Profile Number 22

Laboratory number:	0972	Profile Description
Site number:	490	0₂	7 - 0 cm	Loam; moderate crumb structure; rough-ped fabric; abundant roots; pH 4.0; abrupt wavy boundary
Classification:	Northcote (1979) - Um5.52 Stace et al. (1972) - Alluvial Soil	A₁₁	0 - 4 cm	Dark brown (10YR 3/3) fine sandy clay loam; apedal; earthy fabric; slightly hard when dry; abundant roots; pH 4.0; abrupt wavy boundary
Location:	Omeo 8423, grid ref. 633778 3 km N of The Walnuts	A_l2	4 - 37 cm	Very dark greyish brown (10YR 3/2) fine sandy clay loam; apedal; earthy fabric; slightly hard when dry; common roots; pH 7.0; clear wavy boundary
Land system, component:	Walnut, 1	C₁	37 - 80 cm	Dark brown to brown (10YR 4/3) sandy loam; apedal; soft when dry; unevenly distributed organic staining; common roots; pH 8.0; clear wavy boundary
Topography:	Alluvial terrace, 0% slope	C₂	80 - 90 cm	Dark brown to brown (10YR 4/3) gravelly sand; apedal; sandy fabric; soft when dry; 60% fine gravel (3 mm); pH 8.5; wavy boundary
Elevation:	320 m	C₃	90 - 100+ cm	Very dark greyish brown (10YR 3/2) silty clay loam; common distinct yellowish brown (5 - 15 mm) mottles; apedal; earthy fabric; soft when dry; pH 8.0
Drainage:	Good
Parent material:	Holocene fine-textured alluvium
Vegetation:	Cleared; grassland, mostly with introduced species and occasional Eucalyptus melliodora and E. viminalis. (Original vegetation probably an open forest III)

LABORATORY ANALYSES 972
Sample Depth cm	Lab. texture	Particle size distribution					Atterberg limits				1:5 soil water suspension			Clay mineralogy by x-ray diffraction
Sample Depth cm	Lab. texture	Gravel %	Coarse sand % f.e.	fine sand % f.e.	Silt % f.e.	Clay % f.e.	liquid limit %	plastic limit %	plasticity index %	linear shrinkage %	pH	EC 25°C uS/cm	Cl- %	Depth cm	Composition %
7 - 0 0 - 4 10 - 20 30 - 60 80 - 90	L L L LS	0 2 3 0 10	5 5 6 15	26 52 51 69	16 21 21 5	17 21 18 8	44 19	32 14	12 5	8.4 1.6	5.4 6.4 7.3 8.0	380 120 78 56	0.014 0.011 0.006 0.004

Sample Depth cm	Org. C %	Total N %	1.3C N	Free Fe₂O₃ %	Available		HCl extract		Exchangeable cations
					P ppm	K ppm	P %	K %	Ca	Mg	K	Na	CEC	Ca % of CEC	Mg	K	Na	H
					P ppm	K ppm	P %	K %	Milliequivalents/100g				CEC	Ca % of CEC	Mg	K	Na
7 - 0	22.0	1.74	16	0.9	155	800	0.073	0.44	14.7	4.7	2.1	0.1	60.4	24	8	3	<1	65
0 - 4	2.7	0.23	15	1.5	140	640	0.066	0.58	9.4	2.4	1.6	0.09	21.5	44	11	7	<1	38
10 - 20	1.0	0.10	13	1.5	115	780	0.060	0.64	7.8	2.3	1.0	0.08	15.8	49	15	6	1	29
30 - 60				1.4			0.042	0.42	3.9	1.0	1.0	0.05	7.3	53	14	14	1	18
80 - 90

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