
95-115
9.9
9.1
0.54
115-140
9.9
9.2
0.45

Horizon
Horizon Depth
Boron
mg/kg
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
0-13
0.5
5.9
1.3
53
42
<1.0
2
A21
13-25
0.6
8.2
1.7
48
45
1.5
2
A22
25-38
0.5
9.0
1.7
47
47
3
3
B21
38-50
1.3
14.9
5.6
39
47
4
10
B22K
50-80
5.0
20.2
9.2
37
38
3
18
B23
80-95
11.0
18.4
8.2
36
41
5
18
B24
95-115
20.9
9.8
115-140


Management Considerations:


Note:
CC BY 4.0 AU

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