Agency Code: 501 Project Code: REF Site Code: MRA06
Described by: Unknown Date: //

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

Location: MGA94 Zone: 50  398109 mE  6645250 mN Elevation (m): 100  
Location notes: Watheroo National Park, along Watheroo Road. 320 m east of western boundary and 80 m south of road.
Site notes: Landform/topography: Gently undulating sandplain; Drainage: external - nil.

Landform
Landform pattern: sand plain
Relief/modal slope:
Landform element:
Morphological type:
Pattern Relief:  sand plain

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

Geology/parent material
Soil parent material:
Sand derived from breakdown of Cretaceous sandstones.

Species List
Tree: Banksia prionotes, Grevillea eriostachya, Xylomelum angustifolium
Medium Shrubs: Banksia attenuata, Calothamnus sanguineus, Cassytha sp., Grevillea sp., Leucopogon sp., Leptospermum spinescens, Melaleuca cordata, Stirlingia latifolia, Synaphea polymorpha
Ground: Baeckea sp., Drosera sp., Isolepis nodosa, Lyginia sp., Mesomelaena stygia

Current Classification
WA Soil Group: (1999) Yellow deep sand
Australian Soil Classification: (2002) Basic Arenic Yellow-Orthic Tenosol, A thickness thin, A gravels non-gravelly, A texture sandy, B texture sandy, Soil Depth deep
ASC confidence: very high
Map Unit: 222Ag_5a

Other Classifications
World Ref Base: (1998)  Haplic  Arenosol
FAO soil unit:  Cambic Arenosol
Great Soil Group:  Siliceous sand
Northcote PPF: Uc5.11

Soil Profile Description

Horizon | Depth (cm) | Description
A1 | 0-8 | Dark yellowish brown (10YR 4/5 moist) sand; loose consistence; apedal, single grain structure; clear boundary.
B1 | 8-30 | Brownish yellow (10YR 6/6 moist) sand; loose consistence; apedal, single grain structure; gradual boundary.
B21 | 30-60 | Brownish yellow (10YR 6/8 moist) sand; loose consistence; apedal, single grain structure; diffuse boundary.
B22 | 60-110 | Brownish yellow (10YR 6/8 moist) sand; loose consistence; apedal, single grain structure.

Lab Results (501 REF MRA06)

Basic Chemistry

Sample | Horizon | Match | Depth | pH_w | pH_CaCl2 | EC | OC_wb | N_kjel | P_kjel | P_HCO3 | K_HCO3
A | 1 | A | 0-8 | 6 | 5 | 1 | 0.24 | 0.01 | 10 | <2 | 12
B | 2 | A | 8-30 | 5.9 | 5.1 | 1 | 0.12 | 0.01 | 9 | <2 | <10
C | 3 | A | 30-60 | 6.2 | 5.4 | 1 | 0.09 | 0.01 | 8 | <2 | <10
D | 4 | A | 60-110 | 6.2 | 5.6 | 1 | 0.06 | 0.01 | 8 | <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 | 0-8 | <1 | 0.4 | <0.1 | <0.1 | <0.1 | 0.55 (1) | 9 (3) | 8 (1) | 110 (2) | 55 (2)
B | 2 | A | 8-30 | <1 | 0.3 | <0.1 | <0.1 | <0.1 | 0.45 (1) | 11 (3) | 6 (1) | 90 (2) | 22.5 (2)
C | 3 | A | 30-60 | <1 | 0.2 | <0.1 | <0.1 | <0.1 | 0.35 (1) | 14 (3) | 4 (1) | 70 (2) | 35 (2)
D | 4 | A | 60-110 | <1 | 0.2 | <0.1 | <0.1 | 0.1 | 0.4 (1) | 13 (3) | 2 (1) | 80 (2) | 20 (2)

Particle Size Analysis

Sample | Horizon | Match | Depth | s200_2000u | sand | s20_200u | silt | clay
A | 1 | A | 0-8 | 89 | 98 (2) | 10 | 1 | 1
B | 2 | A | 8-30 | 82 | 97 (2) | 16 | 1 | 2
C | 3 | A | 30-60 | 81 | 98 (2) | 18 | 1 | 1
D | 4 | A | 60-110 | 76 | 97 (2) | 22 | 1 | 2