GHF07d

Location: Mumbannar

Australian Soil Classification: Basic, Arenic, Bleached-Orthic TENOSOL (fine sandy, very deep profile)
General Landscape Description: Gently undulating plain
Site Description: 6% slope
Land Unit: Strathdownie
Geology: Quaternary aeolian

General Land Unit Description: The majority of this land unit falls south of the Kanawinka fault. This land unit comprises areas with deep sand deposits. The residual landscape is thought to be influenced by the retreat of the Murray Sea which left stranded beach ridges oriented south west–north east. These were subsequently covered by superficial sand sheets in later depositional phases, which formed the landscape seen today.

The major landforms in this land unit are dunes and swales. Podosols and Kurosols or Chromosols are the major soil types found on the dunes and rises. Podosols are soils with a ‘coffee rock’ layer. The Kurosols or Chromosols tend to have a deep sandy topsoil over the clay. The common soil types on the swales are black cracking clay (Vertosols) or Grey Sodosols. Some Ferric Kurosols or Chromosols can also occur on the swales or lower slopes of the dunes.

1.5 year old Eucalyptus globulus plantation on ex-agricultural land.






Soil Profile Morphology

A1	0-15 cm	Very dark grey (10YR3/1); loamy fine sand; single grain structure; loose consistence, moist; many medium roots present; pH 5.2; abrupt and smooth change to:
A21	15-30 cm	Light grey (10YR7/2); fine sand; single grain structure; loose consistence, moist; common medium roots present; pH 4.8; clear and smooth change to:
A22	30-45 cm	Light grey (10YR7/2), with many very coarse light grey (10YR7/1) mottles, fine sand; single grain structure; loose consistence, moist; common medium roots present; pH 5.1; clear and wavy change to:
Subsoil
B21	45-130 cm	Brownish yellow (10YR6/8); fine sand; single grain structure; loose consistence, moist; contains a few very coarse ferruginous (iron cemented sands) nodules; common medium roots present; pH 6.0; clear and smooth change to:
B22	130-150 cm	Yellow (10YR8/6) ; fine sand; single grain structure; loose consistence, moist; pH 6.2; changes to
	150-290 cm	Sands; increasing moisture with depth.