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The project focused on livestock enterprises in southern Australia, covering:
For each of the enterprises, the following process was followed:
- Using producers own data or regionally specific examples, run models for the livestock enterprise for 1970 to 2000 to establish base data – physical production, profit, environmental.
- Set a limit on ground cover ( in 70% of years a minimum ground cover above 70% is required). This establishes the stocking rate.
- Run the models also for 2000 to 2009 – for a recent reference ponit.
Run exactly the same system except change the daily weather data to scenarios for 2030 (the 4 GCM’s) and increase CO2 to 444. Input costs (fertiliser, fodder etc) and output prices (beef, lamb, wool) remain the same to enable comparisons
Use same ground cover rule to establish the new stocking rates for each GCM.
Look at impact on production / profit and then test adaptations