Agency Code: 501 Project Code: REF Site Code: MR03
Described by: R Smith Date: 01/01/1951

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

Location: MGA94 Zone: 50  331389 mE  6251847 mN Elevation (m): 90  
Location notes: Treeton Block (State Forest); 14 km north-east of Margaret River. Margaret Sheet (CALM) co-ordinates FZ14. 100 m south of junction of Ferguson and Stan Roads. 10 m east of Ferguson Road.
Site notes: Landform/topography: Moderate slope of minor valley.

Landform
Landform pattern:	Slope:  10 %
Relief/modal slope:
Landform element:
Morphological type:
Pattern Relief: 

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

Geology/parent material
Soil parent material:
Weathered Cretaceous sediments.

Vegetation
Notes: Jarrah-marri forest.

Species List
Tree: Banksia grandis, Eucalyptus calophylla, Eucalyptus marginata, Eucalyptus megacarpa
Medium Shrubs: Agonis parviceps, Burtonia conferta, Dasypogon hookeri, Hakea amplexicaulis
Low Shrubs: Acacia pulchella, Acacia sp., Boronia gracilipes, Comesperma confertum, Gompholobium polymorphum, Hibbertia hypericoides, Pimelea suaveolens
Ground: Andersonia caerulea, Leptocarpus sp., Loxocarya cinerea, Lyginia sp., Stylidium sp.

Current Classification
WA Soil Group: (1999) Acid yellow sandy earth
Australian Soil Classification: (2002) Basic Regolithic Brown-Orthic Tenosol, A thickness medium, A gravels non-gravelly, A texture sandy, B texture loamy, Soil Depth deep
ASC confidence: very high
Map Unit: 214ThTRvw

Other Classifications
World Ref Base: (1998)  Dystric  Regosol
FAO soil unit:  Xanthic Ferralsol
Great Soil Group:  Siliceous sand
Northcote PPF: Uc5.11

Soil Profile Description

Horizon | Depth (cm) | Description
A1 | 0-5 | Brown (10YR 5/3 moist) loamy sand; very weak dry consistence; smooth-ped fabric; pedal, weak, granular structure; clear boundary.
A2 | 5-18 | Light yellowish brown (10YR 6/4 moist) loamy coarse sand; weak dry consistence; smooth-ped fabric; apedal, massive structure; notes: hard-setting; gradual boundary.
B1 | 18-40 | Light yellowish brown (10YR 6/4 moist) coarse sandy loam; weak dry consistence; smooth-ped fabric; apedal, massive structure; 2% ferruginous coarse fragments; gradual boundary.
B21 | 40-80 | Very pale brown (10YR 7/4 moist) coarse sandy loam; weak dry consistence; smooth-ped fabric; apedal, massive structure; 4% quartz fine gravel sized coarse fragments; clear boundary.
B22 | 80-100 | Very pale brown (10YR 7/4 moist) coarse sandy loam; few faint yellow (10YR 7/5 moist)  mottles; firm dry consistence; smooth-ped fabric; apedal,; 5% quartz fine gravel sized coarse fragments.

Lab Results (501 REF MR03)

Basic Chemistry

Sample | Horizon | Match | Depth | pH_w | pH_CaCl2 | EC | OC_wb | N_kjel | P_kjel | P_HCO3 | K_HCO3
A | 1 | A | 0-5 | 5.3 | 4.7 | 2 | 0.83 | 0.03 | 29 | <2 | <10
B | 2 | A | 5-18 | 5.4 | 4.7 | 2 | 0.5 | 0.02 | 24 | <2 | <10
C | 3 | A | 18-40 | 5.5 | 4.7 | 2 | | | | <2 | <10
D | 4 | A | 40-80 | 5.2 | 4.7 | 2 | | | | <2 | <10
E | 5 | A | 80-100 | 5.2 | 4.7 | 2 | | | | <2 | 10

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 | 0-5 | 2 | 0.3 | <0.1 | <0.1 | 0.2 | 0.6 (1) | 8 (3) | 1.5 (1) | 30 (2) | 10 (2)
C | 3 | A | 18-40 | 1 | 0.1 | <0.1 | <0.1 | 0.3 | 0.5 (1) | 10 (3) | 0.33 (1) | 50 (2) | 5.56 (2)
E | 5 | A | 80-100 | <1 | <0.1 | <0.1 | <0.1 | 0.3 | 0.45 (1) | 11 (3) | 0.17 (1) | 90 (2) | 3.75 (2)

Particle Size Analysis

Sample | Horizon | Match | Depth | s200_2000u | sand | s20_200u | silt | clay
A | 1 | A | 0-5 | 73 | 92 (2) | 19 | 2 | 6
C | 3 | A | 18-40 | 70 | 89 (2) | 19 | 2 | 9
E | 5 | A | 80-100 | 75 | 87 (2) | 12 | 1 | 12