Yield of perennial herbaceous and woody biomass crops over time across three locations |
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| Affiliation: | 1. Beijing Center for Pollution Control and Resource Recovery, Beijing University of Chemical Technology, Beijing 100029, China;2. Chinese Research Academy of Environmental Sciences, Beijing 100029, China;1. School of Chemical Engineering and Technology, Chemical Engineering Research Center, Collaborative Innovation Center of Chemical Science and Engineering, 300350 Tianjin, China;2. State Key Laboratory of Chemical Engineering, Tianjin University, 300350 Tianjin, China;3. Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway;1. Universidade de Lisboa, Instituto Superior de Agronomia, Centro de Estudos Florestais (CEF), Tapada da Ajuda, 1349-017, Lisbon, Portugal;2. LNEG-Laboratório Nacional de Energia e Geologia I. P., Unidade de Bioenergia, Estrada do Paço do Lumiar 22, 1649-038, Lisbon, Portugal;1. Hubei Engineering Technology Research Center of Energy Photoelectric Device and System, Hubei University of Technology, Wuhan 430068, China;2. School of Science, Hubei University of Technology, Wuhan 430068, China;3. School of Metallurgy and Environment, Central South University, Changsha 410083, China |
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| Abstract: | The use of perennial biomass crops is expected to increase and will likely be part of a diversified approach to cropping system design that focuses on multiple economic, ecological, and environmental benefits. Field experiments were conducted from 2006 to 2011 at three locations in Minnesota to quantify biomass production across a diverse set of perennial herbaceous and woody crops. Herbaceous crops were harvested annually in the fall while the woody crops were harvested once following five years of growth. Willow produced more total biomass than all other woody and herbaceous biomass crops across all locations. However, miscanthus biomass yield was similar to ‘SX67’ willow at St. Paul and Waseca, but was dependent on the cultivar of miscanthus. Prairie cordgrass cultivars were among the highest and most consistent yielding herbaceous biomass crops across locations. Miscanthus cultivars produced the highest annual dry matter yield of 35 Mg ha−1 yr−1 biomass, but only during the final year of the study. Other herbaceous crops such as switchgrass performed well in certain locations and may offer flexibility in cropping choice. This unique information on comparative biomass yield across a diversity of perennial crops will inform the overall decision-making process in a way that reduces risk and optimizes productivity in specific environments. This study shows that several biomass crop species can be successfully grown as part of a diversified biomass cropping enterprise. |
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| Keywords: | Biomass feedstock Crop production Biomass production Bioenergy crops Renewable energy |
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