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Models and Modeling in a Regulatory Setting: Considerations, Applications, and Problems

Published online by Cambridge University Press:  12 June 2017

Mark H. Russell
Affiliation:
DuPont Agricultural Products, Wilmington, DE 19880-0402
Raymond J. Layton
Affiliation:
DuPont Agricultural Products, Wilmington, DE 19880-0402

Abstract

Computer based simulation models are increasingly being used to predict the environmental fate of crop protection chemicals. Some considerations that need to be given in selecting appropriate models for regulatory purposes include model applicability, validation, capability, ease of use, and documentation. Problems commonly encountered in modeling include limited accuracy, lack of defined objectives and standard modeling practices, and misuse of models and results. Models will continue to play an important role in the regulation of crop protection chemicals. It is important that regulators and industry agree on appropriate models and practices, and that regulatory decisions are not based solely on model results but take into account all available data.

Type
Symposium
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

Literature Cited

1. Arnold, J. G., Williams, J. R., Nicks, A. D., and Sammons, N. B. 1990. SWRRB, A Basin Scale Simulation Model for Soil and Water Resources Management. Texas A & M Univ. Press, College Station, TX. 142 p.Google Scholar
2. Beasely, D. B., Knisel, W. G., and Rice, A. P. (eds.). 1989. Proceedings of the CREAMS/GLEAMS Symposium. Agric. Eng. Dep., Coastal Plain Exp. Stn., Univ. Georgia, Publ. No. 4. 247 p.Google Scholar
3. Carsel, R. F., Smith, C. N., Mulkey, L. A., Dean, J. D., and Jowise, P. 1984. Users Manual for the Pesticide Root Zone Model (PRZM) Release 1. EPA-600/3-84-109. Environmental Research Laboratory, U. S. Environ. Prot. Agency, Athens, GA. 216 p.Google Scholar
4. Cheng, H. H. (ed.). 1990. Pesticides in the Soil Environment: Processes, Impacts, and Modeling. Soil Sci. Soc. Am., Madison, WI. 530 p.CrossRefGoogle Scholar
5. Davis, F. M., Leonard, R. A., and Knisel, W. G. 1990. GLEAMS User Manual, Version 1.8.55. U. S. Dep. Agric., Agric. Res. Serv., Southeast Watershed Res. Lab., Tifton, GA, Lab Note SEWRL-030190FMD. 62 p.Google Scholar
6. DeCoursey, D. G. (ed.). 1990. Proceedings of the International Symposium on Water Quality Modeling of Agricultural Non-Point Sources. U. S. Dep. Agric., Agric. Res. Serv., ARS-81. 875 p.Google Scholar
7. Knisel, W. G. (ed.). 1980. CREAMS, A Field-Scale Model for Chemicals, Runoff, and Erosion from Agricultural Management Systems. U. S. Dep. Agric., Conserv. Res. Rep. No. 26. 640 p.Google Scholar