H99

Location: Curdie Vale

Australian Soil Classification: Aeric PODSOL

General Landscape Description: Very Gently Undulating Plain; Sand Plain
Site Description: Plain Crest; Very Gently Undulating (1%)
Vegetation: Pasture
Geology: Neogene Sediments, Quaternary Sediments

H99 landscape image

Soil Profile Morphology:

Surface Soil

A11	0-8 cm	Black (10YR2/1); loamy sand; weak medium polyhedral structure; rough ped fabric; very weakconsistence, dry; pH 5.5; clear change to:	H99 Profile
A12	8-25 cm	Very dark grey (10YR3/1); heavy sand; weak medium polyhedral structure; rough ped fabric; very weak consistence, dry; common coarse gravelly ferruginous nodules; pH 6.0; clear change to:
A21	25-40 cm	Dark grey (10YR4/1); heavy sand; apedal (massive) structure; sandy fabric; very weak consistence, dry; pH 6.0; clear change to:
A22	40-60 cm	Grey (10YR5/1), conspicuously bleached light grey (10YR7/1d); heavy sand; apedal (massive) structure; sandy fabric; very weak consistence, dry; pH 6.0; abrupt change to:
Subsoil
Bhs	60-70 cm	Very dark greyish brown (10YR3/2); sandy loam; apedal (massive) structure; smooth ped fabric; firm to strong consistence, slightly moist; many coarse gravelly ferruginous nodules; continuous pan; pH 5.0; clear change to:
B21	70-85 cm	Pale brown (10YR6/3); common medium distinct yellowish brown (10YR5/6) mottles; coarse sandy clay loam; weak medium polyhedral structure; smooth ped fabric; firm consistence, moist; pH 4.0, changes to:
B22	85-110 cm	Yellowish brown (10YR5/6); many coarse prominent strong brown (7.5YR5/8) mottles; coarse sandy loam; moderate medium polyhedral structure; smooth ped fabric; weak consistence, moist; pH 5.5.

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	6.3	5.9	0.17	7.1	1.5	0.39	0.28	4.2	0.3	7.8	<10	130	30	6	30

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	1.29	44.9	41.0	32.5	16.4	Minimal Aggregation

Profile Described By: David Rees, October 2006.

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