Agency Code: 501 Project Code: REF Site Code: DEN07
Described by: Unknown Date: 01/01/1938

Observation type: Unknown Category: 
Lab Analyses: Detailed chemical and physical analyses.

Location: MGA94 Zone: 50  526920 mE  6135107 mN Elevation (m): 70  
Location notes: 7 km north-west of Denmar; CALM co-ordinates JV 137. Timber Reserve 180 (Conservation and Land Management) In Loc. 513, 210 m north of Scotsdale Road and 20 m from eastern boundary.
Site notes: From Hosking & Burvill (1938). Landform/topography: Steep slope. [lab data suggests sandy duplex]

Landform
Landform pattern:	Slope:  20 %
Relief/modal slope:
Landform element:
Morphological type:
Pattern Relief: 

Surface and Hydrological Properties
Rock outcrop:   
Surface coarse fragments: 
Physical properties: moderate profile permeability

Geology/parent material
Soil parent material:
Precambrian gneiss - intermediate to basic.

Vegetation
Notes: Karri forest; dense understorey; heavy leaf litter.

Species List
Tree: Allocasuarina decussata, Eucalyptus diversicolor
Tall Shrubs: Acacia pentadenia, Boronia crenulata, Chorizema ilicifolium, Clematis microphylla, Hovea elliptica, Leucopogon verticillatus, Trymalium floribundum

Current Classification
WA Soil Group: (1999) Yellow/brown shallow loamy duplex
Australian Soil Classification: (2002) Mottled-Sodic Eutrophic Brown Dermosol, A thickness very thick, A gravels non-gravelly, A texture sandy, B texture sandy, Soil Depth very deep
ASC confidence: very high
Soil Series: Wakundup
Map Unit: 254WhKYb

Other Classifications
World Ref Base: (1998)  Haplic  Lixisol
FAO soil unit:  Orthic Luvisol
Great Soil Group:  Yellow earth
Northcote PPF: Gn3.11

Soil Profile Description

Horizon | Depth (cm) | Description
A1 | 0-2 | Dark reddish brown (5YR 3/3 moist) sandy loam; weak consistence; earthy fabric; pedal, weak, granular structure; 13% gravel sized coarse fragments; water repellent; notes: porous; clear boundary.
B1 | 2-10 | Strong brown (7.5YR 4/5 moist) sandy loam; weak consistence; earthy fabric; pedal, weak, granular structure; 16% gravel sized coarse fragments; notes: porous; clear boundary.
B21 | 10-22 | Yellowish red (5YR 4/6 moist) clay loam; firm consistence; earthy fabric; pedal, weak, granular structure; 18% gravel sized coarse fragments; notes: porous; gradual boundary.
B22 | 22-40 | Yellowish red (5YR 4/6 moist) clay loam; firm consistence; earthy fabric; apedal, massive structure; 6% gravel sized coarse fragments; abrupt boundary.
B3 | 40-65 | Strong brown (7.5YR 5/8 moist) medium clay; few faint red (10R 4/5 moist)  mottles; firm consistence; pedal, moderate, 5-10 mm, polyhedral structure; common cutans; 6% gravel sized coarse fragments; diffuse boundary.
| 65-85 | Yellowish brown (10YR 5/8 moist) medium clay; many red (2.5YR 4/6 moist)  mottles; firm consistence; pedal, strong, 10-20 mm, polyhedral structure; common cutans; 5% rocky gravel sized coarse fragments & quartz and felspar; gradual boundary.
| 85-100 | Yellowish brown (10YR 5/8 moist) medium clay; very firm consistence; pedal, strong, 10-20 mm, polyhedral structure; medium other fragments; 5% rocky gravel sized coarse fragments.

Lab Results (501 REF DEN07)

Basic Chemistry

Sample | Horizon | Match | Depth | pH_w | pH_CaCl2 | EC | OC_wb | N_kjel | P_kjel | P_HCO3 | K_HCO3 | Al_CIDI | Al_Ox | Fe_CIDI | Fe_Ox
A | 1 | A | 0-2 | 6.5 | 5.9 | 17 | 5.8 | 0.28 | 90 | 4 | 200 | | | |
B | 2 | A | 2-10 | 6.8 | 6.1 | 9 | 2.3 | 0.14 | 60 | 2 | 190 | 0.75 | 1.2 | 2.55 | 0.26
C | 3 | A | 10-22 | 6.8 | 6.1 | 6 | 1.4 | 0.09 | 50 | <2 | 200 | | | |
D | 4 | A | 22-40 | 6 | 5.1 | 9 | | | | <2 | 200 | 0.85 | 0.77 | 3.6 | 0.13
E | 5 | A | 40-65 | 5.2 | 4.5 | 10 | | | | <2 | 98 | | | |
F | 6 | A | 65-85 | 5.2 | 4.9 | 12 | | | | <2 | 96 | | | |
G | 7 | A | 85-100 | 5.1 | 4.9 | 10 | | | | <2 | 72 | | | |

Exchangeable Cations

Sample | Horizon | Match | Depth | CEC | Exch_Ca | Exch_Na | Exch_K | Exch_Mg | Sum_Exch | ESP | CaMgR_Exch | Exch_cats% | Base_stat
A | 1 | A | 0-2 | 20 | 16 | 0.5 | 0.6 | 4.1 | 21.2 (1) | 2 (3) | 3.9 (1) | 106 (2) | 302.86 (2)
B | 2 | A | 2-10 | 11 | 8.4 | 0.2 | 0.4 | 2 | 11 (1) | 2 (3) | 4.2 (1) | 100 (2) | 110 (2)
D | 4 | A | 22-40 | 7 | 1.6 | 0.7 | 0.5 | 1.6 | 4.4 (1) | 16 (3) | 1 (1) | 63 (2) | 16.3 (2)

Particle Size Analysis

Sample | Horizon | Match | Depth | s200_2000u | sand | s20_200u | silt | clay
A | 1 | A | 0-2 | 54 | 85 (2) | 31 | 8 | 7
B | 2 | A | 2-10 | 46 | 79 (2) | 33 | 11 | 10
D | 4 | A | 22-40 | 40 | 62 (2) | 22 | 11 | 27