Persistent Link:
http://hdl.handle.net/10150/191111
Title:
Modeling the movement of tebuthiuron in runoff and soil water
Author:
Arias Rojo, Hector Manuel.
Issue Date:
1986
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
A mathematical model was developed to integrate the physical concepts needed to predict the concentration of tebuthiuron in runoff and soil water. The model is based on a mass balance equation combined with a hydraulic routing equation and a solute transport equation in soil water. These equations are linked by a diffusion-controlled release of solutes from soil water to runoff. Field experiments were conducted on the Walnut Gulch Experimental Watershed in southeastern Arizona. A rotating-boom rainfall simulator was used to apply simulated rainfall to paired 3 x 11 m plots. The model was tested using rainfall simulator data after the application of tebuthiuron on a dry and on a wet soil. Rainfall, runoff, sediment and soil moisture content were sampled along with tebuthiuron concentration in soil, runoff and sediment. The results showed that the model represented the observations found in the field, though tebuthiuron concentrations in runoff were overestimated in the early stages of the runoff events.
Type:
Dissertation-Reproduction (electronic); text
Keywords:
Hydrology.; Watersheds -- Models -- Arizona.
Degree Name:
Ph. D.
Degree Level:
doctoral
Degree Program:
Renewable Natural Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Lane, Leonard J.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleModeling the movement of tebuthiuron in runoff and soil wateren_US
dc.creatorArias Rojo, Hector Manuel.en_US
dc.contributor.authorArias Rojo, Hector Manuel.en_US
dc.date.issued1986en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractA mathematical model was developed to integrate the physical concepts needed to predict the concentration of tebuthiuron in runoff and soil water. The model is based on a mass balance equation combined with a hydraulic routing equation and a solute transport equation in soil water. These equations are linked by a diffusion-controlled release of solutes from soil water to runoff. Field experiments were conducted on the Walnut Gulch Experimental Watershed in southeastern Arizona. A rotating-boom rainfall simulator was used to apply simulated rainfall to paired 3 x 11 m plots. The model was tested using rainfall simulator data after the application of tebuthiuron on a dry and on a wet soil. Rainfall, runoff, sediment and soil moisture content were sampled along with tebuthiuron concentration in soil, runoff and sediment. The results showed that the model represented the observations found in the field, though tebuthiuron concentrations in runoff were overestimated in the early stages of the runoff events.en_US
dc.description.notehydrology collectionen_US
dc.typeDissertation-Reproduction (electronic)en_US
dc.typetexten_US
dc.subjectHydrology.en_US
dc.subjectWatersheds -- Models -- Arizona.en_US
thesis.degree.namePh. D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplineRenewable Natural Resourcesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairLane, Leonard J.en_US
dc.contributor.committeememberFogel, Martin M.en_US
dc.contributor.committeememberBohn, Hinrichen_US
dc.contributor.committeememberWarrick, Arthur W.en_US
dc.contributor.committeememberGay, Lloyd W.en_US
dc.identifier.oclc213358983en_US
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