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Greenhouse gas implications of leucaena-based pastures. Can we develop an emissions reduction methodology for the beef industry?

Citation

Tomkins, N and Harrison, M and McSweeney, CS and Denman, S and Charmley, E and Lambrides, CJ and Dalal, R, Greenhouse gas implications of leucaena-based pastures. Can we develop an emissions reduction methodology for the beef industry?, Tropical Grasslands - Forrajes Tropicales, 7, (4) pp. 267-272. ISSN 2346-3775 (2019) [Refereed Article]


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Copyright 2019 The Authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

DOI: doi:10.17138/TGFT(7)267-272

Abstract

The perennial legume leucaena (Leucaena leucocephala) is grown across the subtropics for a variety of purposes including livestock fodder. Livestock in Australia emit a significant proportion of the methane produced by the agriculture sector and there is increasing pressure to decrease emissions from beef cattle production systems. In addition to direct productivity gains for livestock, leucaena has been shown to lower enteric methane production, suggesting an opportunity for emissions mitigation and Commonwealth Emissions Reduction Fund (ERF) methodology development, where leucaena browse is adopted for high value beef production. Determining the proportion of leucaena in the diet may be one of the more challenging aspects in attributing mitigation. Current enteric emission relationships for cattle consuming mixed grass-leucaena diets are based on intensive respiration chamber work. Herd-scale methane flux has also been determined using open path laser methodologies and may be used to validate an on-farm herd-scale methodology for leucaena feeding systems. The methodology should also address increased potential for soil organic carbon storage by leucaena grazing systems, and changes in nitrous oxide production. This paper outlines the background, justification, eligibility requirements and potential gaps in research for an emissions quantification protocol that will lead to the adoption of a leucaena methodology by the Australian beef industry. Development of a methodology would be supported by research conducted in Australia.

Item Details

Item Type:Refereed Article
Keywords:Leucaena, review, greenhouse gas emissions, beef cattle, methane emissions, nitrous oxide emissions, soil nitrogen, crude protein, condensed tannins
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Agriculture, land and farm management
Research Field:Agricultural systems analysis and modelling
Objective Division:Environmental Policy, Climate Change and Natural Hazards
Objective Group:Mitigation of climate change
Objective Field:Management of greenhouse gas emissions from animal production
UTAS Author:Harrison, M (Associate Professor Matthew Harrison)
ID Code:134785
Year Published:2019
Web of Science® Times Cited:2
Deposited By:TIA - Research Institute
Deposited On:2019-09-05
Last Modified:2020-04-30
Downloads:2 View Download Statistics

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