Science CV

As explained here, the Conservation Technology Information Center, in partnership with Field to Market and others, launched a  workgroup in February 2023 with representation from across the rapidly expanding climate smart agricultural community to collaborate on the development and use of an appropriate multi-model ensemble (MME) approach to modeling soil carbon. The workgroup released a finalized version of its Phase 1 report on February 16, 2024. The report includes recommendations for how to best proceed with Phase 2.

As indicated in the slides shown here, soil carbon will play a helpful but relatively minor role in climate mitigation. For example, 400 M acres of cover crops (at 0.33 t CO2e/ac) require one year to offset the 0.14 Gt CO2e per day that are currently emitted by humanity.

 “Step 1: Accept our Powerlessness: The case for a shift in climate policy toward adaptation and resilience,” blog on real-whirlwind.com/news(2024). Published 13-Nov-2024. “Let’s not be Sisyphus: the data are telling us that our climate mitigation efforts up until now have been futile,” blog on real-whirlwind.com/news (2024). Published 17-Sep-2024. 

“It’s Not the Humidity, It’s the Heat: Don’t blame ‘corn sweat’ for sweltering summer conditions in the Midwest,” blog on real-whirlwind.com/news (2024). Published 6-Sep-2024.

“Cover Crop Adoption Slows According to Data,” blog on DTN (2024). Published 18-Apr-2024. https://www.dtnpf.com/agriculture/web/ag/news/article/2024/04/17/real-time-data-needed-better-track-2.

“Multi-Model Ensemble Approach to Soil Carbon: Phase 1 Report,” Conservation Technology Information Center, West Lafayette, IN, 10 pp.(2024). https://www.ctic.org/media/web/1708125358_MME-Soil-C-Phase-1-Report-Final.pdf“

Climate Analogs Can Catalyze Cross‐Regional Dialogs for US Specialty Crop Adaptation,” Scientific Reports, 13:9317, https://doi.org/10.1038/s41598-023-35887-x (2023). co authors: S Chaudhary, K Rajagopalan, C Kruger, M Brady, C Fraisse, S Hall, G Hoogenboom, R Melnick, J Reyes, C Stöckle, T Sulser.

“Progress in Applying a Multi-Model Ensemble Approach to Soil Carbon” blog on agclimate.net (2023). Published 16-Jun-2023. https://www.agclimate.net/2023/06/16/progress-in-applying-a-multi-model-ensemble-approach-to-soil-carbon/ .

“What do Hurricanes and Soil Carbon Have in Common? The Wisdom of a Multi-Model Ensemble Approach,” blog on agclimate.net (2022). Published 21-Nov-2022. https://www.agclimate.net/2022/11/21/what-do-hurricanes-and-soil-carbon-have-in-common-the-wisdom-of-a-multi-model-ensemble-approach/.

“In Pursuit of More Fruitful Food Systems,” International Journal of Life Cycle Assessment (2022). https://doi.org/10.1007/s11367-022-02101-5. co authors: S Asseng, C Fraisse, K Guan, G Hoogenboom, C Kruger, J Kruse, M Matlock, R Melnick, R Parajuli, K Rajagopalan, C Stöckle, T Sulser, L Tarar, G Thoma, K Wiebe.

“Potential benefits of climate change for potatoes in the United States,” Environmental Research Letters, 17 104034 (2022). https://doi.org/10.1088/1748-9326/ac9242. co-authors: C Zhao, C Stöckle, T Karimi, RL Nelson, F van Evert, A Pronk, AA Riddle, E Marshall, R Raymundo, Y Li, K Guan, G Hoogenboom, S Asseng.

“Making Healthy, Sustainable Diets Accessible and Achievable: A New Framework for Assessing the Nutrition, Environmental and Equity Impacts of Packaged Foods,” Current Developments in Nutrition, 6(10), (2022). https://doi.org/10.1093/cdn/nzac136. co-authors: E Decker, A Drewnowski, M Hamm, J Hwang, K Merrigan.

