Profile Number 15

Laboratory number:	1006	Profile Description
Site number:	727	A1	0 - 10 cm	Very dark greyish brown (10YR 3/2) light clay; common distinct reddish-brown (<5 mm) mottles; moderate fine (4 mm) subangular blocky structure; rough-ped fabric; hard when dry; pH 5.5; gradual boundary
Classification:	Northcote (1979) - Uf6.12 Stace et al.(1972) - Brown Earth	B₁	10 - 45 cm	Dark brown (10YR 4/3) medium clay; common distinct reddish brown (5 - 15 mm) mottles; moderate medium (8 mm) angular blocky structure; rough-ped fabric; very hard when dry; pH 5.0; diffuse smooth boundary
Location:	Moe 8121, grid ref. 449395 Road cutting 20 km S of Churchill	B₂	45 - 90 cm	Dark yellowish brown (10YR 4/4) medium clay; abundant distinct reddish brown (5 - 15 mm) mottles; weak coarse (25 mm) angular blocky structure; rough-ped fabric; firm when moist; pH 5.0; diffuse smooth boundary
Land system, component:	Livingston, 2	B₃	90 - 150+ cm	Brownish yellow (10YR 6/8) medium clay; abundant prominent pale grey (>15 mm) and abundant distinct reddish brown (5 - 15 mm) mottles; moderate fine (4 mm) angular blocky structure; rough-ped fabric; firm when moist; pH 5.0
Topography:	21% slope facing SE on plateau remnant
Elevation:	340 m
Drainage:	Moderate
Parent material:	Cretaceous mudstone and siltstone
Vegetation:	Pinus radiata plantation with Cassinia aculeata, Olearia lirata and Rubus sp. in the understorey

LABORATORY ANALYSES 1006
Horizon	Sample Depth cm	Lab. texture	Particle size distribution					Atterberg limits				1:5 soil water suspension			Clay mineralogy by x-ray diffraction
Horizon	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 %
Al	0 - 10	SiCL	1	3	24	25	39					4.7	43	0.003
B1	20 - 30	SiC	0	1	24	25	41					4.7	42	0.001
B2	45 - 60	SiC	0	1	23	25	44	59	32	27	14	4.6	33	0.001
B3	90 - 120	C	0	1	12	18	57					4.6	25	0.003

Horizon	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	H
Al	0 - 10	4.5	0.30	20	3.0	8	240	0.022	0.20	0.4	0.7	0.6	0.2	36.9	1	2	2	1	94
B1	20 - 30	2.7	0.21	17	3.2	9	140	0.016	0.21	0.2	0.2	0.3	0.1	26.6	1	1	1	<1	97
B2	45 - 60				3.3			0.012	0.21	0.06	0.07	0.2	0.06	20.7	<1	<1	1	<1	99
B3	90 - 120				5.3			0.009	0.19	0.2	0.09	0.2	0.07	18.0	1	1	1	<1	97

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