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Theses/Dissertations from 2007

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Watershed planning in Central Iowa: an integrated assessment of the Squaw Creek Watershed for prioritization of conservation practice establishment, Ashley Anne Wendt

Theses/Dissertations from 2006

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Vegetative filter strip assessment in the state of Iowa, Manveen Bansal

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A conjunctive groundwater and surface water model of the upper part of the Mark Twain Watershed in northeast Missouri, Chu-Lin Cheng

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Evaluation of fish passage and fish and macroinvertebrate communities in southwest Iowa streams modified by grade control structures, Mary Emily Litvan

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Reconstructing Quaternary landscapes and hydrology from soil survey maps, Bradley A. Miller

Theses/Dissertations from 2005

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Watershed planning in northeast Missouri : identifying needs and opportunities for riparian forest buffers in the Mark Twain Lake watershed, Joseph Paul Herring

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Knowledge discovery interface in environmental science applications, Inya Nlenanya Onwu

Theses/Dissertations from 2004

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Modeling surface soil and phosphorus transport using DSSAT models , Mohamud Hussein Egeh

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Using surface solute transport properties measured by time domain reflectometry to predict subsurface leaching , Anju Gaur

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Riparian land-use impacts on stream and gully bank soil and phosphorus losses with an emphasis on grazing practices , George Nick Zaimes

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Using rainfall simulation, TDR, and tracer anions to determine effects of soil properties on nitrate leaching , Jian Zhou

Theses/Dissertations from 2001

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Field estimation of soil hydraulic and chemical transport properties , Salem Ali Matar Al-Jabri

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Quantitation of bound pesticide residues in field and wetland soils , Larry Warren Wulf

Theses/Dissertations from 2000

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Nitrogen losses from Midwestern watersheds : implications for nitrogen management policies, Stephanie Ann McCaslin

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Nitrogen losses from Midwestern watersheds : implications for nitrogen management policies, Stephanie Ann McCaslin

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The study and modeling of atrazine fate in buffer strips soil , Alissara Reungsang

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Effects of liquid swine manure placement and rate on phosphorus loss with runoff water , Hadi Tabbara

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Effects of swine manure management on bacterial quality of subsurface drainage , Elizabeth Anne Warnemuende

Theses/Dissertations from 1999

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A decision support system for planning and management of sustainable livestock production in the Midwest, Irene Mary Crawford

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Spatio-temporal modeling in an agricultural watershed , Shabana Hameed

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Soil testing and plant analysis to optimize nitrogen management in manured cornfields , David Jay Hansen

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Characterization of preferential solute transport in soil , Jaehoon Lee

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Management of liquid swine manure for environmental benefits through the use of soil infiltration and wetland systems, Shannon Rae Prantner

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Effects of variable rates, times and methods of application of swine manure on nitrate-nitrogen in subsoil water, crop yields, N uptake and recovery and soil residual nitrate-nitrogen: a three year study , Sara Dominga Smith

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Heat storage and atmospheric heat and moisture fluxes from mid-latitude isolated inhomogeneities , Michael Ralph Taber

Theses/Dissertations from 1998

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Bacteria in agricultural drainage as affected by manure management, Michael Jason Cook

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Simulation modeling and visualization of hydrologic response of an agricultural watershed , Fulbert Leon Namwamba

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An integrated assessment of watershed land use impacts on aquatic ecosystem integrity, Sarah Marie Stratton

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Hydrology and hydrodynamic behavior of constructed wetlands, Chad Michael Zmolek

Theses/Dissertations from 1997

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Infiltration in a Coland clay loam under a six-year old multi-species riparian buffer strip, cultivated row crops and continuously grazed pasture, Luna Bharati

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Nitrate removal capacity of constructed wetlands , Richard Gregory Phipps

Theses/Dissertations from 1996

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Development of an integrated watershed-scale surface hydrologic modeling environment using ARC/INFO GIS, Chi-Chuan Chen

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Effects of emergent vegetation on wetland microbial processes , Charles Lee Rose

Theses/Dissertations from 1995

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Assessment of the fate and transport of nitrate in groundwater within the Walnut Creek watershed, Beth Lynn Johnson

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Microbial biodegradation of the herbicide 2,4-D in soils and subsurface sediments, Jennifer Anne Welch

Theses/Dissertations from 1993

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Evaluation of techniques for establishing sedge meadow vegetation, Tony Lee Bremholm

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Gas supersaturation and gas bubble trauma in fish downstream from a moderately-sized reservoir, Donna Schulze Lutz

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Sorption kinetics of atrazine and hydroxyatrazine in freshwater wetlands, Michael Patrick Matter

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A preliminary hydrogeological assessment of a constructed multispecies riparian buffer strip near Roland, Iowa, William John Ryan

Theses/Dissertations from 1992

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Transformation and fate of nitrate in northern prairie wetlands , Thomas Matthew Isenhart

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Fertilizer fate under golf course conditions in the midwestern region, Steven Kent Starrett

