Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Modeling pesticides and nutrients on agricultural lands {microform} /
Author Donigian, Anthony S. ; Crawford., Norman H.
CORP Author Hydrocomp, Inc., Palo Alto, Calif.;Environmental Research Lab., Athens, Ga.
Publisher Hydrocomp, inc.,
Year Published 1976
Report Number EPA/600/2-76/043; EPA-R803116
Stock Number PB-250 566
OCLC Number 53140245
Additional Subjects Nutrients ; Farms ; Pesticides ; Runoff ; Water pollution ; Snowmelt ; Hydrology ; Snow ; Losses ; Soil erosion ; Agricultural wastes ; Sediment transport ; Computer programs ; Fluid infiltration ; Soil water ; Watersheds ; Surface water runoff ; Mathematical models ; Nitrogen ; Phosphorus ; Sensitivity ; Management ; Georgia ; ARM computer program ; Path of pollutants ; Surface water runoff
Library Call Number Additional Info Location Last
NTIS  PB-250 566 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation xiii, 318 p. : ill.
Modifications, testing, and further development of the Pesticide Transport and Runoff (PTR) Model have produced the Agricultural Runoff Management (ARM) Model. The ARM Model simulates runoff, snow accumulation and melt, sediment loss, pesticide-soil interactions, and soil nutrient transformations on small agricultural watersheds. The report discusses the major modifications to and differences between the PTR and ARM Models. Instrumented watersheds in Georgia provided data for testing and refinement of the runoff, sediment and pesticide portions of the ARM Model. Comparison of simulated and recorded values indicated good agreement for runoff and sediment loss, and fair to good agreement for pesticide loss. Pesticides transported only by sediment particles were simulated considerably better than pesticides that move both in solution and on sediment. A sensitivity analysis of the ARM Model parameters demonstrated that soil moisture and infiltration, land surface sediment transport, pesticide-soil interactions, and pesticide degradation are the critical mechanisms in simulating pesticide loss from agricultural watersheds.
Issued also as Environmental protection technology series; EPA-600/2-76-043. Research grant no. R803116-01-0, Program element no. 1BB039. Final report. Bibliography: p. 130-134.