Bouncing Back From Drought, How Resilient are Citrus and Almonds? Mark Skewes Research Scientist – Drought Response Loxton Research Centre.

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Presentation transcript:

Bouncing Back From Drought, How Resilient are Citrus and Almonds? Mark Skewes Research Scientist – Drought Response Loxton Research Centre

Defining Resilience Crop Resilience Survival Productivity Business Resilience Individual Businesses Regional Economy

SURVIVAL Crop Resilience

11 February 2008

23 June 2009

30 June 2010

20 October 2011

PRODUCTIVITY Crop Resilience

Drought Monitoring Program

Yield/Applied Water (NP Almonds)

Yield/ETc (NP Almonds)

Yield/Applied Water (Citrus)

Yield/ETc (Citrus)

Crop Resilience Strategies Canopy reduction Reduce crop water demand Reduce stress Partial cover irrigation Reduce evaporative losses Some issues with recovery Sunscreen products Reduce stress Limited success

INDIVIDUAL BUSINESSES Business Resilience

Almonds High water requirements Cost of production increasing Returns high Cost of replacement water generally justified Few plantings removed

Citrus Moderate water requirements Cost of production increasing Returns variable (varieties, markets) Cost of replacement water often justified Some plantings removed

Wine Grapes Low water requirements Cost of production increasing Returns low (often below cost of production) Cost of replacement water not justified Many plantings removed

REGIONAL ECONOMY Business Resilience

Drought vs. Murray-Darling Basin Plan Drought

Drought vs. Murray-Darling Basin Plan Drought Basin Plan

Conclusions Resilience measured at different scales Survival of permanent plantings is paramount Management techniques are available to maintained production Business survival is about more than just crop response to water deficit Regional economies generally coped with short term drought, but ?