“Our Five-Year Mission … to Boldly Go Where No Integrated Model Has Gone Before,” blog on agclimate.net (2022). Published 30-Jun-2022. https://www.agclimate.net/2022/06/30/our-five-year-mission-to-boldly-go-where-no-integrated-model-has-gone-before/.

“New Digital Tools for Fruit and Vegetable Growers,” blog on agclimate.net (2022). Published 26-May-2022. https://www.agclimate.net/2022/05/26/new-digital-tools-for-fruit-and-vegetable-growers/.

“A Cornucopia of Opportunities for Domestic Produce,” blog on agclimate.net (2022). Published 18-Feb-2022. https://www.agclimate.net/2022/02/18/a-cornucopia-of-opportunities-for-domestic-produce/.

“Climate Analogs: See the Future Now,” blog on aglimate.net (2022). Published 27-Jan-2022. https://www.agclimate.net/2022/01/27/climate-analogs-for-specialty-crops-see-the-future-now/.

“Extreme Adaptation: Navigating the Troubled Waters of the ‘New Normal’,” blog on aglimate.net (2021). Published 13-Dec-21. https://www.agclimate.net/2021/12/13/extreme-adaptation-navigating-the-troubled-waters-of-the-new-normal/.

“The ‘Carbon Market Bazaar’: Future Windfall for Producers or Just Hot Air?” blog on aglimate.net (2021). Published 23-Nov-21. https://www.agclimate.net/2021/11/23/the-carbon-market-bazaar-future-windfall-for-producers-or-just-hot-air/.

“Will I be able to get fries with that? A new approach for answering life’s big questions about the future of food,” blog on agclimate.net (2021). Published 19-Oct-21. https://www.agclimate.net/2021/10/19/will-i-be-able-to-get-fries-with-that-a-new-approach-for-answering-lifes-big-questions-about-the-future-of-food/.

“Supply Chains for Processed Potato and Tomato Products in the US will have Enhanced Resilience with Planting Adaptation Strategies,” Nature Food 2:862–872 (2021). https://doi.org/10.1038/s43016-021-00383-w. co-authors: S Asseng, J Kruse, G Thoma, K Guan, G Hoogenboom, M Matlock, M McLean, R Parajuli, K Rajagopalan, C Stöckle, TB Sulser, L Tarar, K Wiebe, C Fraisse, C Gimenez, P Intarapapong, T Karimi, C Kruger, Y Li, E Marshall, RL Nelson, A Pronk, R Raymundo, AA Riddle, M Rosenbohm, D Sonke, F van Evert, L Xiao, G Wu, C Zhao.

“Mitigating Tradeoffs as Global Fruit and Vegetable Systems Expand to Meet Dietary Recommendations,” Environmental Research Letters, 16 055010 (2021). co-authors: AE Stratton, JW Finley, E Mitcham, S Myers, R Naylor, J Otten, C Palm.

“Protocol for Life Cycle Assessment Modeling of US Fruit and Vegetable Supply Chains- Cases of Processed Potato and Tomato Products,” Data in Brief, 34 106639 (2021). https://doi.org/10.1016/j.dib.2020.106639, co-authors: R Parajuli, S Asseng, CO Stöckle, J Kruse, C Zhao, P Intrapapong, MD Matlock, G Thoma.

“Good news: US fruit and vegetable supply chains are resilient,” blog on agclimate.net (2020). Published 17-Dec-20. https://www.agclimate.net/2020/12/17/good-news-us-fruit-and-vegetable-supply-chains-are-resilient/

“Mapping Conservation Management Practices and Outcomes in the Corn Belt Using the Operational Tillage Information System (OpTIS) and the Denitrification–Decomposition (DNDC) Model,” Land, 9(11):408; https://doi.org/10.3390/land9110408. (2020). co-authors: SC Hagen, G Delgado, P Ingraham, I Cooke, R Emery, JP Fisk, L Melendy, T Olson, S Patti, N Rubin, B Ziniti, H Chen, W Salas, P Elias.

