Combined Impact of Spatial Scale, Land Use, and Climate on Streamflow and Nitrogen: A Comparative Analysis

Persistent Link:
http://hdl.handle.net/10150/217057
Title:
Combined Impact of Spatial Scale, Land Use, and Climate on Streamflow and Nitrogen: A Comparative Analysis
Author:
Al-Lafta, Hadi
Issue Date:
2011
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:
Catchments of different spatial scale, land use, and climate are characterized by highly variable N fluxes. In order to understand these controls on nitrogen flux, Total Dissolved Nitrogen (TDN) budgets were quantified and analyzed for fifty seven different catchments around the world. These catchments have a wide range of spatial scales, land uses, and climates. Results demonstrate that each variable in our analysis (i.e. spatial scale, land use, and climate) imposes a specific impact on TDN yield though their impact is not similar. For example, climate is the strongest and most significant driver for TDN yield followed by catchment area and land use. Importantly, based on current study analysis, degree of perturbation of a catchment can be determined on the basis of only a few measurements of discharge and corresponding TDN concentration at a certain point (e.g. outlet of a catchment).
Type:
text; Electronic Thesis
Keywords:
Hydrology
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Hydrology
Degree Grantor:
University of Arizona
Advisor:
Meixner, Thomas

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleCombined Impact of Spatial Scale, Land Use, and Climate on Streamflow and Nitrogen: A Comparative Analysisen_US
dc.creatorAl-Lafta, Hadien_US
dc.contributor.authorAl-Lafta, Hadien_US
dc.date.issued2011-
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.abstractCatchments of different spatial scale, land use, and climate are characterized by highly variable N fluxes. In order to understand these controls on nitrogen flux, Total Dissolved Nitrogen (TDN) budgets were quantified and analyzed for fifty seven different catchments around the world. These catchments have a wide range of spatial scales, land uses, and climates. Results demonstrate that each variable in our analysis (i.e. spatial scale, land use, and climate) imposes a specific impact on TDN yield though their impact is not similar. For example, climate is the strongest and most significant driver for TDN yield followed by catchment area and land use. Importantly, based on current study analysis, degree of perturbation of a catchment can be determined on the basis of only a few measurements of discharge and corresponding TDN concentration at a certain point (e.g. outlet of a catchment).en_US
dc.typetexten_US
dc.typeElectronic Thesisen_US
dc.subjectHydrologyen_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineHydrologyen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorMeixner, Thomasen_US
dc.contributor.committeememberMcIntosh, Jenniferen_US
dc.contributor.committeememberBrooks, Paulen_US
dc.contributor.committeememberMeixner, Thomasen_US
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