Comment on "Carbon-negative biofuels from low-input high-diversity grassland biomass"

Tilman et al. (Reports, 8 December 2006, p. 1598) argued that low-input high-diversity grasslands can provide a substantial proportion of global energy needs. We contend that their conclusions are not substantiated by their experimental protocol. The authors understated the management inputs require...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 2007-06, Vol.316 (5831), p.1567; author reply 1567-1567b
Main Authors: Russelle, Michael P, Morey, R Vance, Baker, John M, Porter, Paul M, Jung, Hans-Joachim G
Format: Article
Language:English
Subjects:
Agriculture
Biomass
Carbon - analysis
Climate
Ecosystem
Energy-Generating Resources
Fabaceae - growth & development
Fabaceae - metabolism
Plant Development
Plants - metabolism
Poaceae - growth & development
Poaceae - metabolism
Soil
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Summary:Tilman et al. (Reports, 8 December 2006, p. 1598) argued that low-input high-diversity grasslands can provide a substantial proportion of global energy needs. We contend that their conclusions are not substantiated by their experimental protocol. The authors understated the management inputs required to establish prairies, extrapolated globally from site-specific results, and presented potentially misleading energy accounting.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.1139388