“Beware humanity's growing use of nitrogen in fertilizers.” Guest Column, St. Louis Post-Dispatch, St. Louis, MO, January 31, 2020.

“Carbon Atoms Are Forever. And in the form of soil organic matter, might be Mother Earth’s best friend.” Guest Column, St. Louis Post-Dispatch, St. Louis, MO, December 27, 2019.

“United We Stand. Divided We Drown. The region is split on climate responses, but collaboration remains possible.” Guest Column, St. Louis Post-Dispatch, St. Louis, MO, October 31, 2019.

“‘Climate Privilege’ – defined and dethroned. Wealth is a key ingredient of global warming. But it’s the poor who suffer.” Guest Column, St. Louis Post-Dispatch, St. Louis, MO, October 4, 2019.

“‘The Big Climate Short.’ Any takers? Global-warming skeptics could rake in profits by betting scientists are wrong.” Guest Column, St. Louis Post-Dispatch, St. Louis, MO, July 28, 2019.

“Too wet to plant. Now what? Use of cover crops can make soil more resilient to drought and floods.” Guest Column, St. Louis Post-Dispatch, St. Louis, MO, June 16, 2019.

“Opportunity knocks. Who will answer? Scientist and former climate-change skeptic explains global-warming reality.” Guest Column, St. Louis Post-Dispatch, St. Louis, MO, May 23, 2019.

“Agriculture and Pollution: Sharing the Crowded Two-Way Street,” book chapter in Population, Agriculture and Biodiversity: Problems and Prospects, P Gustafson, P Raven, P Ehrlich, Ed,’s. co-author: RL Jones.

“Growing Progress in the Evolving Science, Business, and Policy of Sustainable Nutrition”, Current Developments in Nutrition, nzz059,https://doi.org/10.1093/cdn/nzz059. (2019). co-authors: M Smith-Edge, T Griffin, A Kendall, S Kass.

“Income Growth and Climate Change Effects on Global Nutrition Security to Mid-Century,” Nature Sustainability, 1 (12). doi:10.1038/s41893-018-0192-z. (2018). co-authors: GC Nelson, J Bogard, K Lividini, J Arsenault, M Riley, T Sulser, D Mason-D’Croz, B Power, M Herrero, K Wiebe, K Cooper, R Roseline, M Rosegrant.

“Sustainable and Equitable Increases in Fruit and Vegetable Productivity and Consumption are Needed to Achieve Global Nutrition Security,” position paper resulting from a workshop organized by the Aspen Global Change Institute and hosted at the Keystone Policy Center, July 30 – August 3, 2018, https://www.agci.org/lib/
18s3/sustainable-and-equitable-increases-fruit-and-vegetable-productivity-and-consumption-are. (2018). co-authors: AE Stratton et al.

“Multi-Indicator Sustainability Assessment of Global Food Systems,” Nature Communications, 9:848 DOI: 10.1038/s41467-018-03308-7 (2018). co-authors: A Chaudhary, A Mathys.

“Sustainable Nutrition,” invited review article for CAB Reviews, 12, 056, pp 1-10 (2017).

“Nutritional Sustainability: Aligning Priorities in Nutrition with Agricultural Production,” Advances in Nutrition, 8:780–8 (2017). co-authors: JW Finley, D Dimick, E Marshall, GC Nelson, J Mein.

“Modelling Sustainable Nutrition Security,” book chapter in Sustainable Nutrition in a Changing World, pp 43-57 (2017). HK Biesalski, A Drewnowski, JT Dwyer, S Strain, Ed.’s: Springer-Verlag.

“Greenhouse Gas Emissions and Irrigation Water Use in the Production of Pulse Crops in the United States,” Cogent Food & Agriculture (2017), 3:1334750.

