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Braidwood – Southern Livestock Adaptation 2030


Using producers’ own production and financial data from the Braidwood region, modelling was initially undertaken to assess pasture and livestock production, and enterprise profitability for two prior periods (1970-1999 and 2000-2009) to ensure the models were performing correctly. Modelling was then performed looking ahead to 2030, using 4 different climate scenarios. A self-replacing beef cattle herd for weaner production enterprise, based on a phalaris and sub-clover pasture with average fertility was modelled

Weather predictions & pasture production

Projected weather for the four 2030 scenarios and the impact on pasture production are shown below

Braidwood Weather and Pasture

Key findings

  • Compared to 1970-1999, over the period 2000-2009 rainfall was xxx, average maximum temperature was xxx and pasture production xxx
  • For 2030:
      • The temperature increases are fairly consistent across the four scenarios (+13%) but the rainfall forecast is variable from a 6% to a 25% decrease (average 13% decrease).
      • This leads, on average, to a decrease (5%) in annual pasture production, with a range of +3% to -19%.

Livestock & Financial Impacts, and Adaptations

Using the modeled pasture production figures, the impacts on livestock production and farm profitability were then calculated. Such impacts were initially based on a “business as usual” case i.e. no adaptations (changes to farm management practices) were made.

Then, by discussing these predicted results with farmers, a series of possible adaptations were agreed to and modeled. These adaptations were assessed for their ability (either individually or in combination) to help reduce the impact of climate change on livestock production and farm profitability.

To see the ‘business as usual’ impacts, and then what adaptations were proposed by producers and modeled for the beef enterprises at Braidwooda, please click on: