Maraseni, T. N. and Mushtaq, S. and Reardon-Smith, K. (2012) Climate change, water security and the need for integrated policy development: the case of on-farm infrastructure investment in the Australian irrigation sector. Environmental Research Letters, 7 (3). pp. 1-12.
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The Australian Government is currently addressing the challenge of increasing water scarcity through significant on-farm infrastructure investment to facilitate the adoption of new water-efficient pressurized irrigation systems. However, it is highly likely that conversion to these systems will increase on-farm energy consumption and greenhouse gas (GHG) emissions, suggesting potential conflicts in terms of mitigation and adaptation policies. This study explored the trade-offs associated with the adoption of more water efficient but energy-intensive irrigation technologies by developing an integrated assessment framework. Integrated analysis of five case studies revealed trade-offs between water security and environmental security when conversion to pressurized irrigation systems was evaluated in terms of fuel and energy-related emissions, except in cases where older hand-shift sprinkler irrigation systems were replaced. These results suggest that priority should be given, in implementing on-farm infrastructure investment policy, to replacing inefficient and energy-intensive sprinkler irrigation systems such as hand-shift and roll-line. The results indicated that associated changes in the use of agricultural machinery and agrochemicals may also be important. The findings of this study support the use of an integrated approach to avoid possible conflicts in designing national climate change mitigation and adaptation policies, both of which are being developed in Australia.
|Item Type:||Article (Commonwealth Reporting Category C)|
|Additional Information:||This in an open access title.|
|Uncontrolled Keywords:||water security; greenhouse gas emissions; irrigation technologies; integrated trade-offs framework; Australia|
|Depositing User:||Dr Shahbaz Mushtaq|
|Date Deposited:||09 Sep 2012 13:02|
|Last Modified:||03 Jul 2013 01:16|
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