H123

Location: Curdie Vale

Australian Soil Classification: Mottled Brown CHROMOSOL
General Landscape Description: Upper Terrace / Lower Slope (to Estuary)
Site Description: Plain; Gently Undulating (2%) , South-South West facing
Vegetation: Pasture
Geology: Quaternary Colluvium and Alluvium derived from Neogene Sediments

H123 landscape image

Soil Profile Morphology:

Surface Soil

A1	0-18 cm	Black (10YR2/1); loamy sand; moderate fine subangular blocky structure; rough ped fabric; very weak consistence, moderately moist; pH 7.0; abrupt change to:	H123 Profile
A2	18-30 cm	Yellowish brown (10YR5/4); loamy sand; weak medium subangular blocky structure; rough ped fabric; weak consistence, moist; pH 6.0; clear change to:
Subsoil
B21	30-50 cm	Dark greyish brown (10YR4/2); many coarse faint yellowish red (5YR4/6) and strong brown (7.5YR5/6) mottles; light medium clay, sandy; weak medium/ indeterminate structure; smooth ped fabric; firm consistence, moist; pH 6.0; clear change to:
B22	50-65 cm	Yellowish brown (10YR5/8); many coarse prominent dark yellowish brown (10YR4/4) and dark grey (10YR4/1) mottles; medium heavy clay; weak medium polyhedral/ indeterminate structure; smooth ped fabric; very firm consistence, wet; few fine gravely manganiferous concretions; pH 6.0; gradual change to:
2B21	65-95 cm	Yellowish brown (10YR5/4); many coarse prominent yellowish brown (10YR5/6) mottles; heavy clay; weak medium polyhedral/ indeterminate structure; smooth ped fabric; very firm consistence, wet; very few fine gravely manganiferous concretions; pH 6.0; gradual change to:
2B22	95-108 cm	Yellowish brown (10YR5/6); many coarse distinct grey (7.5YR5/1) and medium red (10YR4/8) mottles; heavy clay; moderate medium parting to fine angular blocky structure; smooth ped fabric; very firm consistence, wet; common fine gravely calcium carbonate nodules; pH 8.8.

Chemical Properties of Upper 10 cm:

Depth (cm)	pH (water)	pH (CaCl₂)	EC dS/m	Exchangeable Cations				Total Carbon %	Total Nitrogen %	Organic Matter %	Available Aluminium mg/kg	Available Potassium (Skene K) mg/kg	Phosphorous (Olsen P) mg/kg	Available Sulphur mg/kg	Phosphorous Buffering Index
				Ca	Mg	K	Na
				meq/100g
0-10	6.2	5.6	0.15	8.6	1.9	1.4	0.52	6.6	0.54	12	<10	540	46	10	110

Physical Properties of Upper 10 cm:

Depth (cm)	Bulk Density kg/L	Volumetric Water				Dispersion				Slaking
		At Saturation pF0 mL/100mL	Near Saturation pF1.0 mL/100mL	Field Capacity pF2.0 mL/100mL	Wilting Point pF4.2 mL/100mL	Dry		Remoulded
						2 Hour	20 Hour	2 Hour	20 Hour
0-10	1.09	55.4	49.3	43.2	18.5	Nil	Nil	Nil	Nil	Partial

Profile Described By: David Rees, October 2007.

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