Drought effects on composition and yield for corn stover, mixed grasses, and Miscanthus as bioenergy feedstocks
Abstract
Drought conditions in 2012 were some of the most severe in recent history. The purpose of this study is to examine the impact of drought on quality, quantity, and theoretical ethanol yield (TEY) of three bioenergy feedstocks, corn stover, mixed grasses from Conservation Reserve Program lands, and Miscanthus × giganteus. To assess drought effects on these feedstocks, samples from 2010 (minimal to no drought) and 2012 (severe drought) were compared from multiple locations in the US. In all feedstocks, drought significantly increased extractives and reduced structural sugars and lignin; subsequently, TEYs were reduced 10–15%. Biomass yields were significantly reduced for M. × giganteus and mixed grasses. When reduction in quality and quantity were combined, TEYs decreased 26–59%. Drought negatively affected biomass quality and quantity that resulted in significant TEY reductions. As a result, such fluctuations in biomass quality and yield may have significant consequences for developing lignocellulosic biorefineries.
- Authors:
-
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- USDA-Agricultural Research Service (ARS) National Lab. for Agriculture and the Environment (NLAE), Ames, IA (United States)
- Iowa State Univ., Ames, IA (United States)
- Univ. of Missouri, Columbia, MO (United States)
- Univ. of Georgia, Athens, GA (United States)
- Univ. of Nebraska, Lincoln, NE (United States)
- Univ. of Illinois, Urbana, IL (United States)
- Publication Date:
- Research Org.:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Sustainable Transportation Office. Bioenergy Technologies Office (BETO)
- OSTI Identifier:
- 1242478
- Report Number(s):
- NREL/JA-5100-63019
Journal ID: ISSN 1759-7269
- Grant/Contract Number:
- AC36-08GO28308
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Biofuels
- Additional Journal Information:
- Journal Volume: 5; Journal Issue: 3; Related Information: Biofuels; Journal ID: ISSN 1759-7269
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 09 BIOMASS FUELS; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANAYLYTICAL CHEMISTRY; drought; bioconversion; compositional analysis; compatiple osmotic solutes; theoretical ethanol yield
Citation Formats
Emerson, Rachel, Hoover, Amber, Ray, Allison, Lacey, Jeffrey, Cortez, Marnie, Payne, Courtney, Karlen, Douglas, Birrell, Stuart, Laird, David, Kallenbach, Robert, Egenolf, Josh, Sousek, Matthew, and Voigt, Thomas. Drought effects on composition and yield for corn stover, mixed grasses, and Miscanthus as bioenergy feedstocks. United States: N. p., 2014.
Web. doi:10.1080/17597269.2014.913904.
Emerson, Rachel, Hoover, Amber, Ray, Allison, Lacey, Jeffrey, Cortez, Marnie, Payne, Courtney, Karlen, Douglas, Birrell, Stuart, Laird, David, Kallenbach, Robert, Egenolf, Josh, Sousek, Matthew, & Voigt, Thomas. Drought effects on composition and yield for corn stover, mixed grasses, and Miscanthus as bioenergy feedstocks. United States. https://doi.org/10.1080/17597269.2014.913904
Emerson, Rachel, Hoover, Amber, Ray, Allison, Lacey, Jeffrey, Cortez, Marnie, Payne, Courtney, Karlen, Douglas, Birrell, Stuart, Laird, David, Kallenbach, Robert, Egenolf, Josh, Sousek, Matthew, and Voigt, Thomas. Fri .
"Drought effects on composition and yield for corn stover, mixed grasses, and Miscanthus as bioenergy feedstocks". United States. https://doi.org/10.1080/17597269.2014.913904. https://www.osti.gov/servlets/purl/1242478.
@article{osti_1242478,
title = {Drought effects on composition and yield for corn stover, mixed grasses, and Miscanthus as bioenergy feedstocks},
author = {Emerson, Rachel and Hoover, Amber and Ray, Allison and Lacey, Jeffrey and Cortez, Marnie and Payne, Courtney and Karlen, Douglas and Birrell, Stuart and Laird, David and Kallenbach, Robert and Egenolf, Josh and Sousek, Matthew and Voigt, Thomas},
abstractNote = {Drought conditions in 2012 were some of the most severe in recent history. The purpose of this study is to examine the impact of drought on quality, quantity, and theoretical ethanol yield (TEY) of three bioenergy feedstocks, corn stover, mixed grasses from Conservation Reserve Program lands, and Miscanthus × giganteus. To assess drought effects on these feedstocks, samples from 2010 (minimal to no drought) and 2012 (severe drought) were compared from multiple locations in the US. In all feedstocks, drought significantly increased extractives and reduced structural sugars and lignin; subsequently, TEYs were reduced 10–15%. Biomass yields were significantly reduced for M. × giganteus and mixed grasses. When reduction in quality and quantity were combined, TEYs decreased 26–59%. Drought negatively affected biomass quality and quantity that resulted in significant TEY reductions. As a result, such fluctuations in biomass quality and yield may have significant consequences for developing lignocellulosic biorefineries.},
doi = {10.1080/17597269.2014.913904},
journal = {Biofuels},
number = 3,
volume = 5,
place = {United States},
year = {Fri Jul 04 00:00:00 EDT 2014},
month = {Fri Jul 04 00:00:00 EDT 2014}
}
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