Agency Code: 501 Project Code: REF Site Code: WP04
Described by: H M (Max) Churchwood Date: 01/01/1988

Observation type: soil pit Category: full description
Lab Analyses: Limited chemical and physical analyses.

Location: MGA94 Zone: 50  470190 mE  6147297 mN Map sheet:  Deep River 100K
Location notes: 20 km north of Walpole. 720 m east of junction of Beardmore and Doug Roads (Ref. Tree 10 101 2). 10 m north of Beardmore Road.
Site notes: From Churchward et al. (1988), profile #68. (CSIRO P 0725) Landform/topography: Moderate slope in flanks of minor valley.

Landform
Landform pattern: hills	Slope:  5 %
Relief/modal slope:
Landform element: hillslope
Morphological type: mid-slope
Pattern Relief:  hills

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

Geology/parent material
Soil parent material: detrital sedimentary rock (unidentified)
Weathered Precambrian granitic rocks.

Vegetation
Notes: Karri-marri tall forest.

Species List
Tree: Allocasuarina decussata, Eucalyptus calophylla, Eucalyptus diversicolor
Tall Shrubs: Trymalium floribundum
Medium Shrubs: Acacia pentadenia, Allocasuarina decussata, Trymalium floribundum
Low Shrubs: Boronia crenulata, Chorilaena quercifolia, Leucopogon verticillatus, Lomandra sp., Opercularia hispidula, Pteridium esculentum, Tetrarrhena laevis, Thomasia triloba

Current Classification
WA Soil Group: (1999) Duplex sandy gravel
Australian Soil Classification: (2002) Ferric Mesotrophic Brown Chromosol, A thickness very thick, A gravels non-gravelly, A texture loamy, B texture clayey, Soil Depth deep
ASC confidence: very high
Map Unit: 254WhKYb

Other Classifications
World Ref Base: (1998)  Ferric  Acrisol
FAO soil unit:  Xanthic Ferralsol
Northcote PPF: Dy4.62

Soil Profile Description

Horizon	Depth (cm)	Description	
A1	0-5	Brown (7.5YR 5/4 moist) loamy sand; apedal, single grain structure; 30% gravel sized coarse fragments.	
A1	5-10	Brown (7.5YR 5/4 moist) sandy loam; apedal, single grain structure; 30% gravel sized coarse fragments.	
A21	10-20	Strong brown (7.5YR 5/6 moist) sandy loam; apedal, single grain structure; 40% gravel sized coarse fragments.	
A22	30-40	Strong brown (7.5YR 5/8 moist) sandy loam; apedal, single grain structure; 60% gravel sized coarse fragments.	
A22	50-60	Strong brown (7.5YR 5/8 moist) sandy loam; apedal, single grain structure; 60% gravel sized coarse fragments.	
B1	70-80	Strong brown (7.5YR 5/8 moist) sandy light clay; apedal, massive structure; 60% gravel sized coarse fragments.	
B1	80-90	Strong brown (7.5YR 5/8 moist) sandy light clay; apedal, massive structure; 60% gravel sized coarse fragments.	
B1	90-100	Strong brown (7.5YR 5/8 moist) sandy light clay; apedal, massive structure; 60% gravel sized coarse fragments.	

Lab Results (501 REF WP04)

Basic Chemistry

Sample	Horizon	Match	Depth	pH_w	EC	Cl_sol	CaCO3_tot	OC_wb	
A	1	A	0-5	6.3	3	10	3.1	3.1	
B	2	A	5-10	6.3	4	10			
D	4	A	30-40	6.7	4	10			
E	5	A	50-60	6.4	3	10			
F	6	A	70-80	6.8	2	10			
H	8	A	90-100	6.5	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	9	1.72	0.2	0.2	1.2	3.32 (1)	6 (3)	1.43 (1)	37 (2)	66.4 (2)	
E	5	A	50-60	3	0.4	0.2	<0.1	0.3	0.95 (1)	21 (3)	1.33 (1)	32 (2)	7.31 (2)	
H	8	A	90-100	2	0.3	0.1	0.1	0.2	0.7 (1)	14 (3)	1.5 (1)	35 (2)	2.33 (2)	

Particle Size Analysis

Sample	Horizon	Match	Depth	s200_2000u	sand	s20_200u	silt	clay	
A	1	A	0-5	38	88 (2)	50	7	5	
E	5	A	50-60	44	80 (2)	36	7	13	
H	8	A	90-100	41	60 (2)	19	10	30