“Crop Health and its Global Impacts on the Components of Food Security,” Food Security, 9(2):311–327  (2017). co-authors: S Savary, S Bregaglio, L Willocquet, D Mason-D’Croz, A Sparks, N Castilla, A Djurle, C Alline, M Sharma, V Rossi, L Amorim, A Bergamin, J Yuen, P Esker, N McRoberts, J Avelino, E Duveiller, J Koo, K Garrett.

“C-Quest: Charting a Course for Climate Research in Agriculture,” ILSI Research Foundation, Washington, DC (2016). co-authors: A Bunning, L Williams.

“Making the Case for US Agricultural Research,” BioScience 67(3):311-312 (2017).

“Seven Food System Metrics of Sustainable Nutrition Security,” Sustainability 8(3) 196 (2016). co-authors: A Gutman, W Leet, A Drewnowski, J Fanzo, J. Ingram.

“Pharaoh’s Dream Revisited: An Integrated U.S. Midwest Field Research Network for Climate Adaptation,” BioScience 66 (1):80-85 (2016). co-authors: M Hayes, E Janssen, DB Lobell, S Long, GC Nelson, HB Pakrasi, P Raven, GP Robertson, R Robertson, D Wuebbles.

“Building a Sustained Climate Assessment Process,” Special Issue of Climatic Change: The National Climate Assessment: Innovations in Science and Engagement, 135(1):23-37 (2016). co-authors: JL Buizer, K Dow, ME Black, KL Jacobs, AM Waple, RH Moss, SC Moser, A Luers, TC Richmond, SL Hays, CB Field.

“Extreme weather and resilience of the global food system (2015). Final Project Report from the UK-US Taskforce on Extreme Weather and Global Food System Resilience,” The Global Food Security Programme, London, UK, 84 pp. co-authors: R Bailey, TG Benton, A Challinor, J Elliott, B Hiller, M Jahn, A Jones, C Kent, K Lewis, T Meacham, M Rivington, D Robson, JR Tiffin, D Wuebbles.

“Analyzing Correlations Between Stream Benthic Macroinvertebrate Community Structure, Water Quality, and Watershed Land Use in the Continental United States,” Biological Engineering Transactions 7(4):169-182 (2015). co-authors: HN Sandefur, E Cummings, RZ Johnston, MD Matlock.

“Sustainable Nutrition Security: the Role of Food Systems,” ILSI Research Foundation, Center for Integrated Modeling of Sustainable Agriculture and Nutrition Security. Washington, DC (2014). co-authors T Acharya, J Fanzo, J Ingram, B Schneeman, L Allen, K Boote, A Drewnowski, F Ewert, S Hall, P Hendley, M Howden, S Janssen, J Jones, M Latulippe, H Lotze-Campen, J McDermott, H van Meijl, G Nelson, R Newsome, A Roulin, B Scholes, S Tanumihardjo, G Tavill, D van der Mensbrugghe, K Wiebe.

“Sustained Assessment: A New Vision for Future U.S. Assessments,” (2014). Chapter 30 in: The Third National Climate Assessment, Melilo, Jerry M., Terese (T.C.) Richmond, and Gary W. Yohe, Eds. U.S. Global Change Research Program. co-authors: JA Hall, M Blair, JL Buizer, B Holland, SC Moser, AM Waple.

“Climate Adaptation Imperatives: Untapped Global Maize Yield Opportunities,” Int. J. Agric. Sustain.,  12(4):471-486  (2014). co-authors: JW Jones, CH Porter, G Hyman, MD Edgerton, T Gocken, J Shryock, M Doane, K Budreski, C Stone, D Healy, N Ramsey.

“Climate Adaptation Imperatives: Global Sustainability Trends and Eco-Efficiency Metrics in Four Major Crops: Canola, Cotton, Maize, and Soybeans,” Int. J. Agric. Sustain., 12(2):146-163  (2014). co-authors: J Shryock, M Doane, M Matlock, D Zilberman, M Collins, J Fry, S Smith, N Ramsey.

