Special Collections at Murdoch University

Special Collections at Murdoch University

Our Special Collections are home to thousands of culturally significant, unique and hard to find items.
These collections offer a rich resource for staff and students and enable the research and teaching goals of the university.

Avon River, East Quairading, Western Australia, Australia - 001

Avon River, East Quairading, Western Australia, Australia - 001. [Photograph] [Special Collections]

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Summary

The Avon River, east of Quairading. The lake systems developing on either side of the river channel. The waterlogged soils are losing the oxygen and soil fauna. Vegetation is almost non-existent, the subsoils are collapsing, (being reconstructed back to a base material). Watershed from the surrounding area cannot make its way into the river channel, but ponds in the sunken areas and moves along the outer edges until it joins a creek and can make its way into the channel. As the subsoils sink (collapse/reconstruct), the stored soluble salts in the soil, are forced upwards and outwards as the solids (soil particles) sink to the bottom of the waterlogged soil (base soils). From the research conducted by Drs Adrian Peck, David Williamson and E. Bettenay of CSIRO from 1965 to 1968, it was found that the quantity of salt stored in the soil from the surface to the base materials, varied from 2,300 tonnes per hectare in the high rainfall zones to 1,500 tonnes per hectare in medium rainfall and 900 tonnes in a light rainfall zone. Hence we can appreciate the amount of salt that is stored in the subsoils.

This image is part of the WISALTS (Whittington Interceptor Sustainable Agriculture Land Treatment Society Incorporated) Collection.

Date: 20 January 1990
Item Type: Special Collections
Collection: WISALTS Collection
Notes: 1 photograph : col. ; 10 x 15 cm
URI: http://researchrepository.murdoch.edu.au/id/eprint/46272
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