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MP39

Location: Walpeup

Australian Soil Classification: Bleached-Sodic, Hypercalcic, Red KANDOSOL (thick, sandy surface horizons). This profile overlies an older soil profile.

General Landscape Description: Crest of an east-west dune.
Geology: Quaternary (Woorinen Formation) deposit).


Image: MP38 and MP39 landscape
MP38 and MP39 landscape


Soil Profile Morphology:

Surface Soil
A10-15 cmBrown (7.5YR5/4); sand; apedal (structureless); loose consistence slightly moist; non calcareous; pH 8.5:
MP39 profile
MP39 profile
A215-40 cmReddish yellow (7.5YR7/6) pink (7.5YR7/4d); sand; apedal (structureless); loose consistence slightly moist; non calcareous; pH 8.8; sharp and wavy change to:
Subsoil
B140-75 cmReddish yellow (7.5YR6/6) with many faint yellow (10YR6/6) mottles; clayey sand; weakly structured; weak consistence slightly moist; contains very few (<2%) soft carbonates; very highly calcareous; pH 8.8; clear and wavy change to:
B2175-100 cmYellowish red (5YR5/8) with few faint light yellowish brown (10YR6/4) mottle and common very faint yellow (10YR7/6) mottle; sandy clay loam; weakly structured; firm to very firm consistence dry; contains a few (2%) soft carbonates; very highly calcareous; pH 8.9:
B22k100-125 cmReddish yellow (7.5YR6/6) with pale yellow (2.5Y7/4); sandy loam; weakly structured; very firm consistence dry; soft carbonate common (10-20%); very highly calcareous; pH 9.3:
B31k125-155 cmPale yellow (2.5Y7/4) with reddish yellow (7.5YR6/6); sandy clay loam; moderate coarse blocky, parting to moderate medium blocky structure; smooth fabric; firm consistence dry; contains many (20-50%) soft and hard carbonates; very highly calcareous; pH 9.5:
B32155+ cmPinkish grey (5YR6/2); sandy clay loam; moderate coarse blocky structure; smooth fabric; contains soft and hard carbonate; very highly calcareous.


Soil Profile Characteristics:
pH
Salinity Rating
Surface
(A1 horizon)
Moderately Alkaline
Very Low
--
__
Subsoil
(B21 horizon)
Strongly Alkaline
Very Low
Non Sodic
None1
Deeper Subsoil
(at 100+ cm)
Very Strongly Alkaline
Very Low
Sodic
--
1 Moderate dispersion after remoulding.


Image: MP39 graphs

Horizon
Horizon Depth
(cm)
pH
(water)
pH
(CaCl2)
EC
1:5
NaCI
%
Exchangeable Cations
Total Nitrogen
%
Organic Carbon
%
Wilting Point
pF4.2
Coarse Sand
(0.2 - 2 mm)
Fine Sand
(0.02 - 0.2 mm)
Silt
(0.002 - 0.02 mm)
Clay
(<0.002 mm)
Ca
Mg
K
Na
meq/100g
A1
0-15
8.5
7.7
<0.05
1.3
0.4
0.2
0.1
0.03
0.11
1.2
35
60
0
5
A2
15-40
8.8
8.1
<0.05
          
          
          
          
0.9
B1
40-75
8.8
8.2
0.08
4.3
2.1
0.3
0.1
4.9
28
58
0
14
B21
75-100
8.9
8.3
0.11
3.8
4.9
0.6
0.2
6.9
26
55
0
22
B22k
100-125
9.3
8.5
0.11
          
          
          
          
7.2
27
48
0
22
B31k
125-155
9.5
8.5
0.21
<0.05
4
6.3
0.8
1.3
23
44
1
28


Profile Described By: Mark Imhof and Nathalie Baxter (September 1996).
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).

This material is presented in an archived form and is no longer maintained or updated. It is provided for general information only and should not be relied upon as current advice.

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