“Preparing the Nation for Change: Building a Sustained National Climate Assessment Process,” US National Climate Assessment and Development Advisory Committee, US Global Change Research Program, Washington, DC, 73 pp. (2013). co-authors: J Buizer, P Fleming, S Hays, K Dow, C Field, A Luers, R Moss, M Black, G Lough, S Moser, T Richmond, A Waple.

“US Food Security and Climate Change: Agricultural Futures,” US Economics Discussion Papers, No 2013-17, Kiel Institute for the World Economy. (2013). co-authors: ES Takle, R Beachy, GC Nelson, D Mason-D’Croz, and A Palazzo.

“Updated Empirical Model of Genetically-Modified Maize Grain Production Practices to Achieve European Union Labeling Thresholds,” Crop Sci, 53:1712–1721 (2013). co-authors: A Marceau, IO Brants, F Leprince, X Foueillassar, L Riesgo, F-J Areal, S Sowa, J Kraic, EM Badea.

“Climate Change and the Impact on the Future of Agriculture,” Proceedings of the Canadian Weed Science Society, Topics in Canadian Weed Science, (2012).

“Climate Change: a Crop Protection Challenge for the 21st Century,” Pest Management Science, 67:691-696 (2011).

“Response to Comments by DiGiovanni and Kevan on ‘Session V: Estimating Likelihood and Exposure,’ by Zaida Lentini, Environ. Biosafety Res. 5 (2006) 193-195”, Environ. Biosafety Res, 8:111-113 (2008).

“Sustainable Use of Glyphosate in North American Cropping Systems,” Pest Mgt Sci. 64:409-16 (2008).

“Modeling the Impact of Alternative Hosts and Pyrethroid Sprays on Helicoverpa zea Adaptation to Bollgard Cotton,” J. Econ. Entomol., 99:2116-2124 (2006). co-authors: MA Caprio, and GP Head.

“Empirical Modeling of Genetically-Modified Maize Grain Production Practices to Achieve European Union Labeling Thresholds,” Crop Sci 46:2133–2140 (2006). co-authors: IO Brants, MJ Horak, KM Remund, EW Rosenbaum, and JK Soteres.

“Computer Modelling To Assess The Impact On Water Quality When Introducing Glyphosate-Tolerant Sugar Beet In Europe,” in Genetic Modification in Sugar Beet 2005, Volume 6 of Advances in Sugar Beet Research, co-authors: C Vanbellinghen, KH Carr, B Coyette, CA Gustin (2005).

“Missing Link?: Alachlor and Semen Quality.” Letter to editor of Environ. Health Perspect. 113, 652 (2005).

“Applicator Exposure to Acetochlor Based on Biomonitoring.” Regulat. Toxicol. Pharmacol. 43:141-149 (2005). co-authors: CA Gustin, SJ Moran, JD Fuhrman, ML Kurtzweil, JM Kronenberg, and MA Marshall.

“The Acetochlor Registration Partnership Surface Water Monitoring Program for Four Corn Herbicides,” J. Environ. Qual, 34:877-889 (2005). co-authors: AG Hackett, SJ Moran, P Hendley, IJ van Wesenbeeck, ND Simmons, AJ Klein, JM Kronenberg, JD Fuhrman, JL Honegger, J Hanzas, D Healy, and C Stone.

“The Acetochlor Registration Partnership State Ground Water Monitoring Program,” J. Environ. Qual. 34:793-803 (2005). co-authors: N de Guzman, P Hendley, IJ. van Wesenbeeck AJ Klein, JD Fuhrman, KZ Travis, ND Simmons, WE Teskey and RB Durham.

“The Acetochlor Registration Partnership Prospective Ground Water Monitoring Program.” J. Environ. Qual. 34:1004-1015 (2005). co-authors: AC Newcombe, JD Fuhrman , IJ van Wesenbeeck, ND Simmons, AJ Klein, and K Harradine.

