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Combining Computer Simulation with Physical Simulation: An Attempt to Validate Turf Runoff Models

Published online by Cambridge University Press:  12 June 2017

James C. Lin
Affiliation:
Ecological Effects Section, Environmental Research, Agriculture Division, Miles, Inc., 17745 South Metcalf, Stilwell, KS 66085
Robert L. Graney
Affiliation:
Ecological Effects Section, Environmental Research, Agriculture Division, Miles, Inc., 17745 South Metcalf, Stilwell, KS 66085

Abstract

Predicting the off-target movement of agrochemicals applied to turf is an essential component for assessing risk to aquatic environments. For surface transport, a fully validated model does not exist. Such a model is required to make cost effective risk assessments and regulatory evaluations. To address this deficiency, a turf model validation program is outlined in this paper. The effect of turf characteristics on the fate and movement of pesticides is presented followed by the discussion of the selection for a proper turf runoff model. The design and implementation of small plot runoff studies and their usefulness in model validation are discussed. The procedures of model calibration and model verification are explained for model validation purpose.

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

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