1. Geographical Processes Relevant to Water Management
© Karen Devine 2010

2. The Water Cycle
The water cycle is the key geographical mechanism for carrying water through the 4 spheres.
The water cycle processes water in the states of liquid, solid and gas.
© Karen Devine 2010

4. The Water Cycle It moves through the processes of: precipitation
infiltration
percolation
run off
evaporation
condensation.
© Karen Devine 2010

5. The Water Cycle
Australia’s water supply can be affected by run-off which includes:
sewerage
pesticides
herbicides
fertilisers
waste water
other chemicals.
© Karen Devine 2010

6. Artesian Basins
Artesian basins are also a source of freshwater for a quarter of Australia.
Australia’s Great Artesian Basin is the largest artesian basin in the world.
© Karen Devine 2010

7. Artesian Basins
Artesian basins form when permeable rock is found between layers of impermeable rock.
© Karen Devine 2010

8. Artesian Basins
The porous or permeable rock is capable of holding large amounts of ground water.
These rocks are known as aquifers.
© Karen Devine 2010

9. Artesian Basins
Bores can be sunk to tap into the water in the aquifers.
© Karen Devine 2010

10. Artesian Basins
Yet, many see that this water is inefficiently utilised and much is lost through evaporation and infiltration.
© Karen Devine 2010

11. Question Time? Watch Film on the Great Artesian Basin.
Explain how artesian water is being inefficiently used.
© Karen Devine 2010