Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/14489
Title: Identifying opportunities to reduce greenhouse gas emissions from agricultural production: A Life Cycle Assessment approach
Contributor(s): Brock, Phillipa (author); Herridge, David  (author)orcid ; Hulugalle, Nilantha (author); Madden, Patrick (author); Schwenke, Graeme  (author)orcid ; Tan, Daniel (author); Quigley, George (author)
Publication Date: 2012
Handle Link: https://hdl.handle.net/1959.11/14489
Abstract: The use of Life Cycle Assessment (LCA) to determine environmental impacts of agricultural production is increasing, especially to determine greenhouse gas emissions. We have undertaken LCAs of wheat production in Central Zone (East) NSW (Figure 1) and cotton production at Narrabri NSW (Figure 2) and found the emissions profiles to be dominated by the production and use of synthetic nitrogenous fertilisers, at 67% of the emissions profile for wheat and 68% for cotton. When we studied the effect of replacing these fertilisers with biologically fixed N, emissions from a legume-based system were found to be 39% of those from a non-legume system (Table 1). Other factors which greatly influence calculated emissions are yield and choice of direct nitrous oxide emissions factor. We are primarily taking a regional approach to LCA and accommodating variability within regions. As it is not possible to build case-study scale LCAs across all farms in NSW, robust regional-scale LCAs provide a basis for advising producers on potential emissions reductions. Also, by showing inter- and intra-regional variability they provide a stronger platform for testing national policies, than coarser-scale studies.
Publication Type: Conference Publication
Conference Name: 5th Joint Australian and New Zealand Soil Science Conference: Soil solutions for diverse landscapes, Hobart, Australia, 2nd - 7th December, 2012
Conference Details: 5th Joint Australian and New Zealand Soil Science Conference: Soil solutions for diverse landscapes, Hobart, Australia, 2nd - 7th December, 2012
Source of Publication: Proceedings of the 5th Joint Australian and New Zealand Soil Science Conference: Soil solutions for diverse landscapes, p. 669-669
Publisher: Australian Society of Soil Science Incorporated
Place of Publication: Warragul, Australia
Field of Research (FOR): 070399 Crop and Pasture Production not elsewhere classified
070302 Agronomy
HERDC Category Description: E3 Extract of Scholarly Conference Publication
Other Links: http://www.soilscienceaustralia.com.au/images/stories/2012%20Hobart%20Soil%20Conference/Soil_Science_Proceedings_Final.pdf
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School of Environmental and Rural Science

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