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VIT4

Location: Buckland ValleyAustralian Soil Classification: Acidic, Mesotrophic, Red DERMOSOL
General Landscape Description: Gentle rise – 2nd terrace level of Buckland River.Site Description: Vineyard

VIT4 landscape
VIT4 landscape


Soil Profile Morphology:

Surface Soil

A110-12 cmDark brown (7.5YR3/3); fine sandy clay loam; moderate - strong medium to fine subangular blocky structure; very firm consistence (dry); pH 5.8; clear change to:
VIT4 profile
VIT4 profile
A1212-20 cmDark Brown (7.5YR3/4) and light brown (7.5YR6/4 dry); fine sandy clay loam; strong medium to fine subangular blocky structure; firm consistence (slightly moist); many large macropores present; some (5%) fine dark manganese staining; pH 5.4; clear change to:
Subsoil
B2120-40 cmDark red (2.5YR4/6); light medium clay; strong coarse to medium subangular blocky, parting to moderate to strong fine polyhedral structure; firm consistence (moist); many macropores present; pH 5.2; gradual change to”:
B2240-70 cmDark red (2.5YR4/8); medium clay; moderate to strong coarse medium subangular blocky structure; weak to firm consistence (moist); few (5%) rounded quartz pebbles; many macropores present; pH 5.0; gradual change to:
B370-100 cmDusky red (2.5YR3/4); fine sandy clay loam; moderate – strong, medium to fine subangular blocky structure; weak to firm consistence (moist); pH 5.1.

Key Profile Features:
  • General increase in texture (clay content) with depth down the profile.

Soil Profile Characteristics:

Horizon
pH
Salinity Rating
Surface
(A11 horizon)
Moderately Acid
Very Low
Non-Sodic
None
Subsoil
(B21 horizon)
Strongly Acid
Very Low
Non-Sodic
None
Deeper subsoil
(at 70-100 cm)
Strongly Acid
Very Low
Non-Sodic
None


VIT4 graphs

Horizon
Horizon Depth
(cm)
pH
(water)
pH
(CaCl2)
EC 1:5
Exchangeable Cations
Ca
Mg
K
Na
meq/100g
A11
0-12
5.8
5.2
0.09
7.6
2.1
1.9
0.09
A12
12-20
5.4
4.7
0.06
5.0
1.0
1.3
0.09
B21
20-40
5.2
4.3
0.05
3.7
1.1
1.4
0.07
B22
40-70
5.0
4.2
0.06
2.0
0.67
1.6
0.10
B3
70-100
5.1
4.3
0.06
3.0
0.55
1.9
0.08

Horizon
Horizon Depth
(cm)
Exchangeable Aluminium
mg/kg
Exchangeable
Acidity
mg/kg
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)
A11
0-12
<10
11
34.3
13.3
10
28
30
26
A12
12-20
59
11
32.6
12.7
8
22
35
30
B21
20-40
260
10
33.6
15.9
2
17
34
46
B22
40-70
420
9.6
34.9
16.6
2
20
28
46
B3
70-100
420
12
34.5
18.6
3
20
23
52

Notes:
  • Many roots to 70 cm depth.
  • Profile described by Mark Imhof and Kevin Powell (December 2004).
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