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Title: Management swing potential for bioenergy crops
Contributor(s): Davis, Sarah C (author); Boddey, Robert M (author); Alves, Bruno J R (author); Cowie, Annette  (author); George, Brendan (author); Ogle, Stephen M (author); Smith, Pete (author); van Noordwijk, Meine (author); van Wijk, Mark T (author)
Publication Date: 2013
Open Access: Yes
DOI: 10.1111/gcbb.12042Open Access Link
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Abstract: Bioenergy crops are often classified (and subsequently regulated) according to species that have been evaluated as environmentally beneficial or detrimental, but in practice, management decisions rather than species per se can determine the overall environmental impact of a bioenergy production system. Here, we review the greenhouse gas balance and 'management swing potential' of seven different bioenergy cropping systems in temperate and tropical regions. Prior land use, harvesting techniques, harvest timing, and fertilization are among the key management considerations that can swing the greenhouse gas balance of bioenergy from positive to negative or the reverse. Although the management swing potential is substantial for many cropping systems, there are some species (e.g., soybean) that have such low bioenergy yield potentials that the environmental impact is unlikely to be reversed by management. High-yielding bioenergy crops (e.g., corn, sugarcane, 'Miscanthus', and fast-growing tree species), however, can be managed for environmental benefits or losses, suggesting that the bioenergy sector would be better informed by incorporating management-based evaluations into classifications of bioenergy feedstocks.
Publication Type: Journal Article
Source of Publication: Global Change Biology: Bioenergy, 5(6), p. 623-638
Publisher: Wiley-Blackwell Publishing Ltd
Place of Publication: United Kingdom
ISSN: 1757-1707
Field of Research (FOR): 070105 Agricultural Systems Analysis and Modelling
070304 Crop and Pasture Biomass and Bioproducts
050301 Carbon Sequestration Science
Socio-Economic Objective (SEO): 960603 Environmental Lifecycle Assessment
960302 Climate Change Mitigation Strategies
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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