Yields of <i><scp>M</scp>iscanthus</i> × <i>giganteus</i> and <i><scp>P</scp>anicum virgatum</i> decline with stand age in the Midwestern <scp>USA</scp>

GCB Bioenergy - Tập 6 Số 1 - Trang 1-13 - 2014
Rebecca A. Arundale1,2, Frank G. Dohleman1, Emily A. Heaton3, Justin M. McGrath3, Thomas Voigt3,2, Stephen P. Long1,2
1Department of Plant Biology University of Illinois at Urbana-Champaign Urbana IA USA
2Energy Biosciences Institute University of Illinois at Urbana-Champaign Urbana IA USA
3Department of Crop Sciences University of Illinois at Urbana-Champaign Urbana IA USA

Tóm tắt

AbstractFor the C4 perennial grasses, Miscanthus × giganteus and Panicum virgatum (switchgrass) to be successful for bioenergy production they must maintain high yields over the long term. Previous studies under the less conducive climate for productivity in N.W. Europe found little or no yield decline in M. × giganteus in the long term. This study provides the first analysis of whether yield decline occurs in M. × giganteus under United States. Midwest conditions in side‐by‐side trials with P. virgatum over 8–10 years at seven locations across Illinois. The effect of stand age was determined by using a linear regression model that included effects of weather. Miscanthus × giganteus produced yields more than twice that of P. virgatum averaging 23.4 ± 1.2 Mg ha−1 yr−1 and 10.0 ± 0.9 Mg ha−1 yr−1, respectively, averaged over 8–10 years. Relationships of yield with precipitation and growing degree days were established and used to estimate yields corrected for the stochastic effects of weather. Across all locations and in both species, yield initially increased until it reached a maximum during the fifth growing season and then declined to a stable, but lower level in the eighth. This pattern was more pronounced in M. × giganteus. The mean yields observed over this longer term period of 8–10 years were lower than the yields of the first 5 years. However, this decline was proportionately greater in M. × giganteus than in P. virgatum, suggesting a stronger effect of stand age on M. × giganteus. Based on the average yield over the period of this study, meeting the United States Renewable Fuel Standard mandate of 60 billion liters of cellulosic ethanol by 2022, would require 6.8 Mha of M. × giganteus or 15.8 Mha of P. virgatum. These appear manageable numbers for the United States, given the 16.0 Mha in the farmland Conservation Reserve Program in addition to another 13.0 Mha abandoned from agriculture in the last decade.

Từ khóa


Tài liệu tham khảo

10.1016/j.jviromet.2010.07.008

Agindotan BO, 2010, Potential viral threats to Miscanthus x giganteus and switchgrass production for bioenergy in the United States, Phytopathology, 100, S3

AngelJ(2007)Illinois Climate Network Water and Atmospheric Resources Monitoring Program. Available at:http://www.sws.uiuc.edu/warm/datalist.asp(accessed 7 August 2012).

10.1016/j.biombioe.2008.10.005

10.1111/j.1365-3040.1995.tb00565.x

10.1016/S0961-9534(97)00016-0

Bullard M, 2001, Miscanthus for Energy and Fibre, 155

10.2135/cropsci2003.2226

Chen YH, 1993, Studies on anatomy and morphology in Saccharum‐Miscanthus nobilized hybrids.1. Transmission of tillering, ratooning, adaptation and disease resistance from Miscanthus spp, Journal of the Agricultural Association of China, 164, 31

10.1016/j.indcrop.2004.01.004

10.1016/j.indcrop.2008.02.009

10.1093/jexbot/48.313.1573

10.2134/agronj2001.9351013x

10.1111/j.1365-2486.2007.01438.x

10.1007/s10021-009-9306-9

10.1890/110003

DEFRA(2007)Planting and Growing Miscanthus: Best Practice Guidelines. [Online]Department of Environment Food and Rural Affairs (Producer). Available at:http://www.naturalengland.org.uk/Images/miscanthus-guide_tcm6-4263.pdf(accessed 7 August 2012).

Dohleman FG, 2009, Seasonal dynamics of productivity and photosynthesis of three biofuel feedstocks: field comparisons of Miscanthus x giganteus, Panicum virgatum and Zea mays

10.1104/pp.109.139162

10.1111/j.1757-1707.2011.01153.x

EPA, 2012, Regulation of fuels and fuel additives: 2012 renewable fuel standards, Federal Register, 77

10.1111/j.1365-3040.2005.01460.x

10.1016/j.biombioe.2005.10.006

10.1016/j.biombioe.2005.10.008

Fuentes RG, 2002, Trends in new Crops and new Uses, 276

10.1111/j.1744-7348.2011.00526.x

Greef JM, 1993, Syntaxonomy of Miscanthus x giganteus Greef et Deu, Angewandte Botanik, 67, 87

10.1016/j.biombioe.2004.09.002

10.1111/j.1757-1707.2009.01007.x

10.1023/B:MITI.0000038848.94134.be

10.1016/j.biombioe.2003.10.005

10.1111/j.1365-2486.2008.01662.x

10.1111/j.1757-1707.2009.01022.x

10.1175/1520-0477(2002)083<1149:AROTDI>2.3.CO;2

10.2307/4117709

10.1890/03-5162

10.2135/cropsci1995.0011183X003500010023x

10.1016/S0961-9534(03)00030-8

10.1016/S0961-9534(00)00032-5

10.1111/j.1601-5223.1993.00297.x

10.1016/j.biombioe.2004.05.006

10.1111/j.1757-1707.2009.01020.x

10.1094/PDIS-05-10-0335

10.1016/j.agrformet.2008.03.010

10.1111/j.1757-1707.2009.01019.x

10.1111/j.1757-1707.2011.01150.x

10.1080/00431672.1968.9932814

10.1080/07352680500316433

10.2134/agronj2009.0462

10.1007/s11105-008-0070-3

10.1002/j.1537-2197.1978.tb06175.x

10.1017/S0021859611000499

10.1016/j.fcr.2005.01.017

10.1111/j.1757-1707.2009.01010.x

USDA‐ERS(2012)State Factsheet – Overview.USDA Economic Research Service. Available at:http://www.ers.usda.gov/data-products/state-fact-sheets/state-data.aspx(accessed 4 August 2012).

USDA‐NRCS(2012)Soil Taxonomy.USDA Natural Resources and Conservation Service. Available at:http://soils.usda.gov/technical/classification/taxonomy/(accessed 14 November 2012).

10.1111/j.1757-1707.2010.01035.x

10.1016/j.biombioe.2010.01.030

10.1051/agro/2009034

Thông tin
Thông tin xuất bản

GCB Bioenergy

Tập 6 Số 1

1-13

Thông tin tác giả