Cited by 185Bioenergy crop production and managementBiofuel production and bioconversionSoil Carbon and Nitrogen Dynamics

Impact of second‐generation biofuel agriculture on greenhouse‐gas emissions in the corn‐growing regions of the US

Davis, Sarah C, Parton, William J, Grosso, Stephen J Del, Keough, Cindy, Marx, Ernest, Adler, Paul R, DeLucia, Evan H·2012·Frontiers in Ecology and the Environment

Abstract

In the US, 95% of biofuel is produced from corn (Zea mays L), an intensively managed annual crop that is also grown for food and animal feed. Using the DAYCENT model, we estimated the effects on ecosystem services of replacing corn ethanol feedstocks with the perennial cellulosic feedstocks switchgrass (Panicum virgatum L) and miscanthus (Miscanthus × giganteus Greef et Deuter). If cellulosic feedstocks were planted on cropland that is currently used for ethanol production in the US, more ethanol (+82%) and grain for food (+4%) could be produced while at the same time reducing nitrogen leaching (−15 to −22%) and greenhouse‐gas (GHG) emissions (−29 to −473%). The GHG reduction was large even after accounting for emissions associated with indirect land‐use change. Conversion from a high‐input annual crop to a low‐input perennial crop for biofuel production can thus transition the central US from a net source to a net sink for GHGs.

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Crossref · 10.1890/110003

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Authors
Davis, S. C., Parton, W. J., Grosso, S. J. D., Keough, C., Marx, E., Adler, P. R., & DeLucia, E. H.
Affiliations
  • University of Illinois Urbana-Champaign (US)
  • Colorado State University (US)
  • Agricultural Research Service (US)
Corresponding author
DeLucia, Evan H
Venue
Frontiers in Ecology and the Environment
Publisher
Wiley
Published
2011-07
Volume
10
Issue
2
Pages
69-74
ISSN
  • 1540-9295 (ISSN-L)
  • 1540-9309
OpenAlex
W2162680969
Cited by
185
References
21
Citations by year
2026: 3 · 2025: 4 · 2024: 4 · 2023: 8 · 2022: 13 · 2021: 9 · 2020: 14 · 2019: 9 · 2018: 11 · 2017: 24 · 2016: 13 · 2015: 16 · 2014: 21 · 2013: 23 · 2012: 10
FWCI
35.14
Type
journal article
Language
en
Open access
closed
Locations
Frontiers in Ecology and the Environment (publishedVersion)
Funders
  • Energy Biosciences Institute
  • University of Illinois at Urbana-Champaign
Topics
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Bioenergy crop production and management
  • Physical Sciences › Engineering › Biomedical Engineering › Biofuel production and bioconversion
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
Keywords
corn ethanol, switchgrass, Miscanthus, cellulosic feedstocks, greenhouse gas emissions, nitrogen leaching, indirect land use change, perennial crops, annual crops, ecosystem services, DayCent model

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