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Managing Murray-Darling Basin livestock systems in a variable and changing climate: challenges and opportunities


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Crimp, SJ, Stokes, B, Howden, S, Moore, A, Jacobs, B, Brown, P, Ash, A, Kokic, P and Leith, PB 2010 , 'Managing Murray-Darling Basin livestock systems in a variable and changing climate: challenges and opportunities' , The Rangeland Journal, vol. 32, no. 3 , pp. 293-304 , doi: 10.1071/RJ10039.

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The key biophysical impacts associated with projected climate change in the Murray–Darling Basin (MDB)
include: declines in pasture productivity, reduced forage quality, livestock heat stress, greater problems with some pests and
weeds, more frequent droughts, more intense rainfall events, and greater risks of soil degradation. The most arid and least
productive rangelands in theMDBregion may be the most severely impacted by climate change, while the more productive
eastern and northern grazing lands in theMDBmay provide some opportunities for slight increases in production. In order to
continue to thrive in the future, livestock industries need to anticipate these changes, prepare for uncertainty, and develop
adaptation strategies now. While climate change will have direct effects on livestock, the dominant influences on grazing
enterprises in the MDB will be through changes in plant growth and the timing, quantity and quality of forage availability.
Climate change will involve a complex mix of responses to rising atmospheric carbon dioxide levels, rising temperatures,
changes in rainfall and other weather factors, and broader issues related to how people collectively and individually respond
to these changes. Enhancing the ability of individuals to respond to a changing climate will occur through building adaptive
capacity. We have, via secondary data, selected from the Australian Agricultural and Grazing Industries Survey, built a
national composite index of generic adaptive capacity of rural households. This approach expresses adaptive capacity as an
emergent property of the diverse forms of human, social, natural, physical and financial capital from which livelihoods are
derived. Human capital was rated as ‘high’ across the majority of theMDBcompared with the rest of Australia, while social,
physical and financial capital were rated as ‘moderate’ to ‘low’. The resultant measure of adaptive capacity, made up of the
five capitals, was ‘low’ in the northern and central-west regions of the MDB and higher in the central and eastern parts
possibly indicating a greater propensity to adapt to climate change in these regions.

Item Type: Article
Authors/Creators:Crimp, SJ and Stokes, B and Howden, S and Moore, A and Jacobs, B and Brown, P and Ash, A and Kokic, P and Leith, PB
Journal or Publication Title: The Rangeland Journal
ISSN: 1036-9872
DOI / ID Number: 10.1071/RJ10039
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