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LWA1

Location: ChinkapookAustralian Soil Classification: Epibasic, Pedal, Hypercalcic CALCAROSOL
General Landscape Description: Crest of east-west duneSite Description: Landcare delivery site
Geology:Quaternary Aeolian deposits (Woorinen Formation)

LWA1 Landscape
LWA1 Landscape

Soil Profile Morphology:

Surface Soil

A11 0-10 cm Brown (7.5YR4/4); loamy sand; soft surface condition; apedal; pH 7.2; clear change to:
LWA1 Profile
LWA1 Profile
A1210-15 cmBrown (7.5YR4/4); light sandy loam; apedal; pH 7.6; clear change to:


Subsoil
B115-25 cmYellowish red (5YR4/6); sandy clay loam; firm to very firm consistence (dry); few (5%) fine-earth carbonates; visible effervescence; evidence of compaction at 15-22 cm; macropores present pH 8.2; clear change to:
B2125-40 cm Yellowish red (5YR5/6); sandy clay; weak to moderate, coarse to fine (10–50 mm) subangular blocky structure; few (5%) fine-earth carbonates; pH 8.5; gradual change to:
B22k 40-70 cmReddish yellow (5YR6/6); sandy clay; weak to moderate, coarse to fine (5–50 mm) subangular blocky structure; many (40%) calcareous nodules (5-20 mm) and fine earth carbonates; pH 8.7; gradual change to:
B23k 70-110 cmYellowish red (5YR4/6); light sandy clay loam; many (40%) calcareous nodules (1 cm) and fine-earth carbonates; macropores present; pH 9.4; gradual change to:
B24 110-140 cmRed (2.5YR5/8); light sandy clay loam; firm to strong consistence (dry); few (10%) calcareous nodules with some hard carbonate/silica nodules (5 cm);very many small dark flecks; pH 9.8.


Key Profile Features:

Soil Profile Characteristics:

pH
Salinity Rating
Surface
(Ap horizon)
Slightly alkaline
Very low
Non-sodic
None
Subsoil
(B21 horizon)
Moderately alkaline
Very low
Non-sodic
None
Deeper subsoil
(at 110-140 cm)
Extremely alkaline
Medium
Strongly sodic
Strong

LWA1 graphs

Horizon
Horizon Depth
pH (water)
pH CaCl2
EC
1:5
Org. Carbon
mg/kg
Exchangeable Cations
Ca
Mg
K
Na
Meq/100g
A11
0-10
7.2
6.8
0.07
0.46
4.5
1.0
1.0
0.1
A12
10-15
7.6
7.2
0.07
0.37
5
1.1
0.8
0.1
B1
15-25
8.2
7.7
0.11
11
2.1
1.2
0.1
B21
25-40
8.5
8.0
0.12
23
3.3
0.8
0.1
B22K
40-70
8.7
8.1
0.12
21
5.1
0.5
0.3
B23K
70-110
9.4
8.5
0.23
19
7.1
0.8
2.1
B3
110-140
9.8
8.9
0.39
2
4.5
1.1
4.3

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)
%
A11
0-10
0.7
9.8
2.4
56
34
3
8
A12
10-15
0.6
9.7
2.6
57
31
3
9
B1
15-25
0.8
17.0
5.6
47
30
8
15
B21
25-40
0.8
22.3
7.3
39
30
7
16
B22K
40-70
0.9
24.0
8.4
35
26
5
18
B23K
70-110
3.9
21.2
8.5
36
28
5
17
B3
110-140
10.0


Note:
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