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dc.contributor.advisorLopes, Vincente L.en_US
dc.contributor.advisorGay, Lloyd W.en_US
dc.contributor.authorBustamante Gonzalez, Angel
dc.creatorBustamante Gonzalez, Angelen_US
dc.date.accessioned2013-04-25T10:04:14Z
dc.date.available2013-04-25T10:04:14Z
dc.date.issued2000en_US
dc.identifier.urihttp://hdl.handle.net/10150/284306
dc.description.abstractImpacts of vegetation manipulation treatments on the hydrologic regime of ponderosa pine watersheds in Arizona were evaluated in this dissertation. First, the Seasonal-Kendall test was applied to detect trends in the precipitation and water yield of the control watershed. Then the long-term implications of two levels of forest cutting (clear cut and strip cut with thinning) on the water yield of the treated watersheds were assessed by means of the traditional paired watershed method and plots of cumulative recursive residuals (CUSUM). CUSUM plots were proposed as a complementary tool to evaluate the duration of water yield changes following treatment. Next, BROOK90, a conceptual hydrologic model, was used to assess water yield changes of ponderosa pine watersheds associated with vegetative practices. The model was optimized and verified in the control watershed to determine if the model was applicable to the environment where the experiment was conducted. Then the model was optimized for the pre-treatment period of the treated watersheds and the optimized parameters were used to simulate the water yield of the post-treatment period. Finally, results obtained with the traditional paired watershed approach were compared with those obtained with the modeling simulation. The two methods were in reasonable agreement.
dc.language.isoen_USen_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.subjectBiology, Ecology.en_US
dc.subjectHydrology.en_US
dc.titleHydrologic effects of vegetative practices on ponderosa pine watersheds in Arizonaen_US
dc.typetexten_US
dc.typeDissertation-Reproduction (electronic)en_US
thesis.degree.grantorUniversity of Arizonaen_US
thesis.degree.leveldoctoralen_US
dc.identifier.proquest9992139en_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineRenewable Natural Resourcesen_US
thesis.degree.namePh.D.en_US
dc.identifier.bibrecord.b41175293en_US
refterms.dateFOA2018-09-06T02:43:40Z
html.description.abstractImpacts of vegetation manipulation treatments on the hydrologic regime of ponderosa pine watersheds in Arizona were evaluated in this dissertation. First, the Seasonal-Kendall test was applied to detect trends in the precipitation and water yield of the control watershed. Then the long-term implications of two levels of forest cutting (clear cut and strip cut with thinning) on the water yield of the treated watersheds were assessed by means of the traditional paired watershed method and plots of cumulative recursive residuals (CUSUM). CUSUM plots were proposed as a complementary tool to evaluate the duration of water yield changes following treatment. Next, BROOK90, a conceptual hydrologic model, was used to assess water yield changes of ponderosa pine watersheds associated with vegetative practices. The model was optimized and verified in the control watershed to determine if the model was applicable to the environment where the experiment was conducted. Then the model was optimized for the pre-treatment period of the treated watersheds and the optimized parameters were used to simulate the water yield of the post-treatment period. Finally, results obtained with the traditional paired watershed approach were compared with those obtained with the modeling simulation. The two methods were in reasonable agreement.


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