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PVI10

Location: PVI Hamilton

Australian Soil Classification: Humose (& Vertic), Chromosolic, Redoxic, HYDROSOL
Northcote Factual Key: Dd 4.1
Great Soil Group: Humic gley

Geology: Alluvium overlying Quaternary basalt.
General Landscape Description: Level plain.
Soil Mapping Unit: Tabor loam.

Site Description: Grazing paddock.

Photo: Soil Pit PVI 10 Landscape
PVI10 Landscape


Soil Profile Morphology:

Surface Soil

A110-15 cmBlack (10YR2/1); loam; weak consistence (dry); pH 5.7; abrupt change to:

Photo: Soil Pit PVI 10 Profile
PVI10 Profile
A1215-25 cmBlack (10YR2/1); clay loam (organic); weak consistence (dry); some laminated peat in patches; pH 5.8; clear change to:

Subsoil

B21
25-45 cmVery dark grey (2.5Y3/0); medium heavy clay; moderate very coarse prismatic, parting to strong coarse blocky structure; strong consistence (dry); pH 6.5; clear change to:

B2245-100 cmGrey (10YR5/1) with many (20%) strong brown (7.5YR5/6) mottles; medium clay; moderate coarse prismatic, parting to strong medium to very fine lenticular structure; slickensides present; very firm consistence (moist); pH 7.8; gradual change to:

B23100-150 cmGrey (10YR5/1) with few (10%) strong brown (7.5YR5/6) mottles; light medium clay; strong very fine lenticular structure; very firm consistence (moist); very few (<1%) ferruginous nodules (5-10 mm); pH 8.1; clear change to:
B3150+ cmGreyish brown (2.5Y5/2); light medium clay; weak consistence (moist); pH 8.2.

Key Profile Features:

Soil Profile Characteristics:


pH
Salinity Rating
Surface Soil
(A1 horizon)
Moderately Acid
Low-Medium
-
None
Upper Subsoil
(25- 45 cm)
Slightly Acid
Low
Non-Sodic
None
Deeper Subsoil
(100-150 cm)
Moderately Alkaline
High
Sodic
-

Image: PVI10 Graphs

Horizon
Horizon
Depth
(cm)
pH
(water)
pH
(CaCl2)
EC 1:5
NaCI
%
Exchangeable Cations
Ca
Mg
K
Na
meq/100g
A1
0-15
5.7
5.3
0.29
7.4
5.7
2
0.6
A12
15-25
5.8
5.2
0.22
23
15
1.8
0.95
B21
25-45
6.5
5.8
0.24
20
19
1.6
0.94
B22
45-100
7.8
7.2
0.31
<0.01
15
19
1.7
1.3
B23
100-150
8.1
7.9
1.2
0.05
12
22
1.8
3.6
B3
150+
8.2
8.0
1.5


Horizon
Horizon
Depth
(cm)
Exchangeable
Aluminium mg/kg
Exchangeable Acidity
meq/100g
Field Capacity
pF2.5
Wilting Point
pF4.2
Coarse Sand
(0.2- 2.0 mm)
Fine Sand
(0.02- 0.2 mm)
Silt
(0.002- 0.02 mm)
Clay
(<0.002 mm)
A1
0-15
16
27
68
36
22
12
20
22
A12
15-25
17
26
56
40
34
8
12
24
B21
25-45
15
67
41
1
3
11
78
B22
45-100
64
37
1
7
11
76
B23
100-150
66
37
1
5
10
79
B3
150+

Profile Described By: Mark Imhof, Paul Rampant (January 2001).
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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