GHF13d

Location: Heywood

Australian Soil Classification: Humose (and Ferric), Eutrophic, Red FERROSOL
General Landscape Description: Undulating rises to low hills
Site Description: Lower slope
Land Unit: Drumborg Basalt Hills
Geology: Quaternary basalt

General Land Unit Description:
This land unit consists of the undulating rises of Sugarloaf Hill and Sheaok Rise, north of Heywood. The soils consist of Red Dermosols and occasionally Kurosols on the crests and slopes of the rises. On the lower slopes and plains in between the rises, Ferric Brown Chromosols or Dermosols predominate. There are minor occurrences of Black Vertosols in local depressions. Here a two year old Eucalyptus globulus plantation exists on ex-agricultural land





Soil Profile Morphology

Surface

A11	0-20 cm	Dark brown (7.5YR3/3) clay loam, moderate granular structure (10-20 mm) parting to moderate granular structure (2-5 mm), weak consistence when moist, many medium roots. Clear and smooth transition to:
A12	20-40 cm	Dark brown (7.5YR3/4) clay loam heavy, moderate granular structure (20-50 mm) parting to moderate granular (5-10 mm), weak consistence when wet, many medium ferruginous nodules, many very fine macropores, areal porosity 0.5%, many very fine roots. Gradual and smooth transition to:
Subsoil
B1	40-60 cm	Brown (7.5YR4/4), light clay, moderate granular structure (20-50 mm) parting to moderate granular structure (5-10 mm), weak consistence when wet, common medium ferruginous nodules, many fine macropores, areal porosity 0.7%, few very fine roots. Clear and smooth transition to:
B21	60-100 cm	Red (2.5YR4/6), medium clay, strong polyhedral structure (20-50 mm) parting to strong polyhedral structure (5-10 mm), firm consistence when moist, few medium ferruginous nodules, common fine macropores, areal porosity 0.1%, few very fine roots. Diffuse and smooth transition to:
B22	100-130 cm	Red (2.5YR4/6) medium clay, strong polyhedral structure (20-50 mm) parting to strong polyhedral structure (10-20 mm), firm consistence when moist, very few medium ferruginous nodules, common fine macropores, areal porosity 0.1%, no roots observed. Gradual and smooth transition to:
B23	130-150 cm	Red (2.5YR4/6) with many coarse distinct yellowish brown (10YR5/7) mottles, medium clay, strong polyhedral structure (20-50 mm) parting to strong polyhedral structure (10-20 mm), firm consistence when moderately moist, very few medium ferruginous nodules, common fine macropores, areal porosity 0.03%, no roots observed.
	150-400 cm	Heavily weathered vesicular basalt, reasonably porous, medium (5 mm) live roots seen at 250-400 cm on one pit face only, rocks start a 250 cm and become more abundant and impenetrable at 330 cm.

Horizon	Horizon Depth (cm)	pH (water)	pH (CaCl2)	EC dS/m	Exchangeable Aluminium ppm	Exchangeable Acididty meq/100g	Exchangeable Cations				Coarse Sand (0.2-2.0 mm) %	Fine Sand (0.02-0.2 mm) %	Silt (0.002-0.02 mm) %	Clay (<0.002 mm) %	Field Capacity % w/w	Wilting Point % w/w
							Ca	Mg	K	Na
							meq/100g
A11	0-20	5.2	4.5	0.06	60		4.5	1.6	0.46	0.13	12	39	34	16	41.3	13.8
A12	20-40	5.9	5.1	<0.05	<10	6.1	2.1	1.4	0.35	0.09	11	45	29	14	35.4	7.5
B1	40-60	6.2	5.3	<0.05	<10	7.9	2.8	3.3	0.57	0.32	10	37	24	30	27.0	13.7
B21	60-100	6.0	5.6	0.09	<10	11	3.9	6.2	0.46	0.77	4	15	13	70	44.3	29.7
B22	100-130	5.6	5.2	0.13
B23	130-150	5.5	5.2	0.13	<10		3.1	5.6	0.31	0.83