Rainfall infiltration characteristics for a semi-arid watershed soil

Persistent Link:
http://hdl.handle.net/10150/191634
Title:
Rainfall infiltration characteristics for a semi-arid watershed soil
Author:
Morse, John Gray,1945-
Issue Date:
1976
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:
Rainfall infiltration characteristics for a semi-arid watershed soil were studied. The soil examined was obtained from Page Ranch, 25 miles north of Tucson, Arizona. Laboratory infiltration tests were conducted on reconstructed soil profiles similar to those on the watershed. A mathematical model of infiltration, developed by Dr. Roger Smith, was used to simulate the infiltration process. Results from infiltration tests conducted on site at the watershed during a previous research study were also simulated using the infiltration model. Laboratory and field infiltration tests were conducted using a realistic rotating disk rainfall simulator. Single- and dual-source gamma ray attenuation techniques were used to obtain soil moisture measurements within the laboratory soil profiles. Direct measurement of surface crusting effects in the laboratory using the dual-source technique was attempted but was determined to be unworkable due to resolution and boundary effect problems. Using the measured saturated hydraulic conductivity values of the laboratory and field soils, and the unsaturated soil properties as measured for the field soil, the mathematical model of infiltration as developed by Dr. Roger Smith simulated the infiltration rates of bare test plots. By changing the saturated conductivity of the upper soil layer, it was also possible to simulate the infiltration process on a grass-covered field plot.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Soil absorption and adsorption.; Soil permeability.; Soils -- Arizona.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Hydrology and Water Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Cluff, C. Brent

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleRainfall infiltration characteristics for a semi-arid watershed soilen_US
dc.creatorMorse, John Gray,1945-en_US
dc.contributor.authorMorse, John Gray,1945-en_US
dc.date.issued1976en_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.abstractRainfall infiltration characteristics for a semi-arid watershed soil were studied. The soil examined was obtained from Page Ranch, 25 miles north of Tucson, Arizona. Laboratory infiltration tests were conducted on reconstructed soil profiles similar to those on the watershed. A mathematical model of infiltration, developed by Dr. Roger Smith, was used to simulate the infiltration process. Results from infiltration tests conducted on site at the watershed during a previous research study were also simulated using the infiltration model. Laboratory and field infiltration tests were conducted using a realistic rotating disk rainfall simulator. Single- and dual-source gamma ray attenuation techniques were used to obtain soil moisture measurements within the laboratory soil profiles. Direct measurement of surface crusting effects in the laboratory using the dual-source technique was attempted but was determined to be unworkable due to resolution and boundary effect problems. Using the measured saturated hydraulic conductivity values of the laboratory and field soils, and the unsaturated soil properties as measured for the field soil, the mathematical model of infiltration as developed by Dr. Roger Smith simulated the infiltration rates of bare test plots. By changing the saturated conductivity of the upper soil layer, it was also possible to simulate the infiltration process on a grass-covered field plot.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshSoil absorption and adsorption.en_US
dc.subject.lcshSoil permeability.en_US
dc.subject.lcshSoils -- Arizona.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineHydrology and Water Resourcesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairCluff, C. Brenten_US
dc.contributor.committeememberEvans, Daniel D.en_US
dc.contributor.committeememberDutt, Gordon R.en_US
dc.identifier.oclc212628431en_US
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