“An Empirical Model for Pollen-Mediated Gene Flow in Wheat,” Crop Sci 45:1286-1294 (2005). co-authors: MJ Horak, CB Rempel, SG Metz, DR Gigax, and P Hucl.

“Fractal-Based Scaling and Scale-Invariant Dispersion of Peak Concentrations of Crop Protection Chemicals in Rivers,” Environ. Sci. & Technol., 38:2995-3003 (2004). co-authors: KH Carr, TR Green, CA Gustin, RL Jones, RP Richards.

“Activated Carbon Adsorption of Chloroacetanilide Herbicides and their Degradation Products from Surface Water Supplies,” AQUA: Journal of Water Supply: Research and Technology, 52:443-454 (2003) co-authors: KH Carr, DB Carson, JD Fuhrman, AG Hackett, TJ Hoogheem, VL Snoeyink, M Curry, B Heijman, S Chen, P Hertl, IJ van Wesenbeeck.

“Comparison of US EPA’s Tier 1 and 2 Index Reservoir Model Estimates to Drinking Water Reservoir Monitoring Results in Selected US Systems in 1999/2000.” 10th International Congress Pesticide Chemistry, Basel, August 2002. in Book of Abstracts, vol. 2, p 125 (2002). co-authors: P Hertl, SH Jackson, RL Jones, MH Russell, MJ Schocken, WA Phelps.

“Fractal-Based, Scale-Dependent Models for Characterizing Peak Concentrations of Crop Protection Chemicals in Surface Waters.” 10th International Congress Pesticide Chemistry, Basel, August 2002. in Book of Abstracts, vol. 2, p 123 (2002). co-authors: KH Carr, CA Gustin.

“Computer Modelling of Global Efforts to Reduce Off-Site Impacts of Crop Protection Chemicals Through the Adoption of Transgenic Cropping Systems.” 10th International Congress Pesticide Chemistry, Basel, August 2002. in Book of Abstracts, vol. 2, p 124 (2002). co-authors: B Coyette, KH Carr, CA Gustin.

“Removal of Chloroacetanilide Herbicides and Their Degradation Products from Surface Water Supplies Using Powdered Activated Carbon.” 10th International Congress Pesticide Chemistry, Basel, August 2002. in Book of Abstracts, vol. 2, p 122 (2002). co-authors: KH Carr, DB Carson, JD Fuhrman, AG Hackett, TJ Hoogheem, VL Snoeyink, M Curry, B Heijman, IJ van Wesenbeeck.

“Stewardship Programs to Reduce Off-Target Movement of Glyphosate.” 10th International Congress Pesticide Chemistry, Basel, August 2002. in Book of Abstracts, vol. 2, p 106 (2002). co-authors: B Cambon, B Coyette, MA Reding.

“Predicted Impact of Transgenic, Herbicide-Tolerant Corn on Drinking Water Quality in Vulnerable Watersheds of the Midwestern United States,” Pest Mgt Sci, 58:146-160 (2002). co-authors: RD Wauchope, TL Estes, R Allan, JL Baker, AG Hornsby, RL Jones, RP Richards.

“Predicted Impact of Transgenic Cropping Systems on Water Quality and Related Ecosystems in Vulnerable Watersheds of the United States,” 2001 BCPC Symposium Proceedings No. 78: Pesticide Behaviour in Soils and Water, British Crop Protection Council, Brighton, UK, pp. 357-366 (2001) co-authors: TL Estes, R Allan, RL Jones, DR Buckler, KH Carr, CA Gustin, MJ McKee, AG Hornsby, RP Richards.

“Tiered Approach for Ground Water Study Requirements,” CRC Publications (2001).

“A Tiered Approach for Ground Water Study Requirements in the United States,” First International Conference on the Behaviour of Pesticides in Soils, Ground and Surface Water, Die Akademie Fresnius GmbH, Proceedings (1999).

“New Uses for Information Technology in Global Product Stewardship,” IBC International Symposium, London, UK, September 26, 1997, Proceedings (1997).

