Climate Friendly Farming Publications
CSANR webpage. Anaerobic digestion (AD) is a process in which organic matter is converted into methane by bacteria in the absence of oxygen. Under typical dairy farm conditions manure is stored in open ponds and applied to fields, where decomposition often occurs under anaerobic conditions. This leads to the natural, open-air production of methane, a greenhouse gas with more than 20 times the warming value of carbon dioxide. By enclosing, controlling and accelerating this natural anaerobic conversion process, not only can the methane be contained, but it can be converted to renewable energy, providing two mechanisms for carbon sequestration and global warming reduction – methane capture/conversion and fossil-fuel energy offset.
Miller, M., M. Anderson, C. Francis, C. Kruger, C. Barford, J. Park, and B. McCown. 2013. http://dx.doi.org/10.5304/jafscd.2013.034.016 Journal of Agriculture, Food Systems, and Community Development.
Efficient Use of Algal Biomass Residues for Biopower Production with Nutrient Recycle: Final Project Report
Jarvis, E. R. Davis, C. Frear. Aug 2013.
Anaerobic Digestion Systems: Integrating emerging technologies to improve environmental and economic impact
C. Frear, C.Kruger, H. Collins, M. Garcia-Perez, C. Stockle, R. Shumway, G. Astill, T. Ewing, N. Kennedy, T. Khalil, and G. Yorgey. July 2013. Academic Poster.
Frear, C, M. Garcia-Perez, C. Kruger, S. Chen. 2013.
J. Ma, B. Zhao, C. Frear, Q. Zhao, L. Yu, X. Li, S. Chen. June 2013.Bioresource Technology Volume 137, June 2013, Pages 41–50.
May 2013. This video describes how researchers at WSU monitor greenhouse gas exchanges in cereal-based cropping systems using the eddy covariance flux tower. Includes description of flux tower components. This work is part of the REACCH PNA research project.
May 2013. CSANR produced a 7.5 minute video showing how state-of-the-art anaerobic digestion systems can offer multiple benefits to society.
A simple methodology for rate-limiting step determination for anaerobic digestion of complex substrates and effect of microbial community ratio
J. Ma, C. Frear, Z. Wang, L. Yu, Q. Zhao, X. Li, S. Chen. Bioresource Technology. Volume 134, April 2013, Pages 391–395.
J. Ma, L. Yu, C. Frear, Q. Zhao, X. Li, S. Chen. Bioresource Technology. Volume 131, March 2013, Pages 6–12.
Yorgey, G. 2013. Recorded webinar. Part of Pacific Northwest Agriculture and Climate Change Webinar Series available here http://csanr.wsu.edu/webinars/pnw-ag-and-climate-change/ .
L. Yu, Q. Zhao, J. Ma, C. Frear, S. Chen. Bioresource Technology. Volume 124, November 2012, Pages 8–17.
What do we currently know about the impacts of climate change on Pacific Northwest cropland agriculture?
Kruger, C. 2012. Recorded webinar. Part of Pacific Northwest Agriculture and Climate Change Webinar Series available here http://csanr.wsu.edu/webinars/pnw-ag-and-climate-change/ .
Yorgey, G. 2012. Recorded webinar. Part of Pacific Northwest Agriculture and Climate Change Webinar Series available here http://csanr.wsu.edu/webinars/pnw-ag-and-climate-change/ .
Adam, J.C., Rajagopalan, K., Stockle, C.O., Kruger, C.E., Brady, M.P., Barber, M.E., Chinnayakanahalli, K.J., Yorgey, G.G., Nelson, R.L., Dinesh, S., Malek, K., Yoder, J., Chung, S., Vaughan, J.K., Leung, F., Lamb, B.K., Evans, R.D., Harrison, J., Stephens, J., Guenther, A., Kalyanaraman, A., Leung, L.R., Liu, M., Tague, C., Perleberg, A.B., Chen, Y., Norton, T.M., Jiang, X., & Zhu, J. (2012). BioEarth: A regional-scale earth system model to inform land and water management decisions. ASA-CSSA-SSSA International Annual Meeting, Cincinnati, OH.22 October 2012. The poster can be downloaded via link.
Weddell, B., L. Carpenter-Boggs, and S. Higgins. June 2012. FS069E. Washington State University researchers have taken a departure from the regionally focused, applied-science extension publication to write a fact sheet on the science, debate and challenges of global climate change.
May 2012. Coppedge, B., G. Coppedge, D. Evans, J. Jensen, K. Scanlan, B. Scanlan, P. Weisberg, and C. Frear. An anaerobic digester case study for alternative outtake markets. A report to Washington State Department of Commerce.
Brown, T.T., and D.R. Huggins. Journal of Soil and Water Conservation 2012 67(5):406-415; doi:10.2489/jswc.67.5.406.
Carbon storage and nitrous oxide emissions of cropping systems in eastern Washington: A simulation study
Stöckle, C., S. Higgins, A. Kemanian, R. Nelson, D. Huggins, J. Marcos, and H. Collins. Journal of Soil and Water Conservation 2012 67(5):365-377; doi:10.2489/jswc.67.5.365.
Methods for Producing Biochar and Advanced Biofuels in Washington State Part 3: Literature Review Technologies for Product Collection and Refining
Garcia-Perez, M. et. al. 2012. This is the third of a series of reports exploring the use of biomass pyrolysis to sequester carbon and to produce fuels and chemicals.
Methods for Producing Biochar and Advanced Biofuels in Washington State Part 2: Literature Review of the Biomass Supply Chain and Preprocessing Technologies From Field to Pyrolysis Reactor
Garcia-Perez, M., C. Kruger, M. Fuchs, S. Sokhansanj, P. Badger, J. Garcia-Nunez, T. Lewis, and S. Kantor. 2012. Second Project Report. Department of Biological Systems Engineering and the Center for Sustaining Agriculture and Natural Resources, Washington State University, Pullman, WA, 79 pp.
May 2012. Coppedge, B., G. Coppedge, D. Evans, J. Jensen, K. Scanlan, B. Scanlan, P. Weisberg and C. Frear. An anaerobic digester case study for alternative outtake markets and remediation of nutrient loading concerns within the region. A report to Washington State Department of Commerce.
WSU and Bellingham Technical College produced this video as a part of their grant-funded Anaerobic Digestion Technician certificate program. The video explains the technical aspects of operating and maintaining an anaerobic digester.
Two novel floor-scale anaerobic digester systems for processing food waste. Part 1: Multi-reactor, liquid recycle system for high solids. Part 2: Moderate solids system.
Frear, C., Ewing, T., Yu, L., Ma, J., and Chen, S. 2012. Olympia, WA. Washington State Department of Ecology.
2012. Ecology Publication 12-12-001. The technical report is available for download by section, including appendices, at the bottom of the linked page.