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SW2

SW2 landscape
Pasture used for grazing

    Site Code
SW2
SW2 profile
Humose, Hypocalcic, Black CHROMOSOL]
    Location
Grassmere
    Landform
Undulating rises
    Geology
Quaternary alluvial material and volcanic ash deposits overlying Tertiary period Port Campbell Limestone (Tmc)
    Element
Lower terrace of Merri Creek
Horizon
Depth (cm)
Description
A11
0-15 Black (10YR2/1) clay loam; strong medium polyhedral, parting to strong fine polyhedral structure; weak consistence moist; pH 7.6; gradual boundary to:

A12
15-25 Black (10YR2/1) clay loam; strong medium polyhedral, parting to strong fine polyhedral structure; weak consistence moist; pH 7.8; clear to gradual boundary to:

B21
25-45 Black (10YR2/1) light medium clay; strong medium polyhedral, parting to strong fine polyhedral structure (smooth faced peds); weak consistence moist; pH 8.0; gradual boundary to:

B22
45-60 Dark brown (7.5YR3/2) light clay; moderate medium blocky, parting to strong fine subangular blocky structure; weak consistence moist; pH 8.1 ; abrupt boundary to:

Note: The underlying horizons are layered tuff, volcanic ash and alluvial deposits of varying thickness.

D1
60-80 Greyish brown (10YR5/2) clayey marl; weakly structured; very weak consistence moist; contains a few (10%) carbonate nodules (5 –15 mm); pH 8.6; clear boundary to:

D2
80-90 Dark greyish brown (10YR4/2) fine sandy marl,structureless; very firm consistence moderately moist; abrupt boundary to:

D3
90-100 Very dark greyish brown (2.5Y3/2) fine sandy loam; structureless; pH 8.8; sharp boundary to:

D4
100-102 Carbonate layer:

D5
102-120 Very dark grey (10YR3/1) fine sandy marl; very firm consistence, moderately moist; variably compacted; distinctly layered.


Analytical data
Site SW2
Sample
depth
pH
EC
NaCl
Ex Ca
Ex Mg
Ex K
Ex Na
Ex Al
Ex acidity
FC
(-10kPa)
PWP
(-150kPa)
KS
FS
Z
C
Horizon
cm
H2O
CaCl2
dS/m
%
cmolc/kg
cmolc/kg
cmolc/kg
cmolc/kg
mg/kg
cmolc/kg
%
%
%
%
%
%
A11
0-15
7.6
7.0
0.35
N/R
42
13
0.72
2.9
N/R
N/R
N/R
39.7
8.2
20.3
21.5
27
A12
15-25
7.8
7.3
0.43
N/R
47
12
0.58
2.2
N/R
N/R
N/R
32.6
7.5
21
23.5
26
B21
25-45
8
7.4
0.42
N/R
49
18
1.03
3.2
N/R
N/R
N/R
46.2
6.7
15.2
14
49
B22
45-60
8.1
7.6
0.61
N/R
48
25
0.99
4.8
N/R
N/R
N/R
47.6
6.2
16.4
22
40.5
D1
60-80
8.6
7.9
0.53
N/R
49
24
0.45
4.6
N/R
N/R
N/R
27.6
2.9
17.9
12
14
D2
80-90
8.6
8
0.46
N/R
43
18
0.63
5.3
N/R
N/R
N/R
21.8
15.4
38.9
6.5
1.5
D5
102-120
8.8
8.1
0.31
N/R
29
8.3
0.79
3.2
N/R
N/R
N/R
12.6
17.4
45.9
1.5
2.5
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