Drought effects on composition and yield for corn stover, mixed grasses, and Miscanthus as bioenergy feedstocks

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dc.contributor.author Karlen, Douglas
dc.contributor.author Emerson, Rachel
dc.contributor.author Hoover, Amber
dc.contributor.author Ray, Allison
dc.contributor.author Birrell, Stuart
dc.contributor.author Lacey, Jeffrey
dc.contributor.author Cortez, Marnie
dc.contributor.author Payne, Courtney
dc.contributor.author Karlen, Douglas
dc.contributor.author Birrell, Stuart
dc.contributor.author Laird, David
dc.contributor.author Kallenbach, Robert
dc.contributor.author Egenolf, Josh
dc.contributor.author Sousek, Matthew
dc.contributor.author Voigt, Thomas
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-02-15T20:06:42.000
dc.date.accessioned 2020-06-29T22:41:19Z
dc.date.available 2020-06-29T22:41:19Z
dc.date.embargo 2015-02-09
dc.date.issued 2014-01-01
dc.description.abstract <p>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 <em>Miscanthus</em> ×<em>giganteus</em>. 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 <em>M.</em> × <em>giganteus</em> 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. Such fluctuations in biomass quality and yield may have significant consequences for developing lignocellulosic biorefineries.</p>
dc.description.comments <p>This article is from <em>Biofuels</em> 5 (2014): 275–291, doi:<a href="http://dx.doi.org/10.1080/17597269.2014.913904" target="_blank">10.1080/17597269.2014.913904</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/619/
dc.identifier.articleid 1902
dc.identifier.contextkey 6630862
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/619
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/1405
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/619/0-2014_Emerson_DroughtEffects_Tables.pdf|||Sat Jan 15 01:17:33 UTC 2022
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/619/2014_Emerson_DroughtEffects.pdf|||Sat Jan 15 01:17:34 UTC 2022
dc.source.uri 10.1080/17597269.2014.913904
dc.subject.disciplines Agricultural Science
dc.subject.disciplines Agriculture
dc.subject.disciplines Agronomy and Crop Sciences
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords Agronomy
dc.supplemental.bitstream 2014_Emerson_DroughtEffects_Tables.pdf
dc.title Drought effects on composition and yield for corn stover, mixed grasses, and Miscanthus as bioenergy feedstocks
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication f36d4ee5-a0dc-46fc-9716-9cc7ad1e2871
relation.isAuthorOfPublication 1fd6ff71-dbea-4ada-9267-f9ff2ce1caba
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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