Tea Tree (Symbol: Tt)

Geology
Holocene and Pleistocene alluvium.

Landform
Alluvial plain, comprising flood plains, minor alluvial fans and stream channels.


Creek flats south of Buchan. This photo was taken about 8.5 Km south of Buchan looking east towards the
Buchan-Bruthen Road

Soils
Component 1 (Soils on the flood plains)
The Holocene and Pleistocene alluvium occur in the river and creek flood plains and are subject to periodic waterlogging. The soils of the Buchan river flats appear to be gradational soils with slightly acidic very dark greyish brown clay loam surface soils passing to brown medium clays in the subsoil.

South of Buchan, the soils appear to be texture contrast soils with very dark grey acidic fine sandy loams to clay loams overlying a bleached similarly textured subsurface horizon. Mottled yellowish brown clays occur in the subsoil. Because of their limited extent, all of the soils are grouped under the Tea Tree map unit.

Components 2 and 3
No information is given for the alluvial fans and stream channels.

Native vegetation
The original vegetation of the Buchan Valley was riparian forest. The drainage lines and creek flats south of Buchan carried a range of ecological vegetation types, mostly riparian scrub and clay heathland.

Land use
The Buchan Valley is entirely cleared but there are remnants of the original vegetation around Kanni and Racecourse Roads.