NEXUS project: pathways for greenhouse gas emissions mitigation and climate change adaptation of Australian Livestock Industries

Cullen, Brendan R. and Harrison, Matthew T. and Mayberry, Dianne and Cobon, David H. and An-Vo, Duc-Anh ORCID: https://orcid.org/0000-0001-7528-7139 and Christie, Karen M. and Bilotto, Franco and Talukder, Saranika and Perry, Lindsey and Eckard, Richard J. and Davison, Thomas M. (2022) NEXUS project: pathways for greenhouse gas emissions mitigation and climate change adaptation of Australian Livestock Industries. In: 8th International Greenhouse Gas and Animal Agriculture Conference (GGAA 2022), 05 June - 09 June 2022, Orlando, United States.


Abstract

Australian sheep and beef production systems face the dual challenges of reducing net greenhouse gas emissions and adapting to a warmer climate with changing rainfall patterns. The 'Nexus project' is exploring pathways for livestock production systems to meet these challenges using farm systems modelling approaches. The objective of this component of the project was to estimate the GHG emissions intensity (GHG EI) from sheep and beef farms. Seven case study farms in eastern Australia were investigated across a diverse range of agroecological zones from the high rainfall, cool-temperate climate in Tasmania through to the arid, tropical region of northern Queensland. The production systems were one sheep-only farm (Midlands, Tasmania), three beef-only farms (north-west Tasmania, central Queensland and northern Queensland) and three mixed sheep and beef farms (Gippsland Victoria, northern Victoria and central New South Wales). Data on current farm management and production was collected through interviews with farm managers and used to estimate GHG EI using the Australian National Greenhouse Gas Inventory Report methodology. For sheep production, emissions were partitioned between meat and wool using the protein allocation method. Results were expressed as tonnes carbon dioxide equivalents (CO2 e) per tonne of production sold (liveweight for beef and sheep meat, and greasy wool). GHG EI of beef production ranged from 9.8-15 t CO 2 e/t liveweight sold, with the lowest value on the farm in northwest Tasmania and the highest value in the central Queensland. For sheep production, the GHG EI of meat production ranged from 5.3-8.7 t CO2 e/t liveweight sold and wool production from 19.7-31.0 t CO2 e/t greasy wool sold. In general sheep and beef production GHG EI's were lower where the reproduction rates were higher. Further research will investigate options to reduce both total GHG and GHG EI using combinations of mitigation and sequestration opportunities on-farm.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: No
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: Current - Institute for Life Sciences and the Environment - Centre for Applied Climate Sciences (1 Aug 2018 -)
Faculty/School / Institute/Centre: Current - Institute for Life Sciences and the Environment - Centre for Applied Climate Sciences (1 Aug 2018 -)
Date Deposited: 21 Jun 2022 23:59
Last Modified: 21 Jun 2022 23:59
Uncontrolled Keywords: greenhouse gas emissions, livestock, climate change, cattle, beef, dairy, America, Australia, trees, pastures, red meat, meat consumption, net zero, carbon neutral, soil carbon, carbon capture, extreme weather event, adaptation, mitigation, methane
Fields of Research (2008): 05 Environmental Sciences > 0599 Other Environmental Sciences > 059999 Environmental Sciences not elsewhere classified
07 Agricultural and Veterinary Sciences > 0702 Animal Production > 070203 Animal Management
Fields of Research (2020): 41 ENVIRONMENTAL SCIENCES > 4101 Climate change impacts and adaptation > 410199 Climate change impacts and adaptation not elsewhere classified
30 AGRICULTURAL, VETERINARY AND FOOD SCIENCES > 3003 Animal production > 300302 Animal management
Socio-Economic Objectives (2008): D Environment > 96 Environment > 9603 Climate and Climate Change > 960301 Climate Change Adaptation Measures
B Economic Development > 83 Animal Production and Animal Primary Products > 8305 Primary Animal Products > 830503 Live Animals
Socio-Economic Objectives (2020): 18 ENVIRONMENTAL MANAGEMENT > 1899 Other environmental management > 189999 Other environmental management not elsewhere classified
10 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 1001 Environmentally sustainable animal production > 100199 Environmentally sustainable animal production not elsewhere classified
URI: http://eprints.usq.edu.au/id/eprint/46922

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