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ESAS4

Plot: O'KeefeLocation: Boorhamon
Aust. Soil Class: Bleached, Eutrophic, Red DERMOSOL

ESAS4 landscape
ESAS4Landscape


Soil Profile Morphology:

Surface Soil

Ap
0-10 cm
Brown (10YR4/3); fine sandy clay loam; very firm to strong consistence (dry); some compaction; pH 5.7; abrupt change to:
ESAS4 profile
ESAS4 profile
A2
10-20 cm
Yellowish red (5YR5/6); very fine sandy clay loam; strong consistence (dry); some compaction; pH 5.5; clear change to:
Subsoil
B1
20-30 cm
Red (2.5YR4/8); very fine sandy clay loam; weak coarse (20 - 50 mm) blocky structure; strong to very strong consistence (dry); pH 5.2; clear change to:
B21
30-60 cm
Red (2.5YR4/6); light medium clay; moderate fine to coarse (5 – 50 mm) subangular blocky structure; strong to very strong consistence (dry); pH 5.6; gradual change to:
B22
60-90 cm
Red (2.5YR5/8); medium clay (fine sandy); moderate to strong fine to coarse (5 – 50 mm) polyhedral structure; strong to very strong consistence (dry); pH 6.3; gradual change to:
B23
90+ cm
Strong brown (7.5YR5/6) with many (40%) dark yellowish brown (10YR4/4); medium clay (fine sandy); moderate coarse (50 – 100 mm) prismatic, parting to moderate medium to coarse (10 – 50 mm) subangular blocky structure; very strong consistence (dry); pH6.3.
Key Profile Features:
Soil Profile Characteristics:

pH
Salinity Rating
Sodicity
Dispersion
Surface
(A1 horizon)
Moderately Acid
Very Low
Non-Sodic
None1
Subsoil
(B21 horizon)
Moderately Acid
Very Low
Non-Sodic
None
Deeper subsoil
(at 90+ cm)
Slightly Acid
Very Low
Non-Sodic
None
1 Slight dispersion after remoulding

ESAS4 graphs
Horizon
Horizon Depth
(cm)
pH
(water)
pH
(CaCl2)
EC 1:5
Exchangeable Cations
Ca
Mg
K
Na
meq/100g
Ap
0-15
5.7
5.1
0.09
1.7
3.9
0.5
0.98
<0.05
A2
15-20
5.5
4.9
<0.05
0.58
2.3
0.38
0.43
<0.05
B1
20-30
5.2
4.7
0.05
2.5
0.61
0.44
<0.05
B21
30-60
5.6
5
0.05
3.1
1.9
0.56
<0.05
B22
60-90
6.3
5.7
0.05
2.1
3.6
0.37
0.09
B23
90+
6.3
5.8
0.05
2
4.2
0.33
0.11

Horizon
Horizon Depth
(cm)
Exchangeable Aluminium
(mg/kg)
Exchangeable Acidity
(meq/100g)
Field Capacity
pF 2.5
Wilting Point
pF 4.2
Coarse Sand
(0.2-2.0 mm)
Fine Sand
(0.02-0.2 mm)
Silt
(0.002-0.02 mm)
Clay
(<0.002 mm)
Ap
0-15
<10
5.6
26.5
7.4
4
46
31
15
A2
15-20
<10
3.9
21.1
7
3
49
27
18
B1
20-30
14
4.1
22.1
8.9
3
46
22
27
B21
30-60
<10
4.3
23.5
12.1
3
36
20
41
B22
60-90
<10
4.5
25.0
11.9
4
42
22
32
B23
90+
<10
3.7
25.1
10.6
2
53
18
24


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