Noponen, Martin R.A., Edwards-Jones, Gareth, Haggar, Jeremy P. ORCID: 0000-0002-4682-4879, Soto, Gabriela, Attarzadeh, Nicola and Healey, John R. (2012) Greenhouse gas emissions in coffee grown with differing input levels under conventional and organic management. Agriculture, Ecosystems & Environment, 151. pp. 6-15. ISSN 0167-8809 (doi:https://doi.org/10.1016/j.agee.2012.01.019)

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Abstract

Coffee plays a key role in sustaining millions of livelihoods around the world. Understanding GHG emissions from coffee supply chains is important in evaluating options for climate change mitigation within the sector. We use data from two long-term coffee agroforestry experiments in Costa Rica and Nicaragua to calculate carbon footprints (CF) for coffee and identify emission hotspots within different management systems, levels of inputs and shade types. Management system and input level were the main cause of variation in CFs. Carbon footprints for 1 kg of fresh coffee cherries were between 0.26 and 0.67 kgCO2e for conventional and 0.12 and 0.52 kgCO2e for organic management
systems. The main contributor to GHG emissions for all management systems was the inputs of organic and inorganic nitrogen. Nitrous oxide emissions from pruning inputs contributed between 7% and 42 % of CFs. However, these estimates were strongly influenced by the choice of emission factors.

Item Type:	Article
Additional Information:	[1] This is the Accepted author's version. [2] Citation: Martin R.A. Noponen, Gareth Edwards-Jones, Jeremy P. Haggar, Gabriela Soto, Nicola Attarzadeh, John R. Healey (2012) Greenhouse gas emissions in coffee grown with differing input levels under conventional and organic management. Agriculture, Ecosystems & Environment, 151. pp. 6-15, ISSN 0167-8809 (doi:10.1016/j.agee.2012.01.019). [The definitive version available at: http://www.sciencedirect.com/science/article/pii/S0167880912000345].
Uncontrolled Keywords:	agroforestry systems, carbon footprinting, climate change, coffee, nitrous oxide
Subjects:	S Agriculture > S Agriculture (General) S Agriculture > SB Plant culture
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science > Natural Resources Institute Faculty of Engineering & Science > Natural Resources Institute > Agriculture, Health & Environment Department
Related URLs:	Publisher
Last Modified:	23 Apr 2019 10:41
URI:	http://gala.gre.ac.uk/id/eprint/11340

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