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:|
|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.|