“Current State of Modeling to Predict Leaching and Run-Off Potential,” IBC International Symposium, London, UK, September 25, 1996, Proceedings (1996).

“Further Development of TA-DA!: A New Geographically-Based Probabilistic Modeling System,” COST International Symposium, Warwick, United Kingdom, May 15, 1996, Proceedings (1996).

“Predicting Surface and Ground Water Contamination by Agricultural Chemicals - Models Versus Monitoring,” IBC International Symposium on Computer Modeling Of Agricultural Chemical Fate in the Environment, London, UK, June 9, 1994, Proceedings (1994).

“New Advances in Predicting Pesticide Fate and Transport,” COST International Symposium, Brussels, Belgium, April 29, 1994, Proceedings (1994).

“Effect of Nonlinear Dissipation Kinetics on the Predictions of Environmental Fate Models,” submitted to J. Environ. Toxic. & Chem (1994).

“Advantages and Potential Pitfalls in the Use of Models for Regulatory Control of Pesticide Usage,” Brighton Crop Protection Conference, Brighton, UK, Proceedings (1993).

“Use of Computer Models to Assess Exposure to Agricultural Chemicals via Drinking Water,” The Science of the Total Environment, 171:35-42 (1995).

“Pesticides in Drinking Water,” John Wiley & Sons, New York (1993).

“Development of Novel Active Ingredients,” in Risk of Pesticides in Groundwater, ed. Enzo Funari, National Institute of Health, Italy (1993).

“Computer Modeling Applications in Environmental Assessments: Predicting Movement of Pesticides into Drinking Water,” in Reviews of Environmental Toxicology, ed. R. Michael Roe, North Carolina State University (1993).

“Use of Soil Property Data and Computer Models to Minimize Agricultural Impacts on Water Quality,” Proceedings, Soil Specific Crop Management, University of Minnesota, Bloomington, MN, April 14-16 (1992).

“Recommended Approaches to Assess Pesticide Mobility in Soil,” GIFAP Soil Mobility Sub-Group Report, February 28 (1992).

“In Search of Environmental Friendliness: Screening and Modeling Techniques for Assessing the Potential for Ground and Surface Water Contamination by Herbicides,” Proceedings, 8th Symposium on Herbicides, Piacenza, Italy, June 11-12 (1991).

“Field Calibration of SURFACE: A Model of Agricultural Chemicals in Surface Waters,” J. Environ. Sci. Health, B25:665-687 (1990).

“Nonlinear Pesticide Dissipation in Soil: A New Model Based on Spatial Variability,” Environ. Sci. & Technol., 24:1032-1038 (1990), co-author: LR Holden.

“Controlled Delivery and Soil Applications,” in Controlled Delivery of Crop Protection Agents, ed. R. M. Wilkins, Taylor and Francis Ltd., pp. 23-42 (1990).

“Groundwater Ubiquity Score: A Simple Method for Assessing Pesticide Leachability,” J. Environ. Toxic. & Chem., 8:339-357 (1989).

“Modeling Root Zone Dispersion: A Comedy of Error Functions,” Chem. Eng. Comm., 73:77-94 (1988).

“Accuracy of Predictive Water Quality Models -- Comparison with Measured Surface Water Concentrations of Crop Chemicals in Northern Ohio,” J. Environ. Toxic. & Chem., 7:261-262 (1988).

“Modeling of Pesticide-Soil Interactions: A New Tool in Formulation Optimization,” in Controlled Release of Bioactive Materials, 12th International Symposium, pp. 263-264 (1985).

“Controlled Release Animal Repellents in Forestry,” in Bioactive Polymeric Systems, eds. C.G. Gebelein and C.E. Carraher, Plenum Publ., pp. 179-201 (1985).

“The Reduction of Deer Browsing of Douglas-fir (Pseudotsuga menziesii) Seedlings by Quadrivalent Selenium,” Forest Ecol. Mgt., 7:163-181 (1984).