Drought effects on composition and yield for corn stover, mixed grasses, and <i>Miscanthus</i> as bioenergy feedstocks [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 631.5 Cultivation and harvesting
• Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Energy Efficiency and Renewable Energy ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2014
• Mô tả vật lý: Size: p. 275-291 : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 263806
• Chủ đề: 1. 09 biomass fuels; 2. 37 inorganic, organic, physical, and anaylytical chemistry; 3. Bioconversion; 4. Compositional analysis; 5. Drought

Tóm tắt

 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 <
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 . 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 <
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  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.