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LWA15

Note: This profile is in draft format only, will be finalised in the near future

Location: Sea LakeAustralian Soil Classification: Calcic, Subnatric, Red SODOSOL
General Landscape Description: Gently undulating plains with hummocky risesGeology: Quaternary alluvial and aeolian deposits

LWA15 Landscape
LWA15 Landscape

Soil Profile Morphology:


Surface Soil

Ap0-10 cmBrown (7.5YR4/4); loamy sand; loose consistence (dry); non-calcareous; pH 7.1; clear change to:
LWA15 Profile
LWA15 Profile
A1210-15 cmBrown (7.5YR4/4); loamy sand; massive; very weak consistence (dry); non-calcareous; pH 6.9; abrupt change to:
A215-18 cmLight yellowish brown (10YR6/4) with pinkish (7.5YR7/3) mottles; sand; massive; non-calcareous; pH 7.6; sharp and wavy change to:
Subsoil

B2118-45 cmLight brown (7.5YR6/4) with yellowish red (5YR4/6) mottles; sandy clay; moderate, very coarse (>100 mm) columnar, parting to weak to moderate, coarse (20-50 mm) angular blocky structure; strong consistence (dry) at cap, very firm to strong consistence (dry); non-calcareous; pH 9.6; clear change to:
2B245-80 cmLight reddish brown (2.5YR6/3) with many (40%) reddish yellow (5YR6/8) mottles; medium heavy clay; moderate coarse (50-100 mm) prismatic, parting to strong coarse (50-100 mm) angular blocky and strong fine (5-10 mm) polyhedral structure; soft calcareous segregations common (5-10%) with some hard calcareous nodules; manganese flecks present; pH 9.6; abrupt change to:
D180-120 cmBrownish yellow (10YR6/6 and 6/8) with many (20%) light grey (10YR7/1) mottles; gravel with clay; massive; firm to very firm consistence (dry), partially cemented as a whole; many (30-40%) rounded and sub-rounded small quartz gravel (2-6 mm); pH 9.3; gradual change to:
D2120+ cmLight grey (10YR7/1) with brownish yellow (10YR6/8) mottles; gravel with clay; massive; firm to very firm consistence (dry), partly cemented as a whole; many (30-40%) rounded and sub-rounded quartz small quartz pebbles (2-6 mm); pH 7.4.


Key Profile Features:


Soil Profile Characteristics:

pH
Salinity Rating
Surface
(A1 horizon)
Slightly Acid
None
Subsoil
(B21 horizon )
Very Strongly Acid
Complete
Deeper subsoil
(120+ cm)
Slightly Alkaline

LWA15 Graphs

Horizon
Horizon Depth
pH (water)
pH CaCl2
EC
1:5
Org. Carbon
mg/kg
Exchangeable Cations
Ca
Mg
K
Na
Meq/100g
Ap
0-10
7.1
6.9
0.1
0.46
2.2
0.67
0.44
0.11
A12
10-15
6.9
6.5
0.07
0.36
1.4
0.39
0.24
0.18
A2
15-18
7.6
7.2
0.06
1
0.34
0.12
0.15
B21
18-45
9.6
8.7
0.24
4.9
6
0.8
2.9
2B2
45-80
9.6
8.9
0.53
3.7
16
2
8.5
D1
80-120
9.3
8.3
0.28
0.94
8.7
0.81
6.6
D2
120+
7.4
6.4
0.22
0.53
4.8
0.42
5.6

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)
%
Ap
0-10
0.6
5.3
1.7
64
30
4
2
A12
10-15
0.5
5.2
1.3
61
33
4
2
A2
15-18
0.4
8.1
1
43
52
3
3
B21
18-45
7.1
21.6
10.9
38
34
7
21
2B2
45-80
18
43.1
27.3
25
15
9
47
D1
80-120
9.7
26.6
13.3
65
5
6
23
D2
120+
4
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