Simpson Mottles

Coastal ‘Tiger Mottle’ Soils , Simpson, Southwest Victoria, Australia

vic-rmc-simspon-sw66compvic-rme-usestudy-3005comp.jpgDescriptionacidic sandy loam texture, overlying a bleached A2 horizon and clay subsoil.
Ferro-manganiferous gravels
Tiger mottles are deep in the soil profile

Locationflat, coastal plains,
Heytesbury Settlement, Simpson, Western District, southwest Victoria

vic-rmc-chalwater+-1025compValues for these soils:
Food production -soil produces pasture mainly used for dairying, in a high rainfall zone (600-1000 mm/yr)
Research – as a window into the geologic history of the formation of the soil from the regolith below
Aesthetics-  beautiful ‘art’ created by soil formation process

 Challenges for Tiger Mottle Soils:
– Lacking in copper
– Prone to waterlogging due to water perching on the clay subsoil and saturating the A2 and surface soil.
Cattle trampling the wet soil cause pugging/poaching of the surface  which then aggravates the drainage problem and reduces pasture growth and utilization as feed and so milk production
Subsurface hazards for infrastructure placed underground

See more about Tiger Mottles at
Visit another Western Victorian coastal Soil Selfies at the Apollo Bay school garden
See alluvial soil challenges in the grazing Soil Selfies  from Long Flat, South Australia.

Credits : Richard MacEwan, of Bendigo, gives permission for his photos and information to be used under a (cc) license 2015.
Editing and page created by Jeanie Clark, enviroed4all®, Warracknabeal, for use in education under a (cc) licence 2015

return to Soil Selifes location page

page set up 14 November 2015, updated 9 January 2016