Theses/Dissertations from 1991

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The bulk hydraulic conductivity and storativity of Wisconsin age unoxidized till in Central Iowa, Scott Dennis Dickson

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The application of aquifer testing evaluation techniques to oxidized till confining units in Central Iowa, Tracy S. Lemar

Theses/Dissertations from 1990

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Atrazine and nitrate leaching through soil columns as affected by conservation tillage, Patricia Lee Boddy

Theses/Dissertations from 1989

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A two-dimensional boundary element groundwater model , Mark Allen Liebe

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Sorption and transport of atrazine, alachlor and fluorescent dyes in alluvial aquifer sands , David Alan Sabatini

Theses/Dissertations from 1988

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Development of a two-dimensional finite element soil-moisture flow model , Mushtaque Ahmed

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Nitrate transformations and loss in an agricultural stream, Thomas Matthew Isenhart

Theses/Dissertations from 1987

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Groundwater flow theory for perforations in well casings and soil drain tubes , Fadel Musa Hashem

Theses/Dissertations from 1986

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A stochastic analysis of pollutant movement in groundwater , Kevin K. Wolka

Theses/Dissertations from 1985

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A finite element stream-aquifer model , Robert Sidney Carr

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Stochastic modeling of water movement in the saturated-unsaturated zone , Sang-Ok Chung

Theses/Dissertations from 1982

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Management of a gravel-pit lake system to optimize future water quality , Larry Michael Antosch

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The effects of Saylorville Reservoir and the Raccoon River on selected water quality parameters of the Des Moines River, David Paul Bierl

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Remote sensing of land resources: application of LANDSAT satellite imagery , Jahanshir Golchin

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Public management of on-site wastewater treatment systems in Iowa , Karen Marie Mancl

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Simulation of the rainfall runoff process from a watershed by using a microcomputer , Luis G. Salgado

Theses/Dissertations from 1981

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Hydrologic simulation of nitrate losses with tile drainage water , Rameshwar Singh Kanwar

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Chemical and physical influences on invertebrate drift in subarctic Alaskan streams , Jacqueline Doyle LaPerriere

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Hydraulics of river bed degradation, Willow Creek, Iowa , Heidargholi Massoudi

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Simulation of water requirements for irrigation of corn on three soils in Iowa , Zoreh Shahvar

Theses/Dissertations from 1980

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Moisture flow optimization in porous media for land leaching and for seedbed design , Stephen Bruce Affleck

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Surface water and groundwater interactions in a surficial aquifer in Northwest Iowa , Hossein Arfa

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Simulation modeling of erosion processes on small agricultural watersheds , Ebrahim Shahghasemi

Theses/Dissertations from 1979

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Effects of varying concentrations of certain major and minor nutrients on the interaction between a blue-green alga and a diatom, Howard David Markus

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Land and water resource planning using goal programming , Ronald Leroy Rossmiller

Theses/Dissertations from 1978

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Energy balance in crop rotation with different levels of fertilizer, Akbar Mostajeran

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Mathematical models for gully-wall and mineland-soil seep and slip, Seyed Farhad Mousavi

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Growth responses of selected freshwater algae to trace elements and scrubber ash slurry generated by coal-fired power plants , Robert Wayne Vocke

Theses/Dissertations from 1977

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Groundwater flow in double porosity media: Carbonate rocks , Yakup Basmaci

Theses/Dissertations from 1976

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Estimation of low flows in semi-arid basins and related implications in water quality management , David Worden Hubly

Theses/Dissertations from 1975

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Effect of tillage systems on nutrient loss in runoff, Susan Gail Barisas

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A statistical study of the variations in Des Moines River water quality , Lewis Metzler Naylor

Theses/Dissertations from 1973

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Theory of some free surface groundwater seepage problems , Muhammad Yunus Khan

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Potential for moisture conservation with watershed treatments in the thick loess area of western Iowa , Edwin Lawrence Miller

Theses/Dissertations from 1972

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Performance of three hydraulic systems for conveying and treating swine manure, Howard Lee Person

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Steady-state well-flow theory for a horizontal confined aquifer with arbitrary conditions on the outer boundary , Rienk Rindert Van der Ploeg

Theses/Dissertations from 1971

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Hydrogeology of the Nishnabotna River Basin , Randolph Stone

Theses/Dissertations from 1970

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Occurrence, movement and evaluation of shallow groundwater in the Ames, Iowa area , Manouchehr Sadat Akhavi

Theses/Dissertations from 1969

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A preliminary hydrogeologic investigation of the Upper Skunk River Basin , Douglas Charles Kent

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Drain spacing formulas and nomographs for stratified soils , Sadik Toksöz

Theses/Dissertations from 1967

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Activated-sludge stabilization of swine waste , Ronald Eldon Hermanson

Theses/Dissertations from 1963

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Elevation and frequency of occurrence of floods in Squaw Creek basin in Ames, Iowa, Raymond Macy Vawter