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WW383

Location: Dimboola East

Australian Soil Classification: Sodic, Calcic, Black CHROMOSOL


General Landscape Description: Level plain.
Site Description: Fallow.
Native Vegetation: Savannah Woodland.
Geology: Neogene (Tertiary).


Soil Profile Morphology:

Surface Soil

A10-5 cm Dark brown (7.5YR3/2); light clay, fine sandy; weak medium blocky structure; weak consistence moist; pH 7.5; sharp change to:


Subsoil

B215-15 cmDark brown (7.5YR3/2); light medium clay, fine sandy; weak coarse blocky structure; pH 7.6; gradual change to:

B225-25 cmDark reddish brown (5YR3/2); light medium clay; weak coarse blocky structure; pH 7.8; sharp change to:

B3125-50 cmDusky red (2.5YR3/4); medium clay; weak fine blocky structure; contains very few carbonate nodules (2-6 mm in size); pH 8.4; sharp change to:

B3250-70 cmDark reddish brown (5YR3/4); medium clay; weak medium blocky structure; contains a few carbonate nodules (2-6 mm in size); pH 9.2; sharp change to:

B3370-90 cmStrong brown (7.5YR5/6); medium clay; weak coarse blocky structure; contains a few carbonate nodules (2-6 mm in size); very highly calcareous; pH 9.6; sharp change to:

B34k90-120 cmPale brown (10YR6/3); medium clay; weak fine blocky structure; common coarse carbonate nodules present (6-20 mm in size); very highly calcareous; pH 9.5.

Soil Profile Characteristics:

pH
Salinity Rating
Surface
(A1 horizon)
Slightly Alkaline
Low
Non-Sodic
Subsoil
(B21 horizon)
Slightly Alkaline
Low
Non-Sodic
Deeper Subsoil
(at 90-120 cm)
Very Strongly Alkaline
High
Extremely Sodic



Image: WW383 graphs
The surface and upper subsoil are slightly alkaline. The deeper subsoil is very strongly alkaline.The surface has a low salinity rating. The upper subsoil has a low salinity rating becoming high at depth.The surface and upper subsoil are non-sodic. The deeper subsoil is strongly sodic becoming extremely sodic at depth.

Chemical and Physical Analysis:

Horizon
Horizon
Depth
(cm)
pH
(water)
pH
(CaCl2)
EC
dS/m
NaCl
%



Exchangeable Cations
Ca
Mg
K
Na
Meq/100g
A1
0-5
7.5
7.1
0.17
0.008
10
3.5
1.7
0.49
B21
5-15
7.6
7.2
0.2
0.014
12
3.9
1.8
0.64
B22
15-25
7.8
7.3
0.14
0.016
10
3.8
1.2
0.95
B31
25-50
8.4
7.7
0.26
0.02
15
7.6
1.8
3.4
B32
50-70
9.2
8.5
0.51
0.041
12
13
2.3
7.1
B33
70-90
9.6
8.8
0.73
0.073
6.2
12
2.1
9.2
B34k
90-120
9.5
8.8
1
0.125
5.3
11
2
11


Profile Described By: N.S. Badawy (March 1970).
CC BY 4.0 AU

This page contains material sourced from the Victorian Resources Online (VRO) website, originally published by the State Government of Victoria.

The content is provided under the Creative Commons Attribution 4.0 Australia licence (CC BY 4.